Cardiologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Chiropractor providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dentist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dermatologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Family Physician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
OB-GYN providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Ophthalmologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Orthopedic Surgeon providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Pediatrician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Physical Therapist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Podiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Psychiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Robert Bacigalupi, MD, FAAD, is proud to be the Director of MOHS Surgery at All Island Dermatology, Plastic Surgery and Laser Center, serving Glen Cove and Garden City, New York.
He is board-certified in dermatology and dermatologic surgery, and he specializes in general dermatology, Mohs micrographic surgery for skin cancer patients, and facial reconstruction. He also practices cosmetic surgery, including laser therapy and injectable neurotoxins and fillers.
Dr. Bacigalupi is a clinical instructor at the Icahn School of Medicine at Mt. Sinai in New York City, where he previously completed his procedural dermatology fellowship. He received his medical degree from Tulane University’s School of Medicine, where he was honored with the Alpha Omega Alpha and the Oscar Creech Surgery Awards. He then served as chief resident at Tulane.
Dr. Bacigalupi stays active and interested in new research, and he’s authored many articles in peer-reviewed journals and book chapters, in both the medical and cosmetic dermatology fields.
Maria Joyce Rowena Bernabe, MD, is a dermatologist with Dermatology Associates of Central NJ in Old Bridge, Freehold, and Union, New Jersey.
Dr. Bernabe is licensed in family practice. She holds certification in radiation therapy of basal and squamous cell carcinoma of the skin. Dr. Bernabe is also certified in cosmetic procedures.
Initially trained in the Philippines, Dr. Bernabe graduated from Ateneo de Davao University, Davao Medical School Foundation with a bachelor’s degree in biology and Doctor of Medicine degree. In the United States, she studied in the Ghent Family Medicine Residency Program at Eastern Virginia Medical School in Norfolk, Virginia, where all her electives were in dermatology.
When she’s not working, Dr. Bernabe loves to spend time with her family and friends. She’s an avid reader and enjoys a wide range of music, including classical, jazz, and Filipino music. She enjoys photographing and arranging flowers and growing orchids. Sports are also a favorite, as she enjoys cheering on the NFL’s Indianapolis Colts and baseball’s New York Yankees
Dr. Alexander Shraga is a Board-Certified Dermatologist who has been in practice since completing his residency training in 2003. He studied medicine at the highly-regarded Johns Hopkins University School of Medicine in Baltimore, Maryland, earning his MD degree at one of the top medical schools in the country. He also earned a Master's in Public Health (MPH) from the Johns Hopkins University School of Public Health. He graduated from Hopkins with academic honors and was inducted into the Delta Omega honor society. Following medical school, he performed his Internship in Internal Medicine at Albert Einstein College of Medicine / Long Island Jewish Medical Center and completed his Residency in Dermatology at the New York Medical College program.
Dr. Shraga has received numerous awards and honors throughout his education and training. He has co-authored a textbook chapter and has published articles in the Journal of the American Academy of Dermatology and the Journal of Skin and Aging. He has delivered presentations at the New York Academy of Medicine and at the annual national meeting of the American Academy of Dermatology.
On staff at Princeton Medical Center, he has served as a consultant on-call to the hospital and emergency room and has given lectures to resident physicians and medical students. He has also served as Section Chief, Section of Dermatology, Department of Medicine.
Dr. Shraga is a Diplomat of the American Board of Dermatology; Fellow of the American Academy of Dermatology; American Society for Dermatologic Surgery; Affiliate Member of the American Society for Mohs Surgery; Member of the International Society of Teledermatology; American Acne and Rosacea Society; and National Psoriasis Foundation.
He has been named Top Doctor by New Jersey Monthly Magazine; Castle Connolly/New York Magazine; and NJ Top Docs for several years.
He lives in New Jersey with his wife and 4 children. Outside of work, he likes to exercise, go on hikes (with proper sun protection of course!), read, learn new things, and spend time with his family.
Adam Nabatian, MD, FAAD, FACMS, is a board-certified dermatologist practicing at Integrated Dermatology of NJ, located in Spotswood, NJ.
Dr. Nabatian completed his undergraduate studies at New York University, graduating Magna cum laude with honors. He then attended UMDNJ-Robert Wood Johnson Medical School and performed his residency in Dermatology at the Albert Einstein College of Medicine. He then went on to complete an additional Mohs/Procedural Dermatology Fellowship at the Icahn School of Medicine at Mount Sinai Medical Center in New York, NY, where he continues to serve as a clinical Instructor. Dr. Nabatian is also a clinic instructor at Montefiore Medical Center, where he teaches medical students and residents.
Dr. Nabatian has received numerous honors and awards and has contributed to the field with his research, publications, and presentations. He is a member of the American Academy of Dermatology, American Society for Dermatologic Surgery, and American College of Mohs Surgery. At Integrated Dermatology of NJ, his focus is on Mohs Micrographic Surgery for skin cancer removal.
Aton M. Holzer, MD, FAAD, FACMS, is a seasoned Mohs surgeon who is the Director of Mohs Surgery in the Department of Dermatology at Tel Aviv-Sourasky (Ichilov) Medical Center in Tel Aviv, Israel, a major academic hospital in the heart of a bustling metropolis, where he supervises a busy Mohs unit with three surgeons, residents and student rotators, and also serves as director of the American College of Mohs Surgery Micrographic Surgery and Dermatologic Oncology (MSDO) fellowship program.
Dr. Holzer was born and raised in Queens, New York. He completed his undergraduate studies at Yeshiva University, graduating summa cum laude, and went on to complete a master's degree in modern Jewish history. He then attended medical school at Weill Medical College of Cornell University, where he graduated with an M.D. with Honors in Research, and where he was awarded the prestigious “Good Physician” award. He completed his internship in internal medicine at Columbia-Presbyterian Hospital, a four-year Research Track residency in dermatology at the University of Alabama-Birmingham, and a fellowship in Mohs Surgery and Procedural Dermatology at The Methodist Hospital in Houston, Texas under the tutelage of Leonard H. Goldberg, MD. In the past, he has worked as a dermatologist and Mohs surgeon in both South Miami and Pembroke Pines, Florida and as a part-time teledermatology consultant for Refuah Health Center in Rockland County, New York.
Since 2015, he has divided his time between Israel and the United States. He commutes back to the U.S. one week per month to treat Mohs patients in our Spotswood, NJ office, as well as numerous other offices in the Northeast, mostly in communities that are relatively underserved by Mohs surgeons. He is a fellow member of the American College of Mohs Surgery and the American Academy of Dermatology, and is a member of the Israel Medical Association. Dr. Holzer has authored a published chapter in a dermatology textbook and has authored and co-authored dozens of articles published in a variety of peer-reviewed journals. He has delivered talks and his work has been presented at national and international Mohs and dermatology conferences. He lives in Beit Shemesh, Israel with his wife and six children.
Irina Milgram, PA-C, is a certified physician assistant at Integrated Dermatology of NJ, located in Spotswood, NJ.
Irina received her bachelor's degree in biology from Bar-Ilan University in Tel-Aviv, Israel. She graduated from the Physician Assistant Program at UMDNJ School of Health-Related Professions, one of the top programs in the country.
Prior to joining Integrated Dermatology of NJ, Irina worked in interventional cardiology catheter labs for seven years and in private practice with an endocrinologist for one year. She trained extensively in dermatology, which has been an important part of the practice since 2008.
Irina was selected "America's Best in Medicine 2019" in recognition of her dedication and commitment to excellence in advancing medicine and providing quality patient care.
To schedule an appointment with Irina or another member of the team at Integrated Dermatology of NJ, call the office or using the online booking feature today.
Sarah Esposito, PA-C, is a certified physician assistant at Integrated Dermatology of NJ, located in Spotswood, NJ.
Sarah received her bachelor's degree in biological sciences from the University of Delaware, where she earned a spot on the Dean's list. She then graduated with a master's degree in Physician Assistant Studies from Seton Hall University, where she was awarded membership in the prestigious Alpha Eta Honors Society, the National Honors Society for Allied Health Practitioners.
Prior to joining Integrated Dermatology of NJ, Sarah worked in emergency medicine for over three years. She has trained extensively in dermatology and has been an integral part of our practice since joining in 2014. In addition to medical dermatology, Sarah is skilled in the surgical removal of skin lesions.
To schedule an appointment with Sarah or another member of the Integrated Dermatology of NJ team, call the office or using the online booking feature today.
Lainey Ortiz, PA-C, is a board-certified physician assistant at Integrated Dermatology of NJ, located in Spotswood, NJ.
Mrs. Ortiz received her Bachelor of Science in Psychology from The College of William and Mary and her Master of Science in Physician Assistant Studies from LIU in Brooklyn, New York. She is a member of The American Academy of Physician Assistants and The Society of Dermatology Physician Assistants.
Mrs. Ortiz specializes in treating and educating patients about various skin conditions, including but not limited to acne, eczema, rosacea, fungal infections, skin cancer, and warts. She takes pleasure in discussing skincare regimens and cosmetic treatments tailored to each individual’s skin matters. Acne and rosacea are two conditions she focuses on treating as she personally has encountered these difficult skin obstacles.
When Lainey isn’t treating patients, she loves to create fashionable outfits and design interiors. You can also find Lainey dancing salsa with her husband and venturing to the park with her rescue family dog.
“I understand that the importance of dermatology is beyond skin deep. It is my motivation to help my patients look and feel their absolute best,” says Mrs. Ortiz.
“Entiendo que la importancia de la dermatología va más allá de la profundidad de la piel. Es mi motivación ayudar mis pacientes a verse y sentirse lo major posible,” dice la señora Ortiz.
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.
Michael Tassavor, MD, MS, is a board-certified dermatologist and attending physician at MDCS: Medical Dermatology and Cosmetic Surgery withoffices 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.
Dr. Michael Kurzman is a respected, board-certified dermatologist practicing in Staten Island, New York; near Rossville and Pleasant Plains. From his offices, he specializes in the treatment of skin conditions including acne, psoriasis, mole removal, hyperhidrosis and offers anti-aging treatments involving Botox and fillers.
Dr. Kurzman earned his medical degree from New York Medical College in 1980 after completing his undergraduate education at Yeshiva University. His post-graduate training included an internal medicine internship and residency at Maimonides Medical Center and a dermatology residency at New York Medical College.
Dr. Michael Kurzman has been in practice since 1986 serving Staten Island and the surrounding area. He is dedicated to helping patients enjoy youthful, healthy skin. Dr. Kurzman's practice offers a combination of medical dermatology and cosmetic skin care treatments. Our approach to medical and cosmetic dermatology is the same. He collects as much information as possible, discusses possible procedures, and moves forward with the most straightforward solution tailored to your particular needs and concerns. Dr. Kurzman works closely with each patient to develop an individualized plan of treatment and strives to make your experience easy and comfortable.
Dr. Kupetsky specializes in general dermatology, dermatologic surgery, and cosmetic dermatology. She is board certified in dermatology.
Born and raised in New York City, Dr. Kupetsky completed her B.A. at Rutgers-NJIT and medical school in Rowan-SOM. She completed a family medicine residency at St. Joseph's hospital in Philadelphia, a Masters in Pharmacology at Thomas Jefferson University, and a Dermatopharmacology Fellowship at the University of Pittsburgh Medical Center. Dr. Kupetsky completed her dermatology residency in Ohio in 2016 and has worked as an employee for a large dermatology company for about two years before deciding to start her own private practice.
She speaks English and Spanish, lives in NJ, and enjoys golfing, jogging, and spending time with family.
* Please note that Maniya Health Medical Group does not employ Dr. Kupetsky. She is employed by Wellness Dermatology in Lawrenceville, NJ. Patients should contact Wellness Dermatology's offices directly for all questions concerning their Dermatology treatment at (609) 337-7643.
Board-Certified Dermatologist | Acne, Hair Loss & Medical Dermatology Specialist
Dr. Peter Saitta is a highly regarded board-certified dermatologist at the Skin Institute of New York (SINY Dermatology), known nationally and internationally for his expertise in acne, hair loss, contact dermatitis, and complex medical dermatology. He treats both adult and pediatric patients, combining advanced clinical research experience with compassionate, patient-centered care.
Dr. Saitta’s academic background and leadership training distinguish him as a leader in modern dermatology:
Bachelor of Arts – New York University (NYU)
Doctor of Osteopathic Medicine – University of Medicine and Dentistry of New Jersey
Dermatology Residency (Chief Resident) – Affiliated with Michigan State University
Recipient of national awards for leadership and academic excellence
During his residency, Dr. Saitta trained under a world-recognized authority in acne, where he also served as Clinical Research Director on multiple acne treatment studies. His work contributed to the development and refinement of some of the most advanced acne therapies available today—innovations he now brings directly to his patients at SINY Dermatology.
Clinical Expertise & Special Interests
Dr. Saitta provides comprehensive medical dermatology care with particular focus on:
Acne treatment (teen and adult acne, hormonal acne, treatment-resistant acne)
Hair loss and scalp disorders
Contact dermatitis and complex rashes
Hand, face, and scalp rashes
Skin cancer screening, diagnosis, and treatment
Pediatric dermatology
Research, Publications & National Leadership
Dr. Saitta is deeply involved in advancing the field of dermatology through research, education, and professional leadership:
Member, American Osteopathic College of Dermatology
National committee member, Dermatology Resident In-Service Examination
Recognized author and subject-matter leader in contact dermatitis in the Yearbook of Dermatology
International lecturer on acne, hair loss, and the psychological effects of skin disease
Author of numerous peer-reviewed publications, many widely available online
He is also joining the Dermatology Residency Program at St. Barnabas Hospital in New York, where he will help train the next generation of dermatologists.
Patient Experience & Satisfaction
Patients frequently highlight Dr. Saitta’s thorough approach, clear communication, and ability to treat complex or long-standing skin concerns with leading-edge yet practical solutions.
Convenient Locations in New York
Dr. Saitta sees patients at multiple SINY Dermatology locations across Brooklyn and Long Island, providing convenient access to expert dermatologic care for surrounding neighborhoods and communities. Patients can easily request an appointment with Dr. Peter Saitta online using the location scheduling links below.
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.
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, Carroll Gardens, Cobble Hill, Downtown Brooklyn, and surrounding neighborhoods.
Dr. Saitta 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
Humana
Fidelis Care (NY)
Oscar Health
MetroPlus Health Plan
1199SEIU
Additional plans accepted. Please contact SINY Dermatology to confirm coverage prior to your 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.
Dr. Rebeca Teplitz is a board-certified dermatologist specializing in medical, surgical, and cosmetic dermatology. She provides expert care for a diverse range of skin, hair, and nail conditions for patients of all ages.
Dr. Teplitz graduated magna cum laude from the George Washington University with a degree in cognitive neuroscience and a minor in business administration. She earned her medical degree from the New York Institute of Technology College of Osteopathic Medicine. She went on to complete her internship in Family Medicine and her Dermatology Residency at St. John's Episcopal Hospital, where she excelled as Chief Resident.
Dedicated to continuous learning and advancement in dermatology, Dr. Teplitz regularly contributes to research and has authored numerous articles in peer-reviewed journals. She serves on the editorial board for SKIN The Journal of Cutaneous Medicine and is an active member of the American Academy of Dermatology. Dr. Teplitz also dedicates time to educating the next generation of dermatologists as a Clinical Instructor at NYU.
With a patient-centered philosophy, Dr. Teplitz focuses on creating personalized care plans that aim to boost confidence and comfort, while enhancing the natural beauty of her patients. Her commitment ensures every patient feels fully supported throughout their treatment journey, helping them meet their unique needs and goals.
Beyond her clinical practice, Dr. Teplitz enjoys spending time with her family, practicing Pilates, and immersing herself in the vibrant culture of New York City. She stays up-to-date with the latest trends in dermatology and skincare to bring the most effective treatments to her patients.
Dr. Teplitz looks forward to welcoming you and working together to achieve healthy, glowing skin so you can feel your best, both inside and out!
Dr. Regina Zambrano DiFiore is a board-certified dermatologist at the Skin Institute of New York (SINY®), providing comprehensive dermatologic care at the Massapequa, Long Island location. Born and raised on the South Shore of Long Island, Dr. Zambrano DiFiore is proud to serve the community she calls home, caring for patients of all ages with a compassionate, highly personalized approach.
She is trained in medical, pediatric, and cosmetic dermatology, with advanced experience treating all skin types. Patients appreciate her thorough evaluations, clear communication, and commitment to developing treatment plans that align with each individual’s needs and goals.
Dr. Zambrano DiFiore’s academic excellence and leadership background reflect her dedication to high-quality, evidence-based dermatologic care:
Bachelor of Science in Biology (Honors) – Stony Brook University Specialization: Developmental Genetics
Doctor of Osteopathic Medicine (DO) – Nova Southeastern University, Fort Lauderdale, FL
Master of Public Health (MPH) – Nova Southeastern University
Internship & Dermatology Residency – St. John’s Episcopal Hospital Chief Resident, Final Year
Her dual medical and public health training allows Dr. Zambrano DiFiore to approach dermatology with a broad, patient-centered perspective that emphasizes both treatment and long-term skin health.
Clinical Expertise & Special Interests
Dr. Zambrano DiFiore provides comprehensive care for conditions affecting the skin, hair, and nails, including both common and complex dermatologic concerns. Her areas of focus include:
Medical dermatology for acute and chronic skin conditions
Pediatric dermatology
Skin cancer screening and early detection
Hair and scalp disorders
Nail conditions
Cosmetic dermatology, including:
Neurotoxins (Botox® and similar treatments)
Dermal fillers
With a thoughtful, minimalistic approach to aesthetics, she focuses on enhancing her patients’ natural beauty—creating treatment plans that are subtle, balanced, and tailored to individual goals. Her philosophy centers on helping patients look refreshed, confident, and like the best version of themselves.
Patient-Centered Philosophy
Dr. Zambrano DiFiore is deeply committed to building long-term relationships with her patients. She strives to create an approachable, supportive environment where patients feel heard, respected, and actively involved in their care.
She is passionate about patient education, empowering individuals to understand their conditions and treatment options so they can confidently participate in their dermatologic journey. Dr. Zambrano DiFiore remains actively engaged with the latest advancements in dermatology to ensure her patients receive safe, effective, and innovative care.
Patient Experience & Satisfaction
Patients consistently describe Dr. Zambrano DiFiore as attentive, knowledgeable, and genuinely caring. Many highlight her ability to listen closely, explain treatment options clearly, and follow up personally to ensure optimal outcomes.
Convenient Location in Long Island
Dr. Zambrano DiFiore sees patients at the SINY Dermatology Massapequa office, serving families and individuals throughout the South Shore of Long Island.
Massapequa, Long Island
83A Grand Ave, Massapequa, NY 11758 Phone: 800-778-3090
Hours:
Mon, Thu & Fri: 9:00 AM – 5:00 PM
Tue: 12:00 PM – 8:00 PM
Wed: Closed
Sat: By appointment
Sun: Closed
Serving patients from: Massapequa, Massapequa Park, Seaford, Wantagh, Bellmore, Amityville, Farmingdale, and surrounding Long Island communities.
Dr. Zambrano DiFiore accepts many major insurance plans commonly used throughout Long Island and New York, including:
Aetna
Anthem Blue Cross Blue Shield / Empire Blue Cross Blue Shield
Blue Cross Blue Shield
Cigna & Cigna-HealthSpring
UnitedHealthcare & Oxford
EmblemHealth (GHI)
Healthfirst (NY)
Medicare
Humana
Fidelis Care (NY)
AvMed
1199SEIU
Multiplan PHCS
Additional plans may be accepted. Please contact SINY Dermatology to confirm coverage prior to your visit.
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. SINY Dermatology physicians combine academic excellence, advanced clinical training, and patient-focused care to deliver high-quality, individualized treatment for every patient.
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.
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.
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.
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.
Dr. Costner McKenzie is a board-certified dermatologist at the Skin Institute of New York (SINY®), providing comprehensive dermatologic care to adult and pediatric patients in Manhattan. With expertise in both medical and cosmetic dermatology, Dr. McKenzie combines academic excellence, research leadership, and compassionate patient care to deliver individualized, evidence-based treatment plans.
Dr. McKenzie’s academic and clinical training reflect a deep commitment to excellence:
Bachelor’s Degree in Human Biology – Stanford University
Doctor of Medicine (MD) – Northwestern University Feinberg School of Medicine
Inducted into the prestigious Alpha Omega Alpha Honor Medical Society
Dermatology Residency (Chief Resident) – New York University
At Northwestern, Dr. McKenzie’s academic performance and dedication to medicine earned him membership in Alpha Omega Alpha, recognizing exceptional academic achievement and professionalism. During residency at NYU, he refined his diagnostic, surgical, and cosmetic skills under nationally recognized leaders in dermatology and served as Chief Resident in his final year.
Clinical Expertise & Special Interests
Dr. McKenzie provides comprehensive dermatologic care with special focus on:
Eczema and inflammatory skin disorders
Acne and acne scarring
Hair loss and scalp conditions
Skin cancer screening and prevention
Cosmetic dermatology and injectables
Pediatric dermatology
His clinical and research interests also include health disparities in dermatology, reflecting his commitment to equitable and inclusive skin care for patients of all backgrounds
Dr. McKenzie is known for combining scientific rigor with a highly personalized approach, ensuring each patient feels heard, supported, and confident in their treatment plan.
Research, Publications & Academic Leadership
Dr. McKenzie is a well-published author with research featured in respected dermatology journals. He has presented his work at national and international meetings, contributing to advancements in the understanding and treatment of eczema, acne, hair loss, and dermatologic health disparities
He remains actively involved in medical education and is committed to mentoring and training future dermatologists.
Active Member, American Academy of Dermatology
Contributor to peer-reviewed dermatology literature
National and international presenter
Patient Experience & Satisfaction
Patients consistently describe Dr. McKenzie as personable, knowledgeable, and exceptionally attentive. Many highlight his outstanding bedside manner, noting that they never feel rushed and always feel fully heard. He is frequently praised for clearly explaining diagnoses and treatment options, providing structured care plans, and ensuring patients leave feeling confident and informed.
Patients also commend the professionalism and friendliness of the SINY team, efficient scheduling, and welcoming office environment
Patient Experience & Satisfaction
Patients consistently describe Dr. McKenzie as personable, knowledgeable, and exceptionally attentive. Many highlight his outstanding bedside manner, noting that they never feel rushed and always feel fully heard. He is frequently praised for clearly explaining diagnoses and treatment options, providing structured care plans, and ensuring patients leave feeling confident and informed.
Patients also commend the professionalism and friendliness of the SINY team, efficient scheduling, and welcoming office environment.
Convenient Locations in New York
Dr. McKenzie sees patients at two SINY Dermatology locations in Manhattan, offering convenient access to expert dermatologic care.
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
ri: 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.
1000 Park Ave, New York, NY 10028 Phone:800-778-3090
Hours:
on-Tue: 9:00 AM – 5:00 PM
Wed: 12:00 PM – 8:00 PM
Thu: 9:00 AM – 5:00 PM
Fri: Closed
Sat: 10:00 AM – 3:00 PM
Sun: Closed
Serving patients from: Upper East Side, Carnegie Hill, Lenox Hill, Yorkville, Midtown East, Central Park East, and surrounding Manhattan neighborhoods.
Dr. McKenzie 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
Oscar Health
MetroPlus Health Plan
MagnaCare
1199SEIU
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.
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.
/assets/images/provider/photos/1971417.png)
/assets/images/provider/photos/1971417.png)
/assets/images/provider/photos/2501398.jpg)
/assets/images/provider/photos/2501398.jpg)
/assets/images/provider/photos/1366198.jpg)
/assets/images/provider/photos/1366198.jpg)
