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JASON M BARON M.D.
NPI 1346477890
Pathology - Anatomic Pathology & Clinical Pathology in Boston, MA

Active since June 11, 2009
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET, BOSTON, MA 02114(617) 726-2967 Get Directions Write a Review

NPPES record last updated: June 11, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Jason M Baron M.d. NPPES

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

JASON M BARON M.D. (NPI 1346477890) is an individual anatomic pathology & clinical pathology provider in Boston, Massachusetts, licensed in Massachusetts (L-240121) and active in the NPI registry since June 2009.

NPPES Registry Identity

NPI1346477890
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameJASON M BARONCredential: M.D.
Location AddressMASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREETBoston, MA 02114
Mailing AddressMassachusetts General Hospital, 55 Fruit StreetBoston, MA 02114 · (617) 726-2967
Phone(617) 726-2967
Sole ProprietorNo
Enumeration DateJune 11, 2009
✔ NPI 1346477890 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
License✔ Licensed in MA · L-240121
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
MASSACHUSETTS GENERAL HOSPITAL, Boston, MA 02114
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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.

KAITLYN MY-TU LAM MBBS
Internal Medicine (Cardiovascular Disease)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Suffolk County (617) 724-7738
ALAKA RAY M.D.
Internal Medicine
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Suffolk County (617) 726-2066
MEGHAN E SISE M.D.
Internal Medicine (Nephrology)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Suffolk County (617) 726-2862
HUGH G AUCHINCLOSS M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Suffolk County (617) 726-2000
ANGELA M. JACQUES MD
Pediatrics
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114
Suffolk County (617) 726-2066
NICOLE J LOOK-HONG MD, MSC
Surgery (Surgical Oncology)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114
Suffolk County (617) 724-3868
CORINNA M ELLIOTT MA
Student in an Organized Health Care Education/Training Program
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Suffolk County (617) 724-5600
KIRAN J AGARWAL-HARDING MD
Orthopaedic Surgery
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114
Suffolk County (617) 726-2942

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 Jason Baron's NPI number?

The NPI number for Jason Baron is 1346477890. It was assigned to this individual provider in the NPPES registry on June 11, 2009.

Where is Jason Baron located?

Jason Baron practices at Massachusetts General Hospital 55 Fruit Street, Boston, MA 02114. The listed phone number is (617) 726-2967.

What is Jason Baron's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

When was this NPI record last updated?

The NPPES record for Jason Baron was last updated on June 11, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years 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.