About Mark Halsey, MD

Mark Halsey, MD is an absolutely amazing and knowledgeable dermatologist, considered the best in the area. He effectively treats conditions like eczema and addresses all skin issues for adults and children, while also providing cosmetic services such as Botox and microneedling. Dr. Halsey is great, patient, and thoughtful when presenting a recommended course of treatment. His office team is efficient, kind, professional, and warm, handling questions and insurance issues with skill. The office is pristine, appointments are on time, and the experience leaves patients feeling happier and healthier. He is highly recommended.

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Reviews for Mark Halsey, MD

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  • Jan 2025

    My skin has not been this clear in years. Dr. Halsey has effectively treated my eczema, when no other dermatologist I saw was able to offer a solution.
    Dr. Halsey is great at presenting a recommended course of treatment. He is patient and answers questions thoughtfully.
    His office team is efficient and kind, and handles questions (including insurance issues) with professionalism. In terms of scheduling, there was a bit of a wait to see him for the first appointment, however I am now able to see him as needed.
    I’m relieved to have such a knowledgeable dermatologist in the area.

  • Dec 2024

    Love Dr. Halsey and Ashton the PA. Absolute best in the area. The office is pristine and everyone greets you with a smile. It’s always a pleasure going and I leave happier and healthier. Botox, microneedling and any other skin issues are well taken care of.

  • Feb 2022

    Dr. Halsey and his staff provide a flawless environment for dermatological care. The space is immaculate. They always work on time. The generous nature and professionalism of his staff is unmatched. My daughter saw him for a bit of an emergency appointment and felt so well cared for. My husband and I then went for full body skin scans and were very happy. I went on to see him for laser treatments for sun damage and I’m so appreciative of his kindness and patience and willingness to see through on what I need. If you are looking for a new dermatologist, this is the one!

Hours

Monday: 8:45AM - 5PM
Tuesday: 8:45AM - 5PM
Wednesday: 8:45AM - 5PM
Thursday: 8:45AM - 5PM
Friday: 8:45AM - 5PM
Saturday: ClosedSunday: Closed

Location

3350 Noyack Rd, Sag Harbor

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