Board-Certified Dermatologist | Medical & Cosmetic Dermatology

Lisa M. Gruson is a board-certified dermatologist at the Skin Institute of New York (SINY®), where she specializes in medical dermatology, cosmetic dermatology, and advanced laser procedures. She treats adult patients across multiple SINY® locations in New York City and Brooklyn.

Dr. Gruson is known for her thorough approach, clear communication, and patient-focused care, helping patients achieve healthier skin through personalized treatment plans. She has particular expertise in skin allergies and contact dermatitis, along with the diagnosis and management of a wide range of skin conditions.

Patients appreciate her ability to explain treatment options clearly and take the time to answer questions, ensuring every patient feels confident in their care.

Schedule an Appointment with Dr. Gruson

Education & Training

Dr. Gruson completed her undergraduate studies at the University of Michigan in Ann Arbor, graduating with Phi Beta Kappa honors.

She went on to earn her medical degree from the NYU Grossman School of Medicine, where she received the prestigious Marion B. Sulzberger Dermatology Award and was inducted into the Alpha Omega Alpha Honor Medical Society.

Dr. Gruson completed her dermatology residency at NYU Medical Center, serving as Chief Resident and receiving the Morris Leider Award for Excellence in Dermatology.

Academic & Professional Leadership

In addition to her clinical work, Dr. Gruson is a Clinical Assistant Professor of Dermatology at NYU School of Medicine, where she teaches dermatology residents and mentors medical students considering careers in dermatology.

She is a Fellow of the American Academy of Dermatology and an active member of several professional organizations, including:

• New York State Medical Society
• American Contact Dermatitis Society
• Dermatologic Society of Greater New York

Dr. Gruson has also conducted dermatology research and published scholarly articles, particularly focused on skin allergies and contact dermatitis, and has presented her work at national dermatology conferences.

Clinical Expertise

Dr. Gruson provides comprehensive dermatology care, including:

Medical Dermatology

• Acne and acne scarring
• Eczema and dermatitis
• Psoriasis
• Skin allergy testing and treatment
• Skin infections
• Skin cancer screenings and evaluation of suspicious moles

Cosmetic Dermatology

• Laser skin treatments
• Skin rejuvenation procedures
• Treatment for sun damage and pigmentation concerns

Patient Experience & Satisfaction

Patients consistently praise Lisa M. Gruson for her thorough, attentive approach and clear communication. Many patients note that she takes the time to carefully listen to their concerns, explain diagnoses and treatment options, and ensure they feel comfortable and informed throughout their visit. Her ability to balance efficiency with a thoughtful bedside manner helps patients feel well cared for while keeping appointments running smoothly.

Convenient Locations in New York

Dr. Gruson sees patients at multiple Skin Institute of New York offices.

Bay Ridge, Brooklyn

7901 4th Ave, Brooklyn, NY 11209

Phone: 800-778-3090

Hours:

• Mon-Thu: 9:00 AM – 8:00 PM
• Fri: 9:00 AM – 6:30 PM
• Sat: 9:00 AM – 3:00 PM
• Sun: 9:00 AM – 2:00 PM

Serving patients from: Bay Ridge, Dyker Heights, Bensonhurst, Sunset Park, Fort Hamilton, Staten Island, and surrounding South Brooklyn communities.

Schedule an Appointment at Bay Ridge

Upper East Side

69 E 76th St, New York, NY 10021

Phone: 800-778-3090

Hours:

• Mon: 9:00 AM – 5:00 PM
• Tue–Thu: 9:00 AM – 8:00 PM
• Fri: 8:00 AM – 4:00 PM
• Sat–Sun: Closed

Serving patients from: Upper East Side, Lenox Hill, Carnegie Hill, Yorkville, Midtown East, Roosevelt Island, Upper West Side, East Harlem, and surrounding Manhattan communities.

Schedule an Appointment on the Upper East Side

Accepted Insurance Plans

Dr. Gruson accepts many major insurance providers, including:

• Aetna
• Anthem Blue Cross Blue Shield
• Blue Cross Blue Shield
• Cigna
• EmblemHealth
• Empire Blue Cross Blue Shield
• HealthFirst (NY)
• UnitedHealthcare
• UnitedHealthcare Oxford
• Fidelis Care (NY)
• Humana
• Medicare
• Multiplan PHCS
• 1199SEIU

Patients should contact the office to confirm coverage for their specific plan.

About SINY Dermatology (Skin Institute of New York)

The Skin Institute of New York (SINY®) is a leading dermatology group providing medical, surgical, and cosmetic dermatology services across New York City and Long Island. SINY physicians combine advanced clinical training, academic excellence, and patient-centered care to deliver individualized, evidence-based treatment for every patient.

Board-Certified Dermatologist | Medical, Surgical & Cosmetic Dermatology

Dr. Aurash Bina is a board-certified dermatologist at the Skin Institute of New York (SINY®) specializing in medical dermatology, skin cancer screening and prevention, and cosmetic dermatology. Known for his attentive bedside manner and thorough diagnostic approach, Dr. Bina is dedicated to delivering high-quality, patient-centered dermatologic care.

Dr. Bina believes that effective dermatology care begins with listening. He prioritizes patient education and personalized treatment plans, helping individuals understand their skin conditions and empowering them to make informed decisions about their care.

In addition to treating a wide range of medical dermatology conditions, Dr. Bina also provides cosmetic dermatology treatments designed to enhance skin health, appearance, and patient confidence.

Schedule an Appointment with Dr. Bina

Education & Training

Dr. Bina’s training reflects a strong foundation in dermatology and patient-centered clinical care.

• Bachelor of Science – University of Texas at Austin
• Doctor of Osteopathic Medicine (DO) – Touro University California College of Osteopathic Medicine
• Medical Internship – St. John's Episcopal Hospital, Queens, New York
• Dermatology Residency – St. John's Episcopal Hospital

During residency, Dr. Bina’s clinical excellence and leadership led to his appointment as Chief Dermatology Resident, where he gained extensive experience diagnosing and managing a wide range of skin conditions.

Dermatology Expertise

Dr. Bina treats patients with a wide variety of dermatologic concerns affecting the skin, hair, and nails.

His clinical interests include:

• Skin cancer screening and prevention
• Acne and inflammatory skin conditions
• Eczema and psoriasis
• Rosacea and chronic skin irritation
• Skin infections and rashes
• Hair and scalp disorders
• Preventative skin care and long-term skin health

Dr. Bina’s comprehensive approach focuses not only on treating current symptoms but also on preventing future skin concerns and maintaining long-term skin health.

Cosmetic Dermatology

In addition to medical dermatology, Dr. Bina offers advanced cosmetic dermatology treatments to help patients look and feel their best.

Services may include:

• Injectable treatments such as Botox® and dermal fillers
• Laser skin treatments
• Skin rejuvenation procedures
• Treatment for sun damage and uneven skin tone

By combining aesthetic treatments with medical dermatology expertise, Dr. Bina helps patients achieve both healthy and confident skin.

Commitment to Dermatology Advancement

Dr. Bina remains committed to staying current with the latest dermatology research, technologies, and treatment methods.

He regularly participates in continuing education and contributes to the dermatology community through clinical presentations and collaborative research efforts, helping advance the understanding of dermatologic care and treatment.

Patient Experience & Satisfaction

Patients consistently describe Dr. Bina as attentive, compassionate, and thorough. He takes the time to understand each patient’s concerns and explain treatment options clearly. Dr. Bina believes that building trust and open communication with patients is essential to successful dermatologic care.

Convenient Dermatology Locations in Brooklyn

Dr. Bina sees patients at two SINY Dermatology offices in Brooklyn.

Bay Ridge

7901 4th Ave Brooklyn, NY 11209

Phone: 800-778-3090

Hours:

• Mon–Thu: 9:00 AM – 8:00 PM
• Fri: 9:00 AM – 6:30 PM
• Sat: 9:00 AM – 3:00 PM
• Sun: 9:00 AM – 2:00 PM

Serving patients from: Bay Ridge, Dyker Heights, Bensonhurst, Sunset Park, Fort Hamilton, Staten Island, and surrounding South Brooklyn communities.

Schedule an Appointment in Bay Ridge

Williamsburg

395 Graham Ave Brooklyn, NY 11211

Phone: 800-778-3090

Hours:

• Mon: 9:00 AM – 6:00 PM
• Tue: 11:00 AM – 7:00 PM
• Wed: 9:00 AM – 8:00 PM
• Thu–Fri: 9:00 AM – 5:00 PM
• Sat: 10:00 AM – 3:00 PM
• Sun: Closed

Serving patients from: Williamsburg, Greenpoint, Bushwick, Bedford-Stuyvesant, East Williamsburg, and surrounding North Brooklyn neighborhoods.

Schedule an Appointment in Williamsburg

Accepted Insurance Plans

Dr. Bina accepts many widely used insurance plans across New York, including:

• Aetna
• Anthem Blue Cross Blue Shield / Empire Blue Cross Blue Shield
• Blue Cross Blue Shield
• Cigna
• UnitedHealthcare and Oxford
• EmblemHealth (GHI / HIP)
• Healthfirst (NY)
• Medicare
• Fidelis Care (NY)
• MetroPlus Health Plan
• MagnaCare
• 1199SEIU

Patients are encouraged to confirm coverage with the office prior to their appointment.

About SINY Dermatology (Skin Institute of New York)

The Skin Institute of New York (SINY®) is a leading dermatology group providing medical, surgical, and cosmetic dermatology services across New York City and Long Island. SINY physicians combine advanced clinical training, academic excellence, and patient-centered care to deliver individualized, evidence-based treatment for every patient.

Board-Certified Dermatologist | Medical, Pediatric & Cosmetic Dermatology

Dr. Vignesh Ramachandran is a board-certified dermatologist at the Skin Institute of New York (SINY®), providing comprehensive dermatologic care for adults and children across Brooklyn and Queens. He treats a wide spectrum of conditions affecting the skin, hair, and nails, combining advanced academic training with compassionate, patient-centered care.

Originally immigrating with his family as a child to a small town in Ontario, Canada, Dr. Ramachandran developed a strong appreciation for hard work, humility, and community. He brings those small-town values to every patient interaction—merging clinical excellence with empathy, honesty, and careful listening.

Patients frequently note his thoughtful bedside manner, clear explanations, and commitment to helping them understand both their diagnosis and treatment options.

Schedule an Appointment with Dr. Ramachandran

Education & Training

Dr. Ramachandran’s academic path reflects exceptional achievement at every stage of his training.

• Presidential Scholar – Dean’s Scholars Honors Program, University of Texas at Austin
• Doctor of Medicine (MD) – Baylor College of Medicine (graduated #1 in his class)
• Inducted into the Alpha Omega Alpha Honor Medical Society and Gold Humanism Honor Society
• Internal Medicine Internship – Texas Health Presbyterian Hospital Dallas
  Awarded Outstanding Intern of the Year
• Dermatology Residency – Ronald O. Perelman Department of Dermatology at New York University

During residency, Dr. Ramachandran became nationally recognized as a three-time “Rising Derm Star.” He also participated in multiple dermatology clinical trials, published more than 100 peer-reviewed research papers, and contributed to national dermatology committees.

He concluded residency by receiving the Irwin M. Freedberg, M.D. Award, recognizing the resident who contributed the most to advancing dermatology within the broader “House of Medicine.”

Clinical Expertise

Dr. Ramachandran provides full-spectrum dermatologic care for adults and children, including medical, surgical, and cosmetic dermatology.

Common conditions and treatments include:

• Acne and acne scarring
• Eczema and psoriasis
• Hair loss and scalp disorders
• Skin cancer screenings and lesion evaluation
• Rosacea and inflammatory skin conditions
• Pediatric dermatology
• Nail disorders
• Cosmetic dermatology and skin rejuvenation
• Preventative skin care and long-term skin health management

His clinical approach focuses on thorough diagnosis, personalized treatment planning, and clear communication, ensuring patients feel confident and informed throughout their care.

Academic Dermatology & Teaching

In addition to his clinical work at SINY Dermatology, Dr. Ramachandran remains actively involved in academic medicine.

He serves as a Clinical Instructor in the Ronald O. Perelman Department of Dermatology at New York University, where he:

• Teaches dermatology residents
• Conducts hospital consultations
• Participates in dermatology education and clinical training

He also provides inpatient consultations at NYU Langone Hospital—Brooklyn, helping manage complex dermatologic conditions in hospitalized patients.

This ongoing academic involvement allows him to stay closely connected with the latest dermatology research, treatments, and clinical innovations.

Patient Experience & Satisfaction

Patients consistently describe Dr. Ramachandran as compassionate, attentive, and highly knowledgeable. Many appreciate the time he takes to listen carefully to concerns and explain treatment plans in a clear, reassuring manner.

Convenient Locations in New York

Dr. Ramachandran sees patients at SINY Dermatology offices in Brooklyn and Queens.

Bay Ridge

7901 4th Ave Brooklyn, NY 11209

Phone: 800-778-3090

Hours:

• Mon–Thu: 9:00 AM – 8:00 PM
• Fri: 9:00 AM – 6:30 PM
• Sat: 9:00 AM – 3:00 PM
• Sun: 9:00 AM – 2:00 PM

Serving patients from: Bay Ridge, Dyker Heights, Bensonhurst, Sunset Park, Fort Hamilton, Staten Island, and surrounding South Brooklyn communities.

Schedule an Appointment in Bay Ridge

Forest Hills

109-33 71st Road, Suite 1F Forest Hills, NY 11375

Phone: 800-778-3090

Hours:

• Mon: 9:00 AM – 8:00 PM
• Tue: 9:00 AM – 7:00 PM
• Wed–Thu: 8:00 AM – 8:00 PM
• Fri: 9:00 AM – 7:00 PM
• Sat: 9:00 AM – 5:00 PM
• Sun: 10:00 AM – 3:00 PM

Serving patients from: Forest Hills, Rego Park, Kew Gardens, Flushing, Jamaica, Richmond Hill, Elmhurst, Corona, Middle Village, and surrounding Queens communities.

Schedule an Appointment in Forest Hills

Accepted Insurance Plans

Dr. Ramachandran accepts many major insurance plans commonly used across New York, including:

• Aetna
• Anthem Blue Cross Blue Shield / Empire Blue Cross Blue Shield
• Blue Cross Blue Shield
• Cigna
• UnitedHealthcare & Oxford
• EmblemHealth (GHI / HIP)
• Healthfirst (NY)
• Medicare
• Fidelis Care (NY)
• Humana
• MagnaCare
• Multiplan PHCS
• Oscar Health
• 1199SEIU

Additional plans may also be accepted. Patients are encouraged to confirm coverage prior to scheduling.

About SINY Dermatology (Skin Institute of New York)

The Skin Institute of New York (SINY®) is a leading dermatology group providing medical, surgical, and cosmetic dermatology services across New York City and Long Island. SINY physicians combine advanced clinical training, academic excellence, and patient-centered care to deliver individualized, evidence-based treatment for every patient.

Sydney Coscia is a dedicated Physician Assistant specializing in dermatology. Sydney earned her Master of Science in Physician Assistant (MSPA) degree from St. John’s University in June 2024, where she built a strong clinical foundation and a deep commitment to patient-centered care.

Her passion for dermatology grew from a desire to help patients feel confident in their own skin, addressing both medical and cosmetic concerns with compassion and expertise. Sydney is particularly drawn to the field’s unique combination of procedural work and long-term patient relationships, which allows her to witness meaningful, lasting improvements in her patients’ health and well-being.

To further her dedication and expertise, Sydney is completing a dermatology fellowship through the Society of Dermatology Physician Assistants (SDPA). She remains committed to continuous learning and providing high-quality, evidence-based care. Known for her approachable demeanor, attentiveness, and warm bedside manner, Sydney is a valued member of our team and is well-respected by her patients.

Angela Azar, MD, is a skilled and practiced Board-Certified Dermatologist specializing in Aesthetic Dermatology and Pediatric and Adult Dermatology at Angela Azar, MD. Dr. Azar leads her self-named dermatology practice, providing outstanding care for all patients in Great Neck and Jackson Heights, New York.

Education and learning have always been of importance to Dr. Azar. In 1996 she received her Medical Degree from Mount Sinai School of Medicine, now called Icahn School of Medicine at Mount Sinai, located in New York City, New York. 

From 1997 to 2000, Dr. Azar completed an Internship at Montefiore Medical Center (Montefiore Hospital) in the Bronx, New York, and a Dermatology Residency at NY Medical College (NYMC) in Valhalla, New York.

Dr. Azar is a talented Adult and Pediatric Dermatologist and Cosmetic Surgeon who obtained Board Certification from the American Board of Dermatology (ABD). She is affiliated with North Shore University Hospital in Manhasset, New York, and NY Columbia Presbyterian Hospital in Manhattan.

She has been practicing since 2000, giving her years of experience in the field of Cosmetic and Medical Dermatology. 

Dr. Azar and her team specialize in treating a variety of skin disorders, including alopecia and various types of hair loss. She is also skilled in treating skin cancer and performing earlobe repair.

Request a consultation today by calling Angela Azar, MD. Or use the convenient online booking system today.

Dr. Marc Avram is a Harvard-trained board certified dermatologist and hair loss specialist, practicing in the Upper East Side of New York City. Dr. Avram treats men and women with a variety of services to treat hair loss, including hair transplants, platelet rich plasma (PRP) treatments, low laser light therapy, and medications for hair loss. 

In addition to treating patients, Dr. Avram is a clinical professor of dermatology at the New York Presbyterian Hospital - Weill Medical College at Cornell Medical Center and has authored five textbooks on hair loss, and hair transplantation.

Dr. Avram and his staff provide exceptional care to all patients at his practice, Marc Avram MD. He has been in practice for over 20 years and many of his staff have been with him since the beginning, perfecting their techniques and approach to ensure the best possible patient outcomes.

Michael Tassavor, MD, MS, is a board-certified dermatologist and attending physician at MDCS: Medical Dermatology and Cosmetic Surgery with offices in the Midtown East and Upper East Side neighborhoods of New York City, as well as Smithtown, Commack, Hampton Bays, and Plainview, New York, and Clifton, Marlboro, and Englewood, New Jersey. 

Dr. Tassavor provides medical and cosmetic dermatology care and performs highly specialized Mohs surgery to treat skin cancer.

After earning his Bachelor of Science in molecular and cell biology at the University of Connecticut (UConn) in Storrs, Connecticut, Dr. Tassavor completed a Master of Science in biomedical sciences at Tufts University in Boston, Massachusetts.

He continued his schooling at the UConn School of Medicine in Farmington, Connecticut, earning his Doctor of Medicine. He completed a one-year medical internship at Tufts Medical Center in Boston before relocating to New York City for his dermatology residency at Icahn School of Medicine at Mount Sinai. 

Then, Dr. Tassavor completed his micrographic surgery and dermatologic oncology fellowship training with Brett Coldiron, MD, in Cincinnati, Ohio. 

Dr. Tassavor is a fellow of the American Academy of Dermatology (AAD), a resident member of the New York State Society of Dermatology and Dermatologic Surgery (NYSSDDS), and on the coding and reimbursement committee of the AAD.

Dedicated to his profession, Dr. Tassavor has published multiple scientific studies in peer-reviewed journals and authored a chapter in a dermatological surgery book.

While in school, Dr. Tassavor gained an interest in working with underserved and vulnerable individuals and continues to use his skills as a physician to provide expert care to those in need.

Carolyn Stull, MD, FAAD, is a board-certified dermatologist and fellowship-trained dermatologic surgeon. She treats the full spectrum of dermatologic conditions and specializes in Mohs micrographic surgery, surgical reconstruction following skin cancer removal, and facial aesthetics.

Dr. Stull is originally from Philadelphia and served as an Instructor of Dermatology at the University of Pennsylvania prior to joining MDCS. She earned her undergraduate degree from the University of Miami and her medical degree from Temple University School of Medicine. Dr. Stull completed dermatology residency at Rush University Medical Center in Chicago where she served as chief resident. She subsequently completed a fellowship in Mohs micrographic surgery and dermatologic oncology at the University of Texas M.D. Anderson Cancer Center. During fellowship she trained with experts in the management of rare and advanced skin cancers, complex surgical reconstruction and laser procedures. She also served as a sub-investigator for several clinical trials testing oncolytic viruses and immunotherapies for skin cancer treatment.

Dr. Stull has published numerous articles in peer-reviewed journals including the Journal of the American Academy of Dermatology, JAMA Dermatology and Dermatologic Surgery. She has been an invited speaker at regional and national meetings, and has been awarded grant funding from the University of Pennsylvania Center for Human Appearance and the Pennsylvania Medical Society for medical device innovation. She is a fellow of the American Academy of Dermatology and American Society for Dermatologic Surgery.

Outside of the office Dr. Stull enjoys traveling and spending time with her husband who is plastic surgeon and their daughter.

Toral Vaidya, MD, MPH, is a dermatologist serving New York City patients on the Upper East Side and Midtown Manhattan at MDCS Dermatology. She performs a wide variety of medical, cosmetic, and surgical dermatology services. 

Dr. Vaidya completed her undergraduate and graduate education at the University of Cincinnati in the BS/MD Dual Admissions Program in Medicine. She earned her MD and Master’s in Public Health from the University of Cincinnati College of Medicine. During medical school, Dr. Vaidya was selected for a prestigious clinical research fellowship in dermatology at Memorial Sloan Kettering Cancer Center, where she conducted studies in oncodermatology and procedural dermatology. She graduated at the top of her class with a Distinction in Dermatology. She then completed her internship in Internal Medicine at Mount Sinai Hospital and her residency in Dermatology at New York Presbyterian Hospital/Weill Cornell Medical Center. 

Throughout her training, she developed a keen interest in skincare, skin of color, and cosmetic dermatology. She has authored over 20 scientific publications in prominent dermatology journals and has presented her work at national and international meetings. She is a member of several professional organizations, including the Skin of Color Society, the American Society for Dermatologic Surgery, and the American Society for Laser Medicine and Surgery. 

Dr. Vaidya is a media expert who regularly writes for and contributes to medical and beauty publications, including Medscape Dermatology, US News and World Report, and Byrdie Beauty. Additionally, she pursued an elective in medical journalism at the ABC News Medical Unit, where she helped produce medical segments for Good Morning America and wrote digital articles. 

Dr. Vaidya's interests in aesthetics and procedural dermatology are complemented by her certification in Fashion Design and Garment Construction from Parsons School of Design in New York City. In her free time, she enjoys traveling and exploring the arts.

Snehal Amin, MD, FACMS, FAAD is co-founder and surgical director of MDCS Dermatology: Medical Dermatology & Cosmetic Surgery, located in Manhattan, Upper East Side, Commack, Hampton Bays and Plainview, NY, Clifton, and Englewood, New Jersey. As a board-certified dermatologic surgeon, he has:

• Provided top-notch patient care and life changing skin transformations
• Published numerous ongoing publications
• Focused on Mohs micrographic surgery, laser resurfacing, pediatric/adult lasers, and facial cosmetic reconstructions

Dr. Amin has:

• Previously served as Director of Mohs, Laser, and Dermatologic Surgery for New York Medical College
• Previously served as the interim Director of Mohs Surgery at Cornell - New York Presbyterian Medical Center
• Received numerous research grants for his groundbreaking work in melanoma, laser medicine, and skin cancer biology

Dr. Amin graduated from Harvard College (magna cum laude)with dual degrees in Biology and Sanskrit. He then:

• Graduated from  Albert Einstein College of Medicine Alpha omega alpha medical honor society
• Served as Chief Resident in dermatology at Cornell’s New York-Presbyterian Hospital
• Became board certified in skin cancer surgery and cosmetic dermatologic surgeries

Dr. Amin currently serves as Clinical Assistant Professor of Dermatology at Weill-Cornell Medical College. He is a fellow of both the American College of Mohs Surgery and the American Society of Dermatologic Surgery.

Monica Schadlow, MD, FAAD is a board-certified dermatologist at MDCS Dermatology: Medical Dermatology & Cosmetic Surgery, who has been providing general and cosmetic dermatology care to patients of Manhattan since 2001. She has extensive experience in laser hair removal, peels, Botox, Restylane, Juvederm, and numerous other skin enhancement and rejuvenation services.

In addition to her unmatched skill and knowledge, patients praise Dr. Schadlow for her gentle nature and willingness to educate them about their condition.

She stands out for her ability and priority in putting patients at ease during procedures and the personalized attention she brings to all cases.

Dr. Schadlow earned her bachelor’s degree from Swarthmore College, then went on to earn her medical degree from Weill Cornell Medical College. She continued her post-graduate medical training with an internship in internal medicine at St. Vincent’s Hospital and Medical Center in New York City and later served as Chief Resident for her residency at NewYork Presbyterian Hospital. For the past 15 years, Dr. Schadlow has worked in private practice dermatology. She sees patients full-time at MDCS Dermatology: Medical Dermatology & Cosmetic Surgery.

In addition to treating patients, Dr. Schadlow is a contributor to online and print journals. Dr. Schadlow is an officer of the Dermatologic Society of Greater New York, a member of the American Dermatology Board, and is a fellow of the American Academy of Dermatology and the American Society of Dermatologic Surgery. In her free time, she enjoys hanging out with friends and family.

Theresa Durchhalter, DO, is a board-certified dermatologist serving patients at Allure Dermatology in Hicksville, New York. She specializes in general and cosmetic dermatology and has experience treating adult and pediatric patients with a wide array of skin disorders, including acne, psoriasis, atopic dermatitis, alopecia, and skin cancers. 

Dr. Durchhalter is a native of Long Island, New York, with a long-standing commitment to her community. She graduated Magna cum Laude from Adelphi University in Garden City, New York, with a bachelor’s degree in biochemistry. 

In 2016, Dr. Durchhalter obtained her medical degree from Edward Via College of Osteopathic Medicine in Blacksburg, Virginia, where she graduated as a member of the Sigma Sigma Phi honors fraternity. Upon completion, she returned to New York to complete her dermatology residency at St. John’s Episcopal, where she was appointed chief resident. 

Dr. Durchhalter believes in a personalized, hands-on approach to patient care, utilizing her osteopathic skills to treat the entire body. She also takes pride in treating each patient as if they are family, creating a warm, trusting, and individualized environment. 

Dr. Durchhalter is an active member of various organizations, including the American Academy of Dermatology, the American Osteopathic College of Dermatology, and the American Medical Association.

Joanna Trigg DO is a Board Certified Dermatologist who treats both adult and pediatric patients. She is a native New Yorker who grew up in Brooklyn and attended Bishop Kearney High School. After graduating summa cum laude and earning a bachelor’s degree in biology with minors in chemistry and psychology from Wagner College, Dr. Trigg received her medical degree from NYIT College of Osteopathic Medicine in Old Westbury, NY. She then completed her residency at St. John’s Episcopal Hospital in Queens, New York in affiliation with Lake Erie College of Osteopathic Medicine.

During her residency, Dr. Trigg attended, presented and lectured at many conferences. She also served as Chief Dermatology resident during the final year. Training in New York City gave her exposure to a very large and diverse patient population.

Dr. Trigg is an active member of the American Academy of Dermatology, the American College of Osteopathic Medicine. and the American Society for Dermatologic Surgery. She is a Diplomate of the American Board of Dermatology and enjoys medical, surgical, and cosmetic dermatology, with her expertise in acne, rosacea and skin cancer screenings. Dr. Trigg enjoys working with her patients to provide a comprehensive and individualized treatment plan for all their needs!  

Dr. Robin Blum is a board-certified dermatologist with a wealth of experience. Through her practice at Central Park South Dermatology in Midtown Manhattan, New York, Dr. Blum is honored to play a role in helping her patients feel great in their own skin. 

Dr. Blum has always held a strong passion for education. From her early studies at Tufts University in Medford, Massachusetts, where she graduated cum laude, to earning her medical degree from Tufts University School of Medicine in Boston with honors, Dr. Blum has focused a great deal of energy toward education. 

Upon completing her medical degree, Dr. Blum refined her skills through an internship and residency in dermatology at Mount Sinai Medical Center in New York City, serving as chief resident in her final year. She is also proud of her two-year fellowship training in dermatopharmacology, where she focused on emerging therapies for acne, eczema, and psoriasis. 

Dr. Blum continues to seek out opportunities to expand her skills and knowledge through continuing education and training. She has been appointed Assistant Clinical Professor at Mount Sinai Medical Center’s Department of Dermatology and participates in the training and education of medical students, residents, and fellows. She has authored numerous articles published in a variety of medical journals, and her medical research has been presented at dermatologic conferences throughout the world. Her commitment to remaining on the cutting-edge of dermatology and medical aesthetics is shared by everyone on her team.

Among Dr. Blum’s areas of professional focus are adult and pediatric medical dermatology. She is also experienced in the latest cosmetic procedures. 

If you’re searching for a skilled dermatologist with a warm, personable nature and unrushed manner, schedule a time to sit down with Dr. Blum and discuss her approach to skin health and aesthetics. Online scheduling is available, or you’re always welcome to call and speak with a friendly administrative professional.  

Book Online

Sherry H. Hsiung, MD, is a board-certified dermatologic surgeon at the Skin Institute of New York (SINY®). Dr. Hsiung also practices general and cosmetic dermatology at SINY’s® three New York City–area offices, in the city’s West Village and in the Bay Ridge and Park Slope areas of Brooklyn, New York.

At the Massachusetts Institute of Technology in Cambridge, Massachusetts, Dr. Hsiung earned undergraduate degrees in both biology and chemical engineering, graduating with honors. While earning her medical degree from the University of Pennsylvania Medical School in Philadelphia, she was a member of the prestigious Alpha Omega Alpha Honor Medical Society. She then completed her residency in dermatology at New York University School of Medicine in New York City, serving as chief resident.

Dr. Hsiung retains active memberships in the American Academy of Dermatology and the American Society of Dermatologic Surgery, and she has lectured on dermatology topics at local and national conferences. She serves as a medical editor for the Journal of Drugs in Dermatology and is a consultant for the Kiehl’s Dermatology Advisory Board.

As a crucial part of the SINY® medical team, Dr. Hsiung specializes in Mohs Micrographic Surgery, a surgical technique used to treat skin cancer, focused on removing all of the cancer cells while preserving the healthy tissue in sensitive areas such as the face, hands, feet or genitals. She completed a prestigious fellowship in Mohs surgery with Dr. Perry Robins at NYU, and she is an active member of the American College of Mohs Surgery. Dr. Hsiung’s surgical expertise ranges from the simplest excisions to the most extensive skin cancer surgeries and repairs.

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Dr. Ezra Hazan is a board certified dermatologist and fellowship trained Mohs surgeon. He graduated with honors from Jefferson Medical College in Philadelphia, PA. Dr. Hazan went on to do an internship in internal medicine at Maimonides Medical Center in Brooklyn, NY. He then completed his dermatology residency at Thomas Jefferson University Hospital and fellowship in Mohs micrographic surgery and cosmetic dermatology at Mount Sinai Hospital. There he gained extensive knowledge and experience in procedural dermatology, including surgery of the skin as well as advanced cosmetic procedures like injectables, lasers and light based technologies.

Dr. Hazan is on staff at Mount Sinai Hospital, where he helps train dermatology residents, and at Penn Medicine Princeton Medical Center. He has published many academic journal articles and authored multiple textbook chapters on various topics in the field of dermatology. Dr. Hazan is a member of the American Academy of Dermatology, American Society for Dermatologic Surgery and American College of Mohs Surgery. He is passionate about the management and treatment of skin cancers, as well as cosmetic treatments and general dermatologic conditions. He strives to provide personalized quality care to all of his patients.

Dr. Sergey Petrosian, DO

Board-Certified Dermatologist | Medical & Pediatric Dermatology

Dr. Sergey Petrosian is a board-certified dermatologist at the Skin Institute of New York (SINY®), providing comprehensive dermatologic care to adult and pediatric patients across Brooklyn and Manhattan. A native New Yorker who grew up in Queens, Dr. Petrosian is deeply connected to the communities he serves in Park Slope, Bay Ridge, and the Upper East Side

Known for his thorough evaluations, attentive bedside manner, and patient-centered treatment plans, Dr. Petrosian is committed to delivering evidence-based dermatologic care in a welcoming, professional environment.

Schedule an Appointment with Dr. Petrosian

Education & Training

Dr. Petrosian’s academic and medical training reflect strong New York roots and rigorous clinical preparation:

• Graduate of Brooklyn Technical High School
• Bachelor of Science – University of Medicine and Dentistry of New Jersey
• Dermatology Residency (Chief Resident) – Stony Brook University
• Doctor of Osteopathic Medicine (DO) – New York Institute of Technology College of Osteopathic Medicine (formerly NYCOM)
• Dermatology Residency – St. John's Episcopal Hospital, affiliated with Lake Erie College of Osteopathic Medicine

His residency training provided comprehensive experience in medical dermatology, procedural dermatology, and the management of complex skin conditions across diverse patient populations

Clinical Expertise & Special Interests

Dr. Petrosian treats both adult and pediatric patients and provides care for a wide range of dermatologic conditions, including:

• Acne and inflammatory skin conditions
• Eczema and psoriasis
• Skin cancer screenings and lesion evaluation
• Pediatric dermatology
• General medical dermatology
• Preventative skin care

Patients consistently note his ability to listen carefully, thoroughly explain diagnoses, and create structured treatment plans that lead to measurable improvement.

Patient Experience & Satisfaction

Patients frequently describe Dr. Petrosian as kind, knowledgeable, and exceptionally thorough. Many appreciate that he takes the time to address concerns in detail and follows up thoughtfully to ensure progress and symptom improvement.

Convenient Locations in New York

Dr. Petrosian sees patients at SINY Dermatology offices in Brooklyn and Manhattan.

Park Slope, Brooklyn

76 7th Ave, Brooklyn, NY 11217

Phone:800-778-3090

Hours:

• Mon–Tue: 9:00 AM – 8:00 PM
• Wed–Thu: 8:00 AM – 8:00 PM
• Fri: 9:00 AM – 7:00 PM
• Sat: 9:00 AM – 5:00 PM
• Sun: 10:00 AM – 3:00 PM

Serving patients from: Park Slope, Prospect Heights, Gowanus, Boerum Hill, Cobble Hill, Carroll Gardens, Windsor Terrace, Sunset Park, and surrounding Brooklyn communities.

Schedule an Appointment at Park Slope

Upper East Side

69 E 76th St, New York, NY 10021

Phone: 800-778-3090

Hours:

• Mon: 9:00 AM – 5:00 PM
• Tue–Thu: 9:00 AM – 8:00 PM
• Fri: 8:00 AM – 4:00 PM
• Sat–Sun: Closed

Serving patients from: Upper East Side, Lenox Hill, Carnegie Hill, Yorkville, Midtown East, Roosevelt Island, Upper West Side, East Harlem, and surrounding Manhattan communities.

Schedule an Appointment on the Upper East Side

Accepted Insurance Plans

Dr. Petrosian accepts a wide range of major insurance plans, including:

• Aetna
• Anthem Blue Cross Blue Shield / Empire Blue Cross Blue Shield
• Blue Cross Blue Shield
• Cigna & Cigna-HealthSpring
• UnitedHealthcare & Oxford
• EmblemHealth (GHI / HIP)
• Healthfirst (NY)
• Medicare
• Fidelis Care (NY)
• Humana
• MagnaCare
• Meritain Health
• Multiplan PHCS
• Oscar Health
• 1199SEIU
• Surest Health Plans
• Regence Blue Cross Blue Shield

Additional plans accepted. Patients are encouraged to confirm coverage prior to scheduling.

About SINY Dermatology (Skin Institute of New York)

The Skin Institute of New York is a leading dermatology group providing medical, surgical, and cosmetic dermatology services across New York. SINY Dermatology physicians combine academic excellence, clinical research, and patient-focused care to deliver advanced skin treatments tailored to each individual.

Allison Jaekle, M.S., RPA-C

Board-Certified Physician Assistant | Medical & Cosmetic Dermatology

Allison Jaekle, M.S., RPA-C, is a board-certified physician assistant specializing in medical and cosmetic dermatology at the Skin Institute of New York (SINY®). Born and raised on Long Island, Allison brings a strong academic foundation, advanced clinical training, and a patient-centered approach to every visit.

Her goal is to restore and enhance the skin’s natural beauty through individualized care plans tailored to each patient’s unique needs.

Schedule an Appointment with Allison Jaekle

Education & Professional Background

Allison’s education reflects both academic excellence and leadership achievement:

• Bachelor’s Degree in History (Public Health Concentration) – Binghamton University
• Bachelor of Science in Health Sciences – Touro College
• Master in Physician Assistant Studies – Touro College

Upon graduation, Allison received the Leadership Award, Academic Achievement Award, and Clinical Achievement Award, recognizing her excellence in scholarship, patient care, and leadership.

She is a board-certified physician assistant and remains actively engaged in continuing education to stay at the forefront of dermatologic advancements.

Clinical Expertise & Special Interests

Allison provides comprehensive dermatologic care with expertise in:

• Medical dermatology
• Cosmetic dermatology
• Skin cancer screenings
• Acne and inflammatory skin conditions
• Preventative skin care
• Aesthetic treatment planning

Her approach prioritizes collaboration and education. Patients consistently note that she takes the time to listen, thoroughly explain treatment options, and ensure they feel confident in their care decisions.

Professional Memberships

Allison is an active member of:

• American Academy of Physician Assistants
• New York State Society of Physician Assistants
• Society for Dermatology Physician Assistants

Her professional involvement reflects her commitment to maintaining the highest standards of dermatologic care.

Patient Experience & Satisfaction

Patients frequently describe Allison as professional, thorough, compassionate, and easy to talk to. Many highlight how she spends ample time answering questions, explaining diagnoses and procedures clearly, and creating collaborative treatment plans.

Patients also praise the attentive and friendly SINY team, efficient appointment scheduling, and the feeling of being truly seen and heard during each visit.

Convenient Locations in New York

Allison Jaekle sees patients at multiple SINY Dermatology locations, providing accessible care across Brooklyn and Long Island.

Bay Ridge, Brooklyn

7901 4th Ave, Brooklyn, NY 11209

Phone: 800-778-3090

Hours:

• Mon-Thu: 9:00 AM – 8:00 PM
• Fri: 9:00 AM – 6:30 PM
• Sat: 9:00 AM – 3:00 PM
• Sun: 9:00 AM – 2:00 PM

Serving patients from: Bay Ridge, Dyker Heights, Bensonhurst, Sunset Park, Fort Hamilton, Staten Island, and surrounding South Brooklyn communities.

Schedule an Appointment at Bay Ridge

Southold, Long Island

56850 Main Rd, Southold, NY 11971

Phone: 800-778-3090

Hours:

• Mon: Closed
• Tue-Wed: 9:00 AM – 8:00 PM
• Thu: 9:00 AM – 7:00 PM
• Fri: Closed
• Sat: 9:00 AM – 3:00 PM
• Sun: Closed

Serving patients from: Southold, Greenport, Mattituck, Cutchogue, Orient, Riverhead, and North Fork Long Island communities

Schedule an Appointment at Southold

Massapequa, Long Island

83A Grand Ave, Massapequa, NY 11758

Phone: 800-778-3090

Hours:

• Mon: 9:00 AM – 5:00 PM
• Tue: 12:00 PM – 8:00 PM
• Wed: Closed
• Thu: 9:00 AM – 5:00 PM
• Fri: 9:00 AM – 5:00 PM
• Sat: By appointment
• Sun: Closed

Serving patients from: Massapequa, Massapequa Park, Seaford, Wantagh, Bellmore, Amityville, Farmingdale, and surrounding Long Island communities.

Schedule an Appointment at Massapequa

Accepted Insurance Plans

Allison Jaekle accepts a wide range of major insurance plans, including:

• Aetna
• Anthem Blue Cross Blue Shield / Empire Blue Cross Blue Shield
• Blue Cross Blue Shield (including Federal Employee Program)
• Cigna & Cigna-HealthSpring
• UnitedHealthcare & Oxford
• EmblemHealth (GHI)
• Healthfirst (NY)
• Medicare
• Fidelis Care (NY)
• Humana
• MagnaCare
• MetroPlus Health Plan
• Oscar Health
• 1199SEIU
• Surest Health Plans

Additional plans accepted. Patients are encouraged to contact SINY Dermatology to confirm coverage prior to their visit.

About SINY Dermatology (Skin Institute of New York)

The Skin Institute of New York is a leading dermatology group providing medical, surgical, and cosmetic dermatology services across New York. SINY Dermatology physicians combine academic excellence, clinical research, and patient-focused care to deliver advanced skin treatments tailored to each individual.