Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gary Jacobson, MD

Psychiatry Physician in Westwood, MA · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1851373211

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. Gary Jacobson

Credential MD

Sex Male

Practice address 45 Clapboard Tree Street, Westwood Lodge Hospital, Westwood, MA, 02090

Phone (781) 762-7764

Fax (781) 255-8802

Enumeration date Nov 18, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 28094 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
028094	Other	MA	TUFTS HEALTH PLAN
2032627	Medicaid	MA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1851373211 active?

Yes, as of the latest NPPES snapshot, NPI 1851373211 is active (record last updated 2007-07-08).

How do I verify Gary Jacobson's NPI record?

Cross-check NPI 1851373211 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.