Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas Britton Percy, MD

Internal Medicine Physician in Westfield, MA · enumerated 2006.

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

National Provider Identifier

1699709352

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Registry record

Entity type Individual (Type 1)

Name Thomas Britton Percy

Credential MD

Sex Male

Practice address 115 W Silver St, Westfield, MA, 01085

Phone (413) 572-5099

Fax (413) 572-4151

Enumeration date Jul 10, 2006

Last updated in NPPES Apr 30, 2008

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 151347 (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
J16762	Other	MA	BLUE CROSS BLUE SHIELD
3153916	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.

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Frequently asked questions

How do I verify Thomas Percy's NPI record?

Cross-check NPI 1699709352 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1699709352 active?

Yes, as of the latest NPPES snapshot, NPI 1699709352 is active (record last updated 2008-04-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-30.