Jack Cossman, MD

Dermatologist, Upper Westside Dermatology


Dr. Cossman is a board-certified dermatologist who practices medical, cosmetic, and surgical dermatology. As a member of the American Academy of Dermatology, Dr. Cossman loves all aspects of the specialty and welcomes patients of all ages and genders.

Originally from the Philadelphia area, he spent over a decade in New England for his education and training. He attended both college and medical school at Brown University. Among all clinical experiences, dermatology was a perfect fit: combining many aspects of medicine and surgery, it also fulfilled his lifelong interests in the natural and physical sciences, aesthetics, and human diversity.

After medical school, he completed his internship at Yale New Haven Hospital, and then returned to Providence for his dermatology residency at Roger Williams Medical Center. Starting in medical school and continuing through residency, he undertook various research projects and earned several awards. He also completed preceptorships in cosmetic and pediatric dermatology in Los Angeles and New York.

As chief in his final year of residency, Dr. Cossman taught and trained junior residents and medical students. Passionate for dermatology and desiring to continue teaching, he is proudly on staff at New York University’s Department of Dermatology, where he teaches residents weekly.

Beyond enjoying living in New York, Dr. Cossman ever endeavors to see and experience our amazing world. He has been to 34 countries and 40 states and is on a quest to visit them all. Enjoying camping and hiking, he is also aspiring to see all the National Parks, having visited 30 so far. Big Bend National Park in Texas is his favorite, although Great Sand Dunes in Colorado was spectacular, too.

Education & Training

Medical School – Brown University, Doctor of Medicine


Boston University, Roger Williams Medical Center, Residency in Dermatology

Yale University, Yale-New Haven Hospital (Internship)

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Cigna
  • First Health
  • Highmark
  • Humana
  • Multiplan
  • MVP
  • Oxford
  • PHCS
  • United Health
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Jack Cossman MD
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 2 reviews
by Chris Jeyes on Jack Cossman MD

Went for an excision (mole removal) with Dr. Cossman. I have a real phobia of surgery and could not have had a better experience. Walked me through the whole process, “held my hand” start to finish. Would recommend to anyone who needs anything from a dermatologist, he is first class.
"Review from Google"

by Anonymous on Jack Cossman MD

Excellent dermatologist, excellent nurse, excellent office staff. I was offered the opportunity to complete paperwork in advance saving me time on the day of my appointment. I was seen promptly, within about five minutes of my appointment time. My annual skin check was thorough, and the doctor and nurse were both very knowledgeable and personable, answering all my questions never making me feel rushed. I’m thrilled to have found this office.

"Review from Google"

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