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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.

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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.

Dr. Jeffrey Fromowitz MD, FAAD provides a wide variety of dermatology care to Boca Raton, FL area patients. Services include Body Contouring, Laser Treatments, Tattoo Removal, Laser Hair Removal, Skin Cancer treatment, Full Body Exams, Psoriasis treatment, Eczema treatment, Rosacea treatment, and Acne treatment.

Dr. Fromowitz earned his Bachelors of Science in Neuroscience and Behavioral Biology at Emory University. He then went on to attend the University Of Florida College of Medicine, where he graduated first in his class. Dr. Fromowitz completed his internship in Internal Medicine at Shands Hospital. He then completed a residency in dermatology and cutaneous surgery at Shands Hospital as well. In his last year of residency, he served as Chief Dermatology Resident. Dr. Fromowitz is a Diplomate of the American Board of Dermatology and is a Fellow of The American Society for Lasers in Medicine and Surgery, The American Society of Dermatologic Surgery, The American Society of Mohs Micrographic Surgery, and The American Academy of Dermatology. Call anytime to arrange an appointment with Dr. Fromowitz -- he looks forward to meeting new patients.

 

Kathleen Herne, MD, is a board-certified dermatologist and one of only fourteen fellowship-trained Mohs micrographic and dermatologic surgeons in Palm Beach County, certified through the American College of Mohs Surgery. She brings a unique combination of surgical precision, clinical expertise, and aesthetic artistry to her patients at Integrated Dermatology of West Palm Beach in West Palm Beach, Florida.

Dr. Herne earned her medical degree from the University of Texas at the Houston Health Science Center, followed by an internal medicine internship at Loyola University in Chicago. She then completed a clinical research fellowship in dermatology and virology at the University of Texas in Galveston and a dermatology residency at the University of Alabama in Birmingham. Her advanced fellowship training in Mohs surgery, laser treatments, and cosmetic dermatology was completed at the University of California, San Francisco.

Known for her compassionate care and meticulous attention to detail, Dr. Herne specializes in skin cancer treatment, Mohs surgery, and cosmetic dermatology, including procedures such as Botox, fillers (Radiesse, Sculptra, Restylane), collagen treatments, chemical peels, and laser skin resurfacing. She stays current with the latest techniques and technologies to deliver natural, effective results.

Dr. Herne is a member of the American Academy of Dermatology, American Society for Dermatologic Surgery, Florida Society for Dermatologic Surgery, and the American Society for Laser Medicine and Surgery. She proudly serves patients across Palm Beach County with personalized, results-driven care.

Jordana Herschthal, M.D., is a board-certified dermatologist, and a diplomate of the American Board of Dermatology. In addition to general dermatology, she is an expert in cosmetic treatments, dermal fillers, laser procedures, dermatologic surgery, and skin cancer management, including Mohs surgery. Dr. Jordana Herschthal joined forces with her father, Dr. David Herschthal, at The Herschthal Practice in Boca Raton, Florida.

Prior to joining the practice, Dr. Herschthal completed her:

• BA degree from Brown University in Providence, Rhode Island
• Medical degree from the University of Miami’s Miller School of Medicine
• Medical internship at Columbia University’s St. Lukes Roosevelt Hospital in Manhattan, New York
• Dermatology residency at University of Miami-Jackson Memorial Hospital in Miami (where she earned the Excellence in Dermatologic Surgery Award)

Like her father, Dr. Jordana is passionate about educating the future physicians in her specialty. She’s an associate clinical professor at University of Miami Department of Dermatology and Cutaneous Surgery. Along with her father, Dr. Jordana is privileged to teach at UM/Jackson Memorial Hospital. She has also been published in several medical journals and magazines.

Dr. Herschthal is a member of the:

• American Academy of Dermatology
• American Society for Dermatologic Surgery
• Women’s Dermatologic Society
• American Society for Mohs Surgery

Latanya Benjamin, MD is a renowned Pediatric Dermatologist and former Professor at Stanford University. Nationally recognized as an expert in pediatric laser and surgery, acne and sun safety with media coverage in the Wall Street Journal, NY Times, LA Times, Parents, Elle, Huffington post, and USA Today. Dr. Benjamin holds many honorary positions and was awarded the inaugural Women’s Dermatologic Society (WDS) Volunteer of the Year and currently sits on the WDS Board of Directors. She is a published author of two medical textbooks. Dr. Benjamin is a mother and passionate advocate for women and children. She serves on medical advisory boards and is a consultant for select industry, including an ambassador role with Dove. Dr. Benjamin is a sought after speaker and a respected leader in her field.

Joseph F Seber, MD is a Board-Certified Dermatologist at Luminary Dermatology.  Dr Seber sees patients at the North Miami Beach, Florida location.

After earning his undergraduate degree from Rutgers and his medical degree from Boston University of Medicine, Dr Seber completed his Internship in Internal Medicine at U.S Public Heath Servies Hospital University of Maryland Medical Center.  He completed his Residency at University of Iowa Hospitals and Clinics.

He will continue seeing patients in the same location in North Miami Beach where he has practiced since 1985.

Dr Seber is a member of several medical associations including the American Medical Association, The American Academy of Dermatology and the Dade County Medical Association.

Phyllis Skolnik, MD, is a Board-Certified Dermatologist at Luminary Dermatology. The dermatology practice has 10 locations, and Dr. Skolnik sees patients at the Kendall office in Miami, Florida.

After earning her medical degree from New York Medical College (NYMC) in Valhalla, New York, Dr. Skolnik underwent residency at The University of Miami’s School of Medicine in Miami.

Following these accomplishments, she completed a year-long fellowship training in treating acne vulgaris. Since then, Dr. Skolnik has been practicing dermatology for nearly 50 years and applying her dermatological skills in Miami.

Dr. Skolnik has been blazing trails in the world of dermatology for over 50 years, most of which she spent building a thriving dermatology practice, Phyllis Skolnik, MD, PA.

Now part of Luminary Dermatology’s team of expert providers, Dr. Skolnik plans to continue seeing patients for the remainder of her career in the same location in Miami where she’s spent the past five and a half years.

The Kendall office in Kendall’s MCH Medical Center will now carry the name Luminary Dermatology. Still, patients will be happy to see the same familiar faces they’ve come to know over the years.

Dr. Skolnik offers the following procedures:

• Medical Dermatology
• Acne Treatment
• Skin Cancer Treatment

She also treats various dermatological issues, including benign and malignant moles, skin tags, cysts, and skin conditions such as acne, warts, molluscum, eczema, psoriasis, and many others.

Dr. Brazen is a native Floridian from Clearwater, FL. He obtained his undergraduate degree in Biological Sciences from Florida State University before moving back home to complete his Master's degree in Medical Sciences at the University of South Florida. Dr. Brazen went on to complete medical school at Nova Southeastern University, and subsequently stayed in Southeast Florida to complete his three-year Dermatology Residency at Broward Health Medical Center.

There he received extensive training in general and complex medical dermatology, surgical dermatology, Mohs micrographic surgery, injectable fillers, lasers, and Botox. During his residency, Dr. Brazen was elected to serve as Academic chief resident, an honor awarded to the top residents in their class. During his residency, Dr. Brazen published papers in many academic journals and was recently elected to serve on the Board of Directors for the Florida Academy of Dermatology. Additionally, he serves as a delegate for the Florida Medical Association. Outside of the office, Dr. Brazen is an avid golfer, scuba diver, and fisherman. He loves to spend time with his family and their pet Sheepadoodle, Goose.

Ashley Llera is a board-certified Physician assistant who brings not only extensive dermatology experience but also a deep understanding of her native South Florida community. Bilingual in English and Spanish, she is committed to providing exceptional care to patients from diverse backgrounds.

Ashley is a graduate of the University of Miami, where she earned her degree in 2012 and was an active member of the TriBeta Biological Honor Society. She went on to complete her Physician Assistant education at Florida International University, graduating in 2017 as part of the inaugural class. Ashley’s accomplishments during her time at FIU include Capstone Research Gold Level Excellence, Second Overall Clinical Year Performance, and the Peer Award of Excellence.

With over 7 years of experience in dermatology, Ashley has worked alongside Dr. Joseph Seber in Medical, Surgical, and Cosmetic Dermatology. Her clinical expertise and compassionate approach to patient care have earned her the trust of many.

Ashley is also a Diplomate Fellow with the Society of Dermatology Physician Assistants (SDPA) and serves as a preceptor for Physician Assistant students from Barry University, helping to shape the future of dermatology practice.

Nadia is a board-certified Family Nurse Practitioner with a passion for providing quality, compassionate care. With a background in nursing and advanced clinical training, she helps patients manage both everyday health concerns and long-term conditions.

Born and raised in upstate New York, Nadia earned her Bachelor of Science in Nursing (BSN) from St. John Fisher College of Nursing. She then moved to Florida and earned her Master of Science in Nursing (MSN) from Keiser University and holds certification from the American Nurses Credentialing Center (ANCC).

Before becoming a nurse practitioner, she gained valuable experience working as a registered nurse in dermatology, where she developed a solid foundation in medical skin care. After earning her MSN, she chose to continue working in dermatology as a nurse practitioner, building on the experience and passion developed during her years as a registered nurse in the specialty.

Outside of work, Nadia enjoys spending time with family and friends and being outdoors.

She is an active member of The American Association of Nurse Practitioners (AANP) and the National Academy of Dermatology Nurse Practitioners (NADNP).

George Glinos, MD, is a board-certified dermatologist serving patients at Dermatology of Miami in Miami and Miami Lakes, Florida. As a Fellow of the American Academy of Dermatology, he brings extensive experience in diagnosing and treating a wide range of skin conditions, including acne, eczema, psoriasis, alopecia, and skin cancer. Dr. Glinos also offers advanced cosmetic dermatology services, including Botox®, dermal fillers, and laser treatments.

Originally from Orlando, Dr. Glinos earned his undergraduate degree in biology from the University of Florida before completing his medical degree at the University of Miami Miller School of Medicine. He was inducted into the Alpha Omega Alpha Medical Honor Society and completed a prestigious research fellowship focused on chronic wound care. His postgraduate training includes an internal medicine internship at Jackson Memorial Hospital and a dermatology residency at the University of South Florida Morsani College of Medicine.

Throughout his career, Dr. Glinos has contributed to 11 peer-reviewed journal articles and several book chapters and has presented his work at national conferences. He is committed to staying at the forefront of dermatologic innovation and patient care.

Whether you’re seeking relief from a chronic skin condition or exploring cosmetic skin treatments, Dr. Glinos offers personalized, evidence-based care to help you look and feel your best.