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University of Pennsylvania, B.A.

Johns Hopkins University School of Medicine, M.D.

St. Vincents Medical Center, Medical Internship 

Mount Sinai Hospital, Dermatology Residency & Dermatopharmacology Fellowship

Dr. Joshua Zeichner is the Director of Cosmetic and Clinical Research in Dermatology at the Mount Sinai Hospital in New York City.

He is Board Certified in Dermatology and considered one of the country's key opinion leaders in treating acne and rosacea.  Dr. Zeichner is an expert in the use of cosmeceuticals and injectable fillers, toxins, and lasers in cosmetic dermatology. He strives to treat his patients' skin as a whole, combining both medical, non-invasive in-office procedures, and proper selection of over-the-counter skin care products to customize regimens and achieve optimal results. 

Dr. Zeichner is frequently called on by the media for his expert opinion.  He can be found quoted in national magazines and newspapers, including Allure, Vogue, Elle, Glamour, InStyle, Marie Claire, Women's Health, Cosmopolitan, Martha Stewart Living, Shape, Real Simple, Redbook, Family Circle, Dr. Oz The Good Life, and The New York Times.  Dr. Zeichner has been featured on news programs including CBS News, ABC News, Pix11, The Weather Chanel, and Inside Edition. 

He is actively engaged in clinical research, and his work has been published in the top peer-reviewed Dermatology journals.  As an educator, Dr. Zeichner trains residents and medical students every day and regularly lectures to international audiences at the major annual Dermatology meetings on topics ranging from acne to cosmetic skin care.

Dr. Zeichner was voted by his peers to New York Magazine’s Best Doctors lists in 2014 and is consistently ranked as one of the New York Metro Area’s Top Doctors by Castle Connolly.