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

William M Gaines, MD

Individual provider Internal Medicine Physician · NPI 1184684078

William M Gaines, MD is an Internal Medicine in Auburn, Massachusetts. Graduated from Js Weill Medical College, Cornell University in 1983, 43 years ago. Practices with Reliant Medical Group Inc, a 638-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
43
Trained at
Js Weill Medical College, Cornell University
Licensed in
MA
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

385 Southbridge St
Auburn, MA 01501-2498
Phone: (508) 721-1170
Fax: (508) 832-0859
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 56092 (MA)

Record details

NPI number1184684078
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 24, 2006
Last updated in NPPESMarch 14, 2019
Mailing address5 Neponset St Fl St2, Worcester, MA 01606-2714

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolJS WEILL MEDICAL COLLEGE, CORNELL UNIVERSITY
Graduated 1983 (43 years in practice)
Group practice Reliant Medical Group Inc — 638 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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