UnionDerm is New York’s premier dermatology and skin rejuvenation center, providing outstanding medical care with professionalism and full attention to patient comfort. Here are some of the things that set us apart:


Cosmetic dermatology is an art as well as a science, and our physicians are known for their ability to achieve great natural results, without a look that reveals that cosmetic work was done.


In some dermatology and cosmetic surgery practices, non-physicians inject patients or operate lasers and other energy devices to administer treatments. While legal in New York (where no certification is required to operate a laser), we cannot condone this practice.

Even the best lasers and energy devices are just tools. The results and the risk of complications depend on the skill and training of the person operating them. The best results are achieved when the appropriate type and parameters of treatment are selected for each patient and adjusted as necessary throughout the procedure, and this requires the knowledge of the physiology of the skin and the functioning of the devices that comes from specialized medical training in laser devices that “extenders” such as nurses, medical assistants, aestheticians, etc. do not have. The same applies to injectables: facial injections greatly benefit from your physician’s medical training. Finally, while complications are rare, they are always a possibility, and an experienced physician is best qualified to recognize and address any adverse effects.

For the safety of our patients and the best results, at UnionDerm, all medical procedures are performed personally by our widely-recognized, board-certified dermatologists—not by a nurse, aesthetician, or other “physician extender.” Each of our physicians has several years of experience with the devices they use, often having consulted in their development or participated in the clinical trials that led to FDA approval.

Our physicians have been trained in the top medical schools and qualified for membership in Alpha Omega Alpha, the national honor medical society, by graduating at the top of their medical school classes.


We recognize that every patient has unique needs and goals. Our physicians specialize in treating all skin types and backgrounds including LGBTQIA+ and BIPOC patients. 

Transgender patients can have complications from aesthetic procedures because they seek care from unlicensed or untrained providers. It’s important to see an exceptionally trained board-certified dermatologist to manage risks associated with cosmetic procedures. Dr. Jennifer MacGregor caters to a wide patient base of LGBTQIA+ cosmetic dermatology patients and is a member of the World Professional Association for Transgender Health.

Our physicians are also experts in treating BIPOC patients. Dr. Nkem Ugonabo serves on the national leadership committee for the Skin of Color Society. Dr. Claire Chang is on the executive committee for the Korean American Medical Association and is an expert in skin of color and Asian beauty trends. Dr. Rishi Chopra is also a member of the Skin of Color Society.


Our medical staff consists of fully-certified nurses trained in dermatology and highly-qualified medical assistants, 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.


All lasers and devices are not equal. Dr. Chapas, Dr. MacGregor, Dr. Chwalek, Dr. Gmyrek, Dr. Chang, Dr. Howe, Dr. Ugonabo, Dr. Chopra and Dr. Petukhova are researchers with numerous peer-reviewed publications, active contributors to the development of new treatments and technologies, and big believers in evidence-based medicine that continuously evaluate new devices, many while still in development or as part of their clinical trials. We have more than 30 state-of-the-art lasers and energy devices and we have developed our proprietary treatment protocols to maximize efficacy and patient comfort. Having several devices for each condition allows us to select the treatment plan that is most likely to benefit each patient. We do not share our devices with other practices because lasers have sensitive optics and the ones that travel from practice to practice can easily fall out of calibration. Our on-site lab supports specialized procedures such as purification and injection of growth factors. We have the expertise, training and technology to design and deliver the best treatments for our patients.


We are located in very desirable and charming areas of New York including Union Square, near Central Park and in central Hamptons. Our facilities were designed by the internationally acclaimed architectural firm Studio a+i in stylish, comfortable spaces with extraordinary views and Italian furniture in a partnership with Cassina/Cappellini.

We are committed to the best available medical care for our patients, and we have invested in the resources necessary to achieve that.

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