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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.

GREGORY A GORDON M.D.
NPI 1356316608
Internal Medicine in Boston, MA

Active since February 21, 2006
133 BROOKLINE AVE, INTERNAL MEDICINE, BOSTON, MA 02215(617) 421-8843 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Gregory A Gordon M.d. NPPES

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

GREGORY A GORDON M.D. (NPI 1356316608) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (226580) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1356316608
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameGREGORY A GORDONCredential: M.D.
Location Address133 BROOKLINE AVE, INTERNAL MEDICINEBoston, MA 02215-3904
Mailing Address147 Milk St, Provider Enrollment - 9th FloorBoston, MA 02109-4806 · (617) 559-8374 · Fax (617) 421-3487
Phone(617) 421-8843
Sole ProprietorNo
Enumeration DateFebruary 21, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1356316608 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 · 226580
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.
133 BROOKLINE AVE, Boston, MA 02215
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Other Identifiers 4

Other494375MA · Tufts
OtherJ29568MA · Blue Cross
OtherAA46469MA · Harvard Pilgrim
Medicaid2113210MA

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. MELISSA ASHLEY ZIOGAS APRN-FNP
Nurse Practitioner (Family)
133 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 421-1000
SHIVAUN ELAINE PIKE NP
Nurse Practitioner (Adult Health)
133 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 421-1000
HARRIET SCHEFT M.D.
Psychiatry & Neurology (Psychiatry)
133 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 421-2040
CAROL J ZUCKERMAN M.D.
Internal Medicine
133 BROOKLINE AVE, INTERNAL MEDICINE
BOSTON, MA 02215
Suffolk County (617) 421-5804
HARVARD VANGUARD MEDICAL ASSOCIATES
Social Worker
133 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 421-1000
DIANE L. GILWORTH NP
Registered Nurse
133 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 421-6050
MARGARET SIDOR PHD, CGC
Genetic Counselor, MS
133 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 421-1035
NED WILSON MORSE
Technician/Technologist (Optician)
133 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (174) 211-1496

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 Gregory Gordon's NPI number?

The NPI number for Gregory Gordon is 1356316608. It was assigned to this individual provider in the NPPES registry on February 21, 2006.

Where is Gregory Gordon located?

Gregory Gordon practices at 133 Brookline Ave Internal Medicine, Boston, MA 02215. The listed phone number is (617) 421-8843.

What is Gregory Gordon'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 Gregory Gordon 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 26 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.