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

Dr. John T Larossa, MD

Individual provider Specialist · NPI 1346217155

Dr. John T Larossa, MD is an Endocrinology in Newton, Massachusetts. Graduated from Tufts University School of Medicine in 1973, 53 years ago. Accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
53
Trained at
Tufts University School of Medicine
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

2000 Washington St Ste 100
Newton, MA 02462-1650
Phone: (617) 244-1311
Fax: (617) 244-2819
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 36773 (MA)

Record details

NPI number1346217155
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 1, 2006
Last updated in NPPESJuly 13, 2026
Mailing address2000 Washington St, Suite 100, Newton, MA 02462-1650

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1973 (53 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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