Mark A. Halsey, MD
Mark A. Halsey, MD is a Dermatology in Sag Harbor, New York. Graduated from University of South Florida College of Medicine in 2011, 15 years ago. Practices with Sagaponack Medical PC, a 2-clinician group and accepts Medicare assignment. Licensed in New York.
- Years since qualifying
- 15
- Trained at
- University of South Florida College of Medicine
- Licensed in
- NY
- In the registry since
- 2011
- Specialties on file
- 3
What do these letters mean?
- MD — Doctor of Medicine
- A physician who completed allopathic medical school.
Practice location Address checks out
3350 Noyac RdSag Harbor, NY 11963-1908
Phone: (631) 731-1099
Show map & directions
Directions in Google Maps · Apple Maps · OpenStreetMap
Pin is approximate — placed at the ZIP-code centre, not the exact door.
Specialties & licences
| Dermatology Physician (primary) | Taxonomy 207N00000X · Licence 282033 (NY) |
|---|---|
| Pediatric Dermatology Physician | Taxonomy 207NP0225X · Licence 282033 (NY) |
| Procedural Dermatology Physician | Taxonomy 207NS0135X · Licence 282033 (NY) |
Record details
| NPI number | 1790070480 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | MD |
| Sole proprietor | Yes |
| NPI enumerated | June 10, 2011 |
| Last updated in NPPES | August 5, 2025 |
| Certification date | August 5, 2025 |
| Mailing address | 3350 Noyac Rd, Sag Harbor, NY 11963-1908 |
Medicare enrollment
| Medicare specialty | DERMATOLOGY |
|---|---|
| Medical school | UNIVERSITY OF SOUTH FLORIDA COLLEGE OF MEDICINE |
| Graduated | 2011 (15 years in practice) |
| Group practice | Sagaponack Medical Pc — 2 clinicians |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |