NPI Portal NPI Lookup & Verification

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Dr. Thomas W Eastman, DO

Gastroenterology Physician in Fallbrook, CA · enumerated 2006.

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

National Provider Identifier

1952381659

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Registry record

Entity type Individual (Type 1)
Name Dr. Thomas W Eastman
Credential DO
Sex Male
Practice address 521 East Elder St, #104, Fallbrook, CA, 92028
Fax (760) 728-9020
Enumeration date Jan 19, 2006
Last updated in NPPES Dec 6, 2012

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 20A4364 (CA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
00AX43640 Other CA MEDICAL
GR0050840 Other CA MEDICAL GROUP #

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 Thomas Eastman?
Thomas Eastman is registered in NPPES with the primary taxonomy of Gastroenterology 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 2012-12-06.