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

Individual provider Internal Medicine Physician · NPI 1265545917

Peter J. Massicott, MD is an Internal Medicine in Boston, Massachusetts. Graduated from Georgetown University School of Medicine in 1989, 37 years ago. Practices with President and Fellows of Harvard College, a 95-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
37
Trained at
Georgetown 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

275 Longwood Ave
Boston, MA 02115-5704
Phone: (617) 432-1370
Fax: (617) 432-7120
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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 76162 (MA)

Record details

NPI number1265545917
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 16, 2006
Last updated in NPPESJanuary 15, 2015
Mailing address75 Mount Auburn St, Harvard University Health Services, Cambridge, MA 02138-4960

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice President And Fellows Of Harvard College — 95 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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