Language: English
Gender: Male
General Dermatology
1305 York Avenue, 9th Floor
New York, NY 10021
P: (646) 962-3376 (DERM) | F: (646) 962-0033
Call for appointment
(646) 962-3376 (DERM)

Personal Statement

Coming soon!
View Biography


Board Certifications
  • Dermatology
  • Cosmetic Dermatology
  • Adolescent Dermatology
  • Dermatology, General
  • Dermatology
  • Pediatric Dermatology
  • Chemical Peel (Chemosurgery)
  • Juvederm Filler Injection
  • Botox
  • Psoriasis
  • Eczema
  • Acne
  • Warts
  • Sexually Transmitted Disease (STD)
  • Skin Cancer
  • Skin Tumor

Insurance Plans Accepted

The following represents most of the managed care plans accepted by this physician. If your insurance carrier does not appear here please contact the physician’s office as they may have individual contracts not included on this site.

* indicates this physician is no longer accepting new patients with this insurance plan.

  • AETNA [Medicare]
  • Aetna - Weill Cornell [POS]
  • Affinity Essential
  • Affinity Health Plan
  • Blue Priority Network
  • Empire Blue Cross/Blue Shield [PPO]
  • Empire Blue Cross/Blue Shield [Mediblue (Senior)]
  • Empire Blue Cross/Blue Shield [Pathway X]
  • Empire Blue Cross/Blue Shield [Pathway X Enhanced]
  • Empire Blue Cross/Blue Shield [HMO]
  • Empire Blue Cross/Blue Shield [EPO]
  • Empire Empire Blue Cross/Blue Shield HealthPlus
  • Empire Empire Blue Cross/Blue Shield HealthPlus [CHP]
  • Fidelis Care
  • Health First
  • Health Republic
  • Medicaid
  • Medicare
  • Oscar
  • Oxford Health Plans [Freedom]
  • Oxford Health Plans [Medicare Advantage]
  • Rockefeller University - CoreSource
  • United Empire
  • United Health Care
  • United Health Care [Community Plan]
  • VNSNY CHOICE Medicare [Medicare]
  • VNSNY CHOICE Medicare [HMO]


  • M.D., University of South Carolina Medical School, 1985
  • Ph.D., University of Notre Dame, 1975

Honors and Awards

NIH Grant NS16120-01,02,03               1980-1983


South Carolina Biomedical Research Grant, 22320 A10      1980



Associate Attending Dermatologist
NewYork-Presbyterian Hospital

Associate Professor of Clinical Dermatology
Weill Cornell Medical College


Dr. Gaan received his Ph.D. in biochemistry at the University of Notre Dame, and finished his post-doctoral fellowship at the Delta Research Center of Tulane University. He completed his medical education at the Medical University of South Carolina while serving as a research assistant professor in the Department of Neurology. Dr. Gaan was a recipient of a NIH Grant and a Muscular Dystrophy Grant to study the biosynthesis and degradation of glycosphingolipids. Prior to joining the Weill Cornell Department of Dermatology he had a private practice, and served as a voluntary attending physician at Mt. Sinai Medical Center.

To schedule an appointment, please call 646-962-DERM (3376).