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

John Michael McWilliams, MD

Individual provider Internal Medicine Physician · NPI 1366408411

John Michael McWilliams, MD is an Internal Medicine Physician in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

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

75 Francis Street Brigham Internal Medicine Associates
Boston, MA 02115
Phone: (617) 732-6040
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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 223922 (MA)

Record details

NPI number1366408411
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 25, 2006
Last updated in NPPESMay 1, 2012
Mailing address75 Francis Street, Brigham Internal Medicine Associates, Boston, MA 02115

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