Seymour Alter, M.D

NPI 1750336251 · on the registry since 2006

Practice

Address: 222 Middle Country Rd
Suite 109
Smithtown, NY 11787
Phone: (631) 265-7711
Fax: (631) 265-1225
Organisation at this address: Mark Tan, M.D., P.C.
Village Medical, P.C.
J Andrew Fantl Gynecology Pc
Physical Therapy Experience Pllc
Physicians Private Practice, Pllc
Inferred from a shared address, not stated in the registry.
Clinicians at this address: 18

Registry record

Primary taxonomy: 174400000X
174400000X
Licence states on file: NY
From the registry's licence fields, which are often incomplete.
Sex: Male
Record last updated: 2026-07-13

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