Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William A Gilmartin, MD

Individual provider Internal Medicine Physician · NPI 1457454670

William A Gilmartin, MD is an Internal Medicine in Hampton Bays, New York. Graduated from Georgetown University School of Medicine in 1993, 33 years ago. Practices with Meeting House Lane Medical Practice PC, a 123-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
33
Trained at
Georgetown University School of Medicine
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

182 W Montauk Hwy Bldg B Ste H
Hampton Bays, NY 11946
Phone: (631) 723-0022
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 227116 (NY)

Record details

NPI number1457454670
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 6, 2006
Last updated in NPPESApril 15, 2022
Certification dateApril 15, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 1993 (33 years in practice)
Group practice Meeting House Lane Medical Practice Pc — 123 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Hampton Bays