Our Doctors and Providers

Hendrik Uyttendaele, M.D. Ph.D.

Dr. Uyttendaele is a board-certified dermatologist and is the owner of Hudson Dermatology, P.C. He has been rated by his peers one of the Hudson Valley’s best doctors by Castle Connolly as published by Hudson Valley magazine for 10 years in a row.

Dr. Uyttendaele completed his residency in dermatology at Columbia Presbyterian Medical Center in New York City. He graduated with an M.D. from the University of Leuven, Belgium, and received a Ph.D. from Columbia University in New York City. He currently is a clinical instructor at Columbia University’s Department of Dermatology in Manhattan.

Ross Zeltser, M.D.

Dr. Zeltser is a board-certified dermatologist specializing in Mohs micrographic surgery. He graduated and obtained his M.D. from the University of Rochester School of Medicine in Rochester, New York. He has been performing Mohs surgery for Hudson Dermatology patients since 2008 and recently joined the practice full time, heading our office in Somers and a Mohs surgery center in White Plains. Since 2013, he has been rated by his peers as one of Westchester’s top doctors by Castle Connolly, whose selections are published by Westchester magazine.

Dr. Zeltser did his residency at the Boston University/Tufts University Dermatology Residency Program, where he was chosen chief resident. He received his board certification in dermatology in August 2006, and trained as a Mohs surgical fellow under the direction of Gary S. Rogers, M.D., at Tufts-New England Medical Center in Boston from July 2006 through July 2007.

He has had numerous articles published in medical journals and has presented his work before the American Society for Dermatologic Surgery, the American College of Mohs Micrographic Surgery and the American Society for Laser Medicine and Surgery.

Dr. Zeltser is currently a clinical instructor at Columbia University’s Department of Dermatology.

Jeffrey S. Kezis, M.D.

Dr. Kezis is a board-certified dermatologist and has been in private practice of dermatology for over 30 years. Dr Kezis is the founder of our dermatology practice.

Dr. Kezis is a graduate of the Hahnemann University School of Medicine in Philadelphia and completed his residency in dermatology at the State University of New York at Buffalo. He is a lifetime member of the American Academy of Dermatology and an Assistant Clinical Professor in the Department of Dermatology at Columbia Presbyterian Medical Center in New York City.

Lasha Jaiani, M.D.

Dr. Jaiani is board certified in internal medicine and specializes in dermatology. He has a special interest in skin manifestations of internal disease. He completed his training in medicine at the Yale University affiliated Hospital of St. Raphael in New Haven, Conn., and trained in dermatology at the Institute for Family Health in Kingston, N.Y.

Dr. Jaiani has completed extensive research training in dermatology in fellowships at Emory University in Atlanta and at Northwestern University in Chicago. He is a graduate of Tbilisi State Medical University in Tbilisi, Georgia. He has published several scientific articles in peer-reviewed journals.

Kristina Heitzman Carr, P.A.-C.

Kristina Carr is a certified physician assistant with over 27 years of clinical experience. She received her bachelor’s degree from Colgate University and trained as a Physician Assistant at Northeastern University in Boston.

Ms. Carr worked in primary care and various surgical specialties in New England before moving to the Hudson Valley in 1985. She trained in dermatology and dermatologic surgery with Dr. Herbert Goodheart, who retired from the practice in 2010, and worked with him for 11 years while at Kaiser.

Suellen Nelson, P.A.-C.

Suellen Nelson is a certified physician assistant with over 31 years of clinical experience. She received her bachelor’s degree from the Boston College School of Nursing and her physician assistant training at the Yale University School of Medicine’ Physician Associate Program in New Haven, Conn.

Mrs. Nelson trained in dermatology and dermatologic surgery with Dr. Herbert Goodheart, who retired from Hudson Dermatology in 2010. She has worked as a physician assistant in various surgical and medical specialties, most recently at the Danbury Office of Physician Services in Danbury, Conn.

Karl Kruszynski, P.A.-C.

Karl Kruszynski, a certified physician assistant, joined Hudson Dermatology in July 2014. He sees patients in our Kingston and Poughkeepsie offices.

Mr. Kruszynski studied and practiced dermatology for seven years under Dr. Marie-Louise Johnson as a physician assistant at Dermatology Services of Kingston and as a fellow at the Institute for Family Health in Kingston. Before that he worked as a physician assistant for more than three years at Hudson Valley Urology.

Mr. Kruszynski received his master of health science and his physician assistant training at Duke University in North Carolina. He received his undergraduate degree at Indiana University in Bloomington, Indiana.

Isaac R. Rosenblum, P.A.-C.

Isaac Rosenblum is a certified physician assistant who worked in neurovascular surgery, urgent care, family medicine and internal medicine before coming to Hudson Dermatology in early 2016.

Mr. Rosenblum graduated with highest honors from the physician assistant program at Miami Dade College in Florida in 2014.

He came to medicine by an unusual route: he first earned a law degree and practiced as a lawyer for four years. While practicing law, Mr. Rosenblum also trained to be an emergency medical technician, and decided that medical work was his calling.

Carolyn M. Baker, P.A.-C.

Carolyn Baker is a certified physician assistant with over eight years of clinical experience. She spent her career practicing plastic and dermatologic surgery in central New York before joining Hudson Dermatology in summer 2016.

Ms. Baker completed her bachelor’s degree in biology at Colgate University and received her master’s in physician assistant studies from Philadelphia University. She also received surgical training at Lankenau Hospital in Philadelphia and plastic surgery training at Westchester Medical Center in Valhalla.

Ms. Baker specializes in surgical dermatology and is also available for medical and cosmetic dermatology appointments. She sees patients in our Poughkeepsie and Fishkill offices.

Nicole Valastro, L.E.

Nicole Valastro is a licensed esthetician and cosmetologist. She provides a range of esthetic services including chemical peels, microdermabrasion, facials, and laser hair removal.

Ms. Valastro received her esthetician license at the Hudson Valley School of Advanced Aesthetic Skincare in 1999. She supervised and instructed students and prepared them for State Board Exams at the school from 2000-2002. She also owned and operated Nicole Valastro Skincare.

In 2002, Ms. Valastro joined Allergy and Dermatololgy Associates of the Hudson Valley as a licensed medical assistant, complimenting her experience in aesthetics with medical experience in dermatology. She now works alongside Dr. Uyttendaele at Hudson Dermatology providing laser treatments, Botox, Radiesse, Restylane and sclerotherapy.

Abby Mandia, L.E.

Abby Mandia is a licensed esthetician and cosmetologist. She provides a wide range of esthetic services in our Fishkill office including chemical peels, microdermabrasion and facials. She also operates our excimer laser and TheraClear acne clearing system.

Ms. Mandia graduated from Capri Cosmetology in 2008 and has been with Hudson Dermatology since 2010. In addition to working as an esthetician, Ms. Mandia is also a medical assistant to our doctors, physician assistants, Mohs surgeon and plastic surgeons.

Marisa Bedner, L.E.

Marisa Bedner is a licensed esthetician and offers a wide range of esthetic services in our Kingston office.

She graduated from the Hudson Valley School of Advanced Aesthetic Skin Care in 2007, and worked in medical spas in New York City before joining Hudson Dermatology in 2013. In addition to working as an esthetician, Ms. Bedner also is a medical assistant to our doctors and physician assistants.