Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Tracy A Thompson, MD

Internal Medicine Physician in Dublin, CA · enumerated 2006.

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

National Provider Identifier

1821076258

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Registry record

Entity type Individual (Type 1)

Name Dr. Tracy A Thompson

Credential MD

Sex Female

Practice address 4050 Dublin Blvd., Dublin, CA, 94568

Phone (925) 875-6100

Enumeration date Jan 5, 2006

Last updated in NPPES Feb 1, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G52019 (CA) Primary

208VP0000X Pain Medicine Physician Allopathic & Osteopathic Physicians · License G52019 (CA) Secondary

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
00G520190	Medicaid	CA	-

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

What is the NPI number for Tracy Thompson?

The National Provider Identifier (NPI) for Tracy Thompson is 1821076258, a Type 1 (individual) record in the CMS NPPES registry.

Where does Tracy Thompson practice?

The practice location on file with NPPES is in Dublin, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-01.