Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Peterson Tsai, D.O.

Family Medicine Physician in Vancouver, WA · enumerated 2005.

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

National Provider Identifier

1629054879

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Registry record

Entity type Individual (Type 1)

Name Peterson Tsai

Credential D.O.

Sex Male

Practice address 7101 Ne 137th Ave, Vancouver, WA, 98682

Phone (800) 813-2000

Enumeration date Dec 20, 2005

Last updated in NPPES Feb 13, 2026

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 20A8341 (CA) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License OP60022449 (WA) Primary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License DO25814 (OR) Secondary

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

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

Where does Peterson Tsai practice?

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

What is the NPI number for Peterson Tsai?

The National Provider Identifier (NPI) for Peterson Tsai is 1629054879, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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