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.
Lisa M. Gruson, MD, is a board-certified dermatologist and part of the medical team at the Skin Institute of New York (SINY®). Dr. Gruson practices medical and cosmetic dermatology and performs laser procedures at SINY’s® three offices, one in the West Village area of New York City and the others in the Bay Ridge and Park Slope areas of Brooklyn, New York.
After earning her undergraduate degree at the University of Michigan in Ann Arbor, Michigan, and graduating with Phi Beta Kappa honors, Dr. Gruson received her medical degree from the New York University School of Medicine in New York City. While in medical school, she earned the Marion B. Sulzberger Dermatology Award and membership in the prestigious Alpha Omega Alpha Honor Medical Society. She then completed her dermatology residency at the NYU Medical Center, serving as chief resident and receiving the Morris Leider Award for excellence in dermatology.
Dr. Gruson is a fellow of the American Academy of Dermatology and an active member of numerous professional medical organizations, including the New York State Medical Society, the American Contact Dermatitis Society, and the Dermatologic Society of Greater New York. She has conducted research and published numerous scholarly articles on dermatology topics, including skin allergies, her area of expertise, and she has presented these findings at national medical conferences.
As a clinical assistant professor at the NYU School of Medicine, Dr. Gruson teaches dermatology residents and also advises medical students who are considering the dermatology specialty.
Allison Jaekle is a Board Certified Physician Assistant specializing in medical and cosmetic dermatology. Allison was born and raised locally on Long Island. She attended Binghamton University for her undergraduate degree in History with a concentration in Public Health. She then attended Touro College for a Bachelor of Science in Health Sciences and a Master in Physician Assistant Studies, where she received the Leadership, Academic, and Clinical Achievement awards upon graduation.
She is currently an active member of the American Academy of Physician Assistants, New York State Society of Physician Assistants, and the Society for Dermatology Physician Assistants. Allison has always had a true passion for dermatology and is honored to be part of the SINY Dermatology team. Allison’s main goal is to restore the skin’s natural look of beauty via an individualized care plan for every patient.
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.
Ronald R. Brancaccio, MD, founded the Skin Institute of New York (SINY®) in 1979. He diagnoses and treats a wide variety of skin conditions at SINY’s® three offices in the West Village of New York City and the Bay Ridge and Park Slope areas of Brooklyn, New York.
After earning his medical degree from George Washington University School of Medicine in Washington, D.C., Dr. Brancaccio completed an internship at Lenox Hill Hospital in New York City. He then completed his residency in dermatology at the University of Oregon Health Sciences Center in Portland, Oregon.
Dr. Brancaccio is board-certified in dermatology, and he is a clinical professor at New York University School of Medicine in New York City. When he’s not tending to patients at SINY® or teaching future dermatologists, he lectures on dermatology-related topics and has authored more than 40 scholarly publications, primarily on the subject of skin allergies.
Currently serving on the board of directors of the American Contact Dermatitis Society and the New York State Society of Dermatology and Dermatologic Surgery, Dr. Brancaccio has also served as president of the New York Dermatologic Society, the Bay Ridge Medical Society, and the Dermatologic Society of Greater New York, He maintains active memberships in those professional organizations as well as the American Academy of Dermatology and the Annenberg Circle Committee for the Dermatology Foundation, which supports vital dermatology research. In addition, he is an honorary member of the Brazilian Society of Dermatology and the Canadian Dermatology Association.
Dr. Brancaccio has received numerous professional honors throughout his long and distinguished career. Besides multiple inclusions on the prestigious list of New York Magazine’s Best Doctors, the nonprofit Dermatology Foundation named him the 2014 Practitioner of the Year.
Sydney Liang, MD, is a board-certified dermatologist and fellow of the American Academy of Dermatology. She specializes in medical, cosmetic, and surgical dermatology with an emphasis on delivering compassionate, high quality, and patient-centered care. She has a special interest in the prevention and surgical management of skin cancers, the treatment of acne and acne scarring, rosacea, psoriasis, cosmetic injectables, and laser treatments and resurfacing.
With a strong educational background and rigorous training, Dr. Liang completed her undergraduate degrees in cell biology, genetics, and human development at the University of Maryland, earning early acceptance to the Phi Beta Kappa Honor Society as a Junior and graduating with the highest honors of summa cum laude. While earning her medical degree from New York University School of Medicine in New York City, Dr. Liang was elected as a member of the prestigious Alpha Omega Alpha Medical Honor Society and graduated top of her medical school class. She then completed her residency in dermatology at the Ronald O. Perelman Department of Dermatology at New York University Langone Health. While in residency, Dr. Liang earned multiple awards for academic excellence, leadership, and research and received the Morris Leider MD Award for the “Best All-around Resident” at the end of her training. Dr. Liang’s dedication to continuous learning and staying up-to-date with the latest advancements has enabled her to provide the most cutting-edge and evidence-based treatments to her patients.
Dr. Liang has a distinctive approach that places patients at the forefront. Her empathetic nature and exceptional communication skills create a comfortable environment where patients can openly discuss their dermatologic concerns. Her patient-centered approach ensures that treatment plans are tailored to each individual’s needs, whether addressing complex medical conditions, performing precise surgical procedures, or enhancing natural beauty through cosmetic procedures and interventions.
When Dr. Liang is not treating patients at SINY® or teaching future dermatologists at New York University School of Medicine, Dr. Liang has presented at many regional and national conferences and has authored numerous scholarly publications in the most prominent dermatology journals. Her commitment to sharing knowledge not only benefits fellow professionals but also underscores her dedication to elevating dermatological care for her patients and patients everywhere.
Dr. Regina Zambrano DiFiore is a board-certified dermatologist at the Skin Institute of New York (SINY®), where she sees patients at the Massapequa, Long Island office. Born and raised on the south shore of Long Island, Dr. Zambrano is honored to return to her community and provide expert dermatologic care to patients of all ages. She is trained in medical, surgical, pediatric, and cosmetic dermatology, and has advanced experience treating all skin types with a compassionate, personalized approach.
Dr. Zambrano graduated with honors from Stony Brook University, where she earned her Bachelor of Science degree in Biology with a specialization in Developmental Genetics. She went on to complete both her Medical degree and Master of Public Health degree simultaneously at Nova Southeastern University in Fort Lauderdale, Florida. Following medical school, she completed her Internship and Dermatology Residency at St. John’s Episcopal Hospital, where she served as a Chief Resident in her final year.
In her practice, Dr. Zambrano provides comprehensive care for conditions of the skin, hair, and nails, ranging from common dermatologic concerns to more complex disorders. She is extensively trained in cosmetic dermatology, including the use of neurotoxins, fillers, and lasers. With a strong belief in enhancing her patients’ natural beauty, she takes a thoughtful, minimalistic approach to aesthetics—tailoring treatment plans and skincare regimens to each individual’s unique needs and goals. Her philosophy centers on helping patients look and feel like the very best version of themselves.
Dedicated to forming lasting relationships with her patients, Dr. Zambrano strives to create an approachable and supportive environment where every patient feels truly cared for. She is passionate about educating her patients and empowering them to take part in their treatment journey. Her commitment to dermatology extends beyond the clinic—she stays current with the latest advances in the field to bring safe, effective, and innovative care to her community.
Outside of medicine, Dr. Zambrano enjoys spending time with her husband, their two young children, and their beloved Goldendoodle. She feels privileged to be serving the community where she grew up, and looks forward to providing high-quality dermatologic care to the families of Long Island for years to come.
Lisa Gavronsky, PA-C is a licensed Physician Assistant and 2014 Cum Laude graduate of Touro College's masters PA program. She also earned a BS in Marketing from Rutgers Business School. Lisa is passionate about Dermatology with a strong interest in healthy skin care, and adult and pediatrics. She is committed to providing all her patients with personalized attention and ensuring the best possible treatment outcomes.
Alexander Fogel, MD, is a highly-skilled dermatologist serving patients at Adult & Pediatric Dermatology Specialists in Trumbull and Westport, Connecticut.
Dr. Fogel is double board certified in both Dermatology and Micrographic Dermatologic Surgery (a.k.a. Mohs). He heads our surgical and reconstructive dermatology practice, which encompasses Mohs surgery, as well surgery for melanoma, squamous cell carcinoma, basal cell carcinoma, and benign lesions, such as lipomas and cysts.
Dr. Fogel was educated and trained at Caltech, Stanford, and Yale. He remains a clinical faculty member at the Yale University Department of Dermatology, and is responsible for educating dermatologists in training. He is also an accomplished researcher, with more than 50 published articles, chapters, and presentations at venues that include the Journal of the American Academy of Dermatology, the Journal of the American Medical Association, the New England Journal of Medicine Catalyst, the Harvard Business Review, and the Wall Street Journal. He has also served as an investigator for multiple clinical trials, ranging from pharmaceutical to basic science research.
Dr. Fogel has received numerous national and local honors and awards, including the President's Volunteer Service Award, the Gold Humanism in Medicine Honor Society Award, the Yale Hospital All for One Award, and the American Society for Dermatologic Surgery Scholarship. He has received grants from the American Skin Association and the American Society for Dermatologic Surgery, and he is an active member of the American Academy of Dermatology, the American Society for Mohs Surgery, the American Society for Dermatologic Surgery, the Royal Society of Medicine, and the Royal College of Physicians of Edinburgh.
Clinically, Dr. Fogel's interests are broad and include medical, surgical, pediatric, and cosmetic dermatology. During medical school at Stanford, he founded a free clinic for patients without health insurance and maintained a longitudinal pediatric dermatology clinic. During residency at Yale, Dr. Fogel was the resident lead for surgical, procedural, and cosmetic dermatology, managing resident education in these areas.
Outside of work, Dr. Fogel is happily married and has three children. He loves exploring New England, partaking in the culture of our nearby cities, and working on his small farm.
“Charming and friendly as always. Prompt and efficient. The office staff are also very professional without being too stuffy. I look forward to my next visit.”
Michael Noonan, MD, is board-certified in both pediatric and general dermatology. He treats patients at Adult & Pediatric Dermatology Specialists in Derby, Trumbull, and Westport, Connecticut.
Dr. Noonan graduated from Williams College magna cum laude with a degree in chemistry. He received his medical degree from the New York University School of Medicine and completed his internship at Yale University Hospital with a concentration in pediatrics. Dr. Noonan completed his dermatology residency at George Washington University School of Medicine.
He is on-staff at Bridgeport Hospital and a clinical dermatology instructor at Yale University School of Medicine.
Dr. Noonan has published articles and has been a guest lecturer. As a father of four, Dr. Noonan understands parents' concerns about their children's skin, especially when conditions such as rashes, eczema, warts, and acne flare up. Dr. Noonan treats adults and children with these conditions. He also treats moles and skin cancers.
At the practice, Dr. Noonan and the team see patients on an emergency basis, even on days when the office is busy.
“I have been going to see Dr Noonan for 12 years now. He is very thorough and efficient. His bedside manner is one of compassion and he lightens the moments with his wonderful humor. He has always taken time to explain things to me and to answer any questions I have. ”
Jason Wilder, DO, is a board-certified dermatologist. At Adult & Pediatric Dermatology Specialists in Trumbull and Westport, Connecticut, he provides patients with compassionate and effective care.
Dr. Wilder graduated from the University of Colorado with a degree in biology. He trained at the New York College of Osteopathic Medicine and did his internship at Suncoast Hospital. Dr. Wilder completed his residency in dermatology at St. Barnabas Hospital.
He has written several articles and has been a guest lecturer for the past 10 years. Dr. Wilder is on-staff at Bridgeport Hospital and the clinical instructor of dermatology at Yale University.
Dr. Wilder is the father of two boys and enjoys working with children and adults. He truly enjoys working with the adolescent population and has one of the largest acne practices in Connecticut.
Dr. Wilder is also one of the leading cosmetic dermatologists in Fairfield County. He specializes in cosmetic dermatology and is an expert in Botox®, Juvéderm®, laser treatment of blood vessels, and hair removal.
He has guided patients for years on the newest and best cosmetic products to prevent aging and skin cancer. Dr. Wilder also performs skin cancer screenings and treats various skin conditions, including eczema, psoriasis, and warts.
Mark Oestreicher, MD, is board-certified in dermatology and internal medicine. He treats patients at Adult & Pediatric Dermatology Specialists in Trumbull and Westport, Connecticut.
Dr. Oestreicher graduated from the Bronx High School of Science and Stony Brook University with a Bachelor of Science in biology. He earned his medical degree from Albany Medical College and interned at Albany Medical Center Hospital.
Dr. Oestreicher completed his residency in dermatology at UCLA Health Sciences Center, where he was among the first to use fillers, such as Juvéderm®.
Dr. Oestreicher wrote several articles and co-authored two books on skin care clues to internal illnesses. He often appears on cable TV and talk radio to discuss health and skin care issues.
Dr. Oestreicher performs laser treatment of brown spots and red spots. He also treats patients suffering from hair loss, skin cancer, and other skin disorders.
Dr. Oestreicher is on-staff at Bridgeport Hospital and a clinical dermatology instructor at Yale School of Medicine.
Brooke Hatfield, PA-C, is a board certified Physician Assistant. At Adult & Pediatric Dermatology Specialists in Derby and Trumbull, she provides compassionate, high quality care to all of her patients.
Brooke graduated with her Bachelor’s degree in Science from the University of Wisconsin-Madison followed by her Master’s degree of Medical Science in Physician Assistant Studies from Midwestern University.
Brooke previously worked in dermatology and aesthetics in the Chicagoland area since graduating from Physician Assistant school in 2020. Her passion for dermatology drives her to continuously educate herself on new research and treatments, and she specializes in treating a variety of skin conditions including eczema, pre-cancerous lesions, and acne. Brooke also has extensive cosmetic training in Botox, Juvaderm, microneedling, and the laser treatment of blood vessels and hair removal.
Providing care to underserved populations is very important to Brooke. While in PA school, she spent time on a Navajo reservation in New Mexico providing assistance in general surgery, educating patients about chronic illness, and providing care in a wound clinic. She will continue to pursue opportunities to provide for those in need as a new resident of Connecticut.
