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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOHN ANTHONY FALLON M.D.
NPI 1609816883
Internal Medicine in Boston, MA

Active since June 07, 2006
BLUE CROSS BLUE SHIELD OF MA,, 401 PARK DR., BOSTON, MA 02215(617) 246-3392(617) 246-3817 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. John Anthony Fallon M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN ANTHONY FALLON M.D. (NPI 1609816883) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (36815) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1609816883
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JOHN ANTHONY FALLONCredential: M.D.
Location AddressBLUE CROSS BLUE SHIELD OF MA,, 401 PARK DR.Boston, MA 02215-3326
Mailing Address36 Wildwood DrLynnfield, MA 01940-1333 · (781) 334-6121
Phone(617) 246-3392
Fax(617) 246-3817
Sole ProprietorNo
Enumeration DateJune 7, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1609816883 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 36815
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
BLUE CROSS BLUE SHIELD OF MA,, Boston, MA 02215
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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Fallon's NPI number?

The NPI number for John Fallon is 1609816883. It was assigned to this individual provider in the NPPES registry on June 7, 2006.

Where is John Fallon located?

John Fallon practices at Blue Cross Blue Shield Of Ma, 401 Park Dr., Boston, MA 02215. The listed phone number is (617) 246-3392.

What is John Fallon's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for John Fallon was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.