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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

H. EMERSON THOMAS JR. M.D.
NPI 1609828318
Internal Medicine in Boston, MA

Active since May 17, 2006
780 BOYLSTON ST, PLAZA LEVEL, BOSTON, MA 02199(617) 262-1500(617) 262-7015 Get Directions Write a Review

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

About H. Emerson Thomas Jr. M.d. NPPES

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

H. EMERSON THOMAS JR. M.D. (NPI 1609828318) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (27888) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1609828318
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameH. EMERSON THOMAS JR.Credential: M.D.
Location Address780 BOYLSTON ST, PLAZA LEVELBoston, MA 02199-7820
Mailing Address212 Highland StMarshfield, MA 02050-6217 · (781) 837-3323
Phone(617) 262-1500
Fax(617) 262-7015
Sole ProprietorNo
Enumeration DateMay 17, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1609828318 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 · 27888
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.
780 BOYLSTON ST, Boston, MA 02199
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Other Identifiers 1

Medicaid0187623MA

Other Providers at the Same Location NPPES 6

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

DR. SUSAN T CABOT MD
Internal Medicine
780 BOYLSTON ST, MEDICAL CARE AFFILIATES
BOSTON, MA 02199
Suffolk County (617) 262-1500
RADHIKA VENUGOPAL M.D.
Internal Medicine
780 BOYLSTON ST, APT 16 A
BOSTON, MA 02199
Suffolk County (617) 304-3921
OTTIE M THOMAS-SMITH BCO, CCA
Technician/Technologist (Ocularist)
780 BOYLSTON ST
BOSTON, MA 02199
Suffolk County (617) 750-6273
DR. RONA KLEIN M.D.
Psychiatry & Neurology (Psychiatry)
780 BOYLSTON ST, 7J
BOSTON, MA 02199
Suffolk County (857) 991-1582
DR. MARILYN FRANCES MCDEVITT DDS
Dentist (General Practice)
780 BOYLSTON ST
BOSTON, MA 02199
Suffolk County (617) 424-7138
GEORGE W KAY D.M.D.,M.M.SC
Dentist (Prosthodontics)
780 BOYLSTON ST
BOSTON, MA 02199
Suffolk County (617) 424-0124

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 H. Thomas's NPI number?

The NPI number for H. Thomas is 1609828318. It was assigned to this individual provider in the NPPES registry on May 17, 2006.

Where is H. Thomas located?

H. Thomas practices at 780 Boylston St Plaza Level, Boston, MA 02199. The listed phone number is (617) 262-1500.

What is H. Thomas'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 H. Thomas 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 22 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.