Mark Halsey, MD

NPI 1790070480 · on the registry since 2011 · sole proprietor

Practice

Address: 3350 Noyac Rd
Sag Harbor, NY 11963
Phone: (631) 731-1099
Organisation at this address: Sagaponack Medical Pc
Inferred from a shared address, not stated in the registry.
Clinicians at this address: 5

Registry record

Primary taxonomy: 207N00000X
207N00000X
Also registered as: 207NP0225X
207NS0135X
Licence states on file: NY
From the registry's licence fields, which are often incomplete.
Sex: Male
Record last updated: 2025-08-05

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in New York