Stuart Zweibel, M.D., PhD.

Dr. Zweibel is a board certified dermatologist and dermatologic surgeon specializing in skin cancer, laser surgery and cosmetic dermatology.

Dr. Zweibel graduated from Cornell University and did his graduate work at Temple University School of Medicine and Harvard School of Public Health earning a PhD in Microbiology and Immunology. He graduated from Mount Sinai School of Medicine and completed his residency at Brown University. He then did a fellowship in Mohs and Dermatologic Surgery under Dr. Mohs in the department of Surgery at the University of Wisconsin Hospital.

Dr. Zweibel has taught at NYU School of Medicine as a Clinical Assistant Professor and served as Chief of the Division of Dermatology at Northern Westchester Hospital from 1999 to 2007.

Dr. Zweibel has been cited on several occasions in the Best Doctors issues of New York Magazine and Westchester Magazine.

Athena Kaporis, M.D.

Athena G. Kaporis, M.D. graduated magna cum laude from Barnard College where she was elected to the Phi Beta Kappa Honor Society. She then received her medical degree and pursued a medical internship at New York University School of Medicine.

She completed her Dermatology Residency at the State University of New York Health and Science Center in Brooklyn. She has conducted research in immunology and has published several articles in peer-reviewed medical journals regarding dermatologic pathology.

Dr. Kaporis has appeared on MSNBC television discussing skin cancer and skin care. She has been in private practice for many years specializing in both medical and cosmetic dermatology, including laser surgery and tumescent liposuction.

She is a member of the American Academy of Dermatology, American Society of Dermatologic Surgery, American Society for Laser Medicine & Surgery and the Women's Dermatology Society.

Meredith Kosann, M.D.

Meredith Klein Kosann, M.D. is a board-certified dermatologist who specializes in medical dermatology, laser surgery and cosmetic dermatology. Dr. Kosann graduated magna cum laude from the University of Pennsylvania, where she was elected to the Phi Beta Kappa honor society. She earned her medical degree from New York University Medical School where she was selected to join Alpha Omega Alpha, a national medical honors society.  Upon graduation, she was awarded with the Maurice Freiman Memorial Award, the Medical Women's Association Citation, and the Hippolyte M. Wertheim Award for excellence in academic achievement.

Dr. Kosann completed her dermatology residency at NYU, where she served as chief resident. Upon graduation from residency, Dr. Kosann was awarded with the Morris Leider award for excellence in dermatology. In addition to extensive research in the areas of cutaneous oncology and allergic contact dermatitis, Dr. Kosann has published several articles in peer-reviewed medical journals about a variety of dermatologic diseases and treatments. She is a fellow of the American Academy of Dermatology and a member of the American Society of Dermatologic Surgery. Dr. Kosann lives in Westchester with her husband and four boys.

Ross Zeltser, M.D.

Dr. Zeltser is a board-certified dermatologist and dermatologic surgeon. He is a graduate of Columbia University with a degree in biochemistry. He received his medical degree from University of Rochester School of Medicine, where he was inducted into Alpha Omega Alpha, the national honor medical society. This was followed by an internal medicine internship at Lenox Hill Hospital in New York City, where he was elected Outstanding Intern of the Year. He received his dermatology residency training at Boston University and Tufts – New England Medical Centers where he was named Chief Resident. Following residency Dr. Zeltser completed a Dermatologic and Mohs Surgery Fellowship at Tufts – New England Medical Center and served as a staff physician at Harvard Vanguard Dermatology Associates in Boston.

Dr. Zeltser is a Fellow of the American Academy of Dermatology, American Society for Dermatologic Surgery, and the American College of Mohs Micrographic Surgery. He is currently a Clinical Instructor at Columbia University's Department of Dermatology.

Kelly Christman, RPA-C

Kelly Christman is a board certified Physician Assistant. She received her BS in Biology from SUNY Stony Brook in 1998 and her PA degree at SUNY Health Sciences Center at Stony Brook in 2001. She has been in dermatology practice for the past eight years. Prior to transitioning into dermatology, she practiced internal medicine.

Kelly is proficient in general and cosmetic dermatology. She is a member of the American Academy of Physicians Assistants and the Society for Dermatology Physician Assistants.

Lisa Biener, Office Manager

I have been part of this practice since “opening day” on July, 7, 1993, and with each year, there is always something new and exciting in the field of dermatology.

This practice is constantly evolving and growing. Our physicians stay up to date and current by evaluating new techniques and equipment, attending advanced training sessions and continuing their medical education. Their passion and dedication is contagious and has encouraged me to continually strive to do my best for our patients and staff.

In addition to managing the day-to-day office operations, it is my responsibility to coordinate scheduling Mohs micrographic surgery and tumescent liposuction. I am a certified medical assistant, a Mohs histotechnician and a member of ADA/M (Association of Dermatology Administrators and Managers). You can speak with me directly regarding any concerns or questions you have pertaining to our practice. I can be especially helpful with questions about cosmetic procedures, as I have been lucky enough to have had them all! You can always reach me through our website or call the office.

It’s my pleasure to assist you in any way possible.