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

Individual provider Internal Medicine Physician · NPI 1831159326

Dr. Janet C Larson, MD is an Internal Medicine in Boston, Massachusetts. Graduated from Boston University School of Medicine in 1998, 28 years ago. Accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
28
Trained at
Boston University School of Medicine
Licensed in
MA
In the registry since
2006
Specialties on file
2
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

801 Massachusetts Ave Crosstown 2
Boston, MA 02118
Phone: (617) 414-7399
Fax: (617) 414-4676
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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 220603 (MA)
Hospitalist Physician Taxonomy 208M00000X · Licence 220603 (MA)

Record details

NPI number1831159326
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 27, 2006
Last updated in NPPESApril 3, 2024
Certification dateApril 3, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolBOSTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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