Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James S Thompson, MD

Psychiatry Physician in West Springfield, MA · enumerated 2005.

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

National Provider Identifier

1063407617

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Registry record

Entity type Individual (Type 1)

Name Dr. James S Thompson

Credential MD

Sex Male

Practice address 1132 Westfield St, West Springfield, MA, 01089

Phone (800) 378-5454

Enumeration date Sep 20, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 73230 (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
P00065660	Other	MA	RAILROAD MEDICARE
J11086	Other	MA	BLUE CARD
3077411	Medicaid	MA	-
J11086	Other	MA	FEDERAL BC/BS
073230	Other	MA	TUFTS MEDICARE PREFERRED
J11086	Other	MA	BC/BS OF MASSACHUSETTS
073230	Other	MA	TUFTS
1501050	Other	MA	EVERCARE

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is James Thompson?

James Thompson is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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