Our new, second location is a full-floor space at 4 West 58th Street and features a stunning view of Central Park! Dr. Robyn Gmyrek joins UnionDerm Central Park location permanently, and Drs. Anne Chapas, Claire Chang and Jennifer Chwalek are practicing part-time!


To our patients:
Under the guidance from public health authorities and our professional societies, we have put in place many measures to ensure the health and safety of our patients and our staff in order to resume patient care. Click here to see more details on these measures.
— The Physicians and Staff of UnionDerm. 

Medical procedures are performed personally by Dr. Chapas, Dr. MacGregor, Dr. Chwalek, Dr. Gmyrek, and Dr. Chang, all widely recognized as leading dermatologists in the world—not by a nurse, aesthetician, or other “physician extender.” Our support staff consists of fully certified nurses trained in dermatology, with extensive knowledge about the procedures they assist in. Each is assigned to a single patient at a time to ensure that all patient questions and concerns are fully addressed.

Dr. Anne Chapas is a dermatologist and dermatologic surgeon who specializes in laser surgery, Mohs micrographic surgery for the treatment of skin cancers, and cosmetic procedures. She is internationally acclaimed for her treatments, and applies the latest scientific research to deliver the best possible care and results. Learn more about Dr. Chapas.
Jennifer L. MacGregor, M.D. is a Board Certified dermatologist with fellowship training in cutaneous laser surgery and dermatologic procedures. Her expertise covers dermatologic surgery, injectables, laser procedures, skin tightening, sclerotherapy for leg veins, and body contouring and cellulite treatments. She is recognized as a world-class expert on Ultherapy.
Jennifer Chwalek, M.D. is a Board Certified dermatologist with fellowship training in procedural dermatology and in cutaneous laser surgery. She specializes in cosmetic and laser procedures, Mohs micrographic surgery, and non-invasive body contouring treatments. Dr. Chwalek is also particularly interested in the intersection of Eastern and Western medicine.
Yunyoung Claire Chang, M.D. is a board-certified and fellowship-trained cosmetic dermatologist who provides comprehensive medical and cosmetic dermatologic care for her patients. She specializes in cutaneous laser treatments, facial and body contouring, and injectable treatments. Her vast expertise includes skin brightening treatments for all skin types, laser skin rejuvenation with emphasis on treating pigmentation and acne scarring, a natural filler and botox aesthetic, skin tightening and facial/body contouring using novel techniques.
Robyn Gmyrek, M.D. is a Board Certified dermatologist that has received national recognition for her contributions to cosmetic dermatology, including Castle and Connolly America’s Top Doctors and New York Magazine’s Best Doctors 2013 to 2019.

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