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

Stephan Philip Leonhardt Altmayer, MD

Individual provider Internal Medicine Physician · NPI 1437728821

Stephan Philip Leonhardt Altmayer, MD is an Internal Medicine Physician in Framingham, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2021.

Licensed in
MA
In the registry since
2021
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

115 Lincoln St
Framingham, MA 01702-6358
Phone: (508) 383-1000
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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 289784 (MA)

Record details

NPI number1437728821
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 21, 2021
Last updated in NPPESJune 21, 2021
Certification dateJune 21, 2021
Mailing address55 Concord St Apt 422, Framingham, MA 01702-8387

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