Karen Hammerman, M.D., F.A.A.D.



  • Board-Certified Dermatologist
  • 5+ years of experience in Dermatology
  • Clinical Instructor at Mount Sinai Medical Center


  • General & Cosmetic Dermatology
  • Botox & Fillers
  • Acne treatment


  • Undergraduate at Columbia University in NYC
  • Medical School and residency at Downstate Medical Center in Brooklyn
  • 2 year fellowship in Stem cells, wound healing and skin regeneration
  • Internship in General Surgery at Downstate
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Meet Karen Hammerman M.D.

Dr. Karen Hammerman is a board-certified dermatologist. She practices adult, pediatric, surgical, and laser dermatology with a focus in cosmetics. Dr. Hammerman is a native New Yorker who was raised on Long Island. She attended Barnard College, where she majored in environmental biology and graduated with honors. She received her M.D. degree from SUNY Downstate Medical Center in Brooklyn, where she then completed a preliminary year in general surgery followed by a two year research fellowship in skin regeneration and wound repair at NYU Medical Center. She completed her dermatology residency at SUNY Downstate Medical Center. Dr. Hammermans’ research has been published in several peer-reviewed journals. She has authored and co-authored wound healing book chapters, and has written NIH research grants in the fields of wound healing and regeneration, stem cells, and the management of chronic wounds. She is a voluntary house staff dermatologist at Mount Sinai Hospital, where she teaches residents and medical students. Dr.Hammerman appears frequently in the media and has been quoted in national outlets, including Harper’s Bazaar, Self and Refinery29. Dr. Hammerman resides in Great Neck, Long Island with her husband, Jason and their three sons James, William and Brody.