Dermatology, Pediatric Dermatology • 2 Providers

386 Montauk Hwy, Wainscott NY, 11975

Today: Closed


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  • Wed1:00pm - 7:00pm
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Hennessey Dermatology

386 Montauk Hwy, Wainscott, NY 11975

Provider Reviews

Overall rating for providers


Based on 7 Reviews

Sep 20 2019

Review for Dr. Halsey

in New York, NY - May 04 2019

Review for Dr. Cossman

Wonderful doctor and even more wonderful person. I come for acne and every visit is a pleasure.

Feb 07 2019

Review for Dr. Cossman

Feb 06 2019

Review for Dr. Cossman

Feb 01 2019

Review for Dr. Cossman

I was very impressed with Dr. Cossman's attention to detail and his willingness to spend the time to explain what had to be done in the treatment of my skin issue. His professionalism is to be commended.

in East Hampton, NY - Jan 31 2019

Review for Dr. Cossman

I have numerous skin conditions and growths. Dr. Cossman is extremely thorough, pleasant, and instructive. He diagnosed melanoma in my friend and has found several skin cancers on me. I’m very grateful for his meticulous and wonderful care.

Jan 02 2019

Review for Dr. Cossman

Dec 21 2018

Review for Dr. Cossman