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Dr. Mark Halsey, MD

Dr. Mark Halsey, MD

Dermatology*

Dr. Mark Halsey, MD is a dermatologist in Sag Harbor, NY. Dr. Halsey has extensive experience in Skin Cancer & Excision. He is affiliated with Stony Brook University Hospital. He is accepting new patients and telehealth appointments.

3.9 Star Rating
Based on 16 reviews 3.9 Star Rating (16 reviews)

Practice

3350 Noyac Rd Sag Harbor, NY 11963
Telehealth available
(631) 731-1099

At a Glance

  • Areas of Expertise
    Dr. Halsey specializes in the areas of Dermatology & Pediatric Dermatology. • See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    America's 100 Best Hospitals Award™ • See hospitals
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Dr. Halsey's Reviews

Likelihood to recommend Dr. Halsey

3.9

16 ratings, 12 with a written review
5 Star
63%
63%
4 Star
13%
13%
3 Star
0%
0%
2 Star
0%
0%
1 Star
25%
25%

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We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.

All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.

Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.

Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.

RecentHighestLowestMost Helpful
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Mar 01, 2025
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What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Feb 26, 2025
×Post a ResponseAre you Dr. Mark Halsey, MD?
What went well
No results
What could be improved
No results
1 person found this helpful
Helpful
Nov 26, 2024
×Post a ResponseAre you Dr. Mark Halsey, MD?
What went well
No results
What could be improved
No results
Helpful
Nov 20, 2024
×Post a ResponseAre you Dr. Mark Halsey, MD?
What went well
No results
What could be improved
No results
Helpful
Nov 19, 2024
×Post a ResponseAre you Dr. Mark Halsey, MD?
What went well
No results
What could be improved
No results
Helpful
Nov 16, 2024
×Post a ResponseAre you Dr. Mark Halsey, MD?
What went well
No results
What could be improved
No results
Helpful
Aug 09, 2024
×Post a ResponseAre you Dr. Mark Halsey, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
RV – Oct 16, 2023
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What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Staff wasn't friendly
  • Didn't trust the provider's decisions
2 people found this helpful
Helpful
Sarah – Jul 19, 2022
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Michelle B – May 26, 2021
×Post a ResponseAre you Dr. Mark Halsey, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Jul 17, 2020
×Post a ResponseAre you Dr. Mark Halsey, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
3 people found this helpful
Helpful
Sep 20, 2019
×Post a ResponseAre you Dr. Mark Halsey, MD?

Leave a review

How was your experience with Dr. Halsey?

Know Before You Go

About Me

care philosophy

Dr. Mark A. Halsey is a Harvard-trained dermatologist serving the Hamptons. Dr. Halsey holds a faculty appointment at NYU, where he trains dermatology residents, as well as medical students. He is a professional member of the American Academy of...read more

biography

Dr. Mark A. Halsey is a Dermatologist serving the Hamptons. His patient-centered practice provides expertise in general, pediatric and cosmetic dermatology.

  • Dermatology

  • Pediatric Dermatology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Harvard/boston Childrens Hospital

    Fellowship Hospital

  • University Of Massachusetts

    Residency Hospital
American Board of Medical Specialties®
American Board of Dermatology®
- 
Dermatology
- 
Pediatric Dermatology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

Learn more about medical license public record check

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Locations

Practice

Sagaponack Medical PC3350 Noyac Rd Sag Harbor, NY 11963
1

Practice

NYC Health Hospitals / Bellevue462 1st Ave New York, NY 10016
2

Affiliated Hospitals

  • Stony Brook University Hospital

    101 Nicolls Rd
    Stony Brook, NY 11794
    Recipient of 33
    hospital awards

    America's 100 Best Hospitals Award™ (2025, 2024, 2023)

    Top 5% in the nation for consistently delivering clinical quality

    America's 250 Best Hospitals Award™ (2025, 2024, 2023)

    Top 5% in the nation for consistently delivering clinical quality

    View all awards

    How patients felt about the care they received at this hospital.

    86%
    Patients said they were given information about recovering at home

    2% higher than the national average

    74%
    Patients said that doctors always listened to them and explained things well

    2% lower than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality