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

Dr. Michael L Langan, MD

Individual provider Geriatric Medicine (Internal Medicine) Physician · NPI 1366433922

Dr. Michael L Langan, MD is a Geriatric Medicine (Internal Medicine) Physician in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2005.

Licensed in
MA
In the registry since
2005
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

100 Charles River Plz Ste 501 Cpz 502
Boston, MA 02114-2725
Phone: (617) 726-4600
Fax: (617) 228-6306
Show map & directions

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

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence 151239 (MA)

Record details

NPI number1366433922
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 2, 2005
Last updated in NPPESDecember 21, 2012

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