Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Brett C Johnson, D.O.

Family Medicine Physician in Travis Afb, CA · enumerated 2010.

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

National Provider Identifier

1023337185

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Registry record

Entity type Individual (Type 1)

Name Brett C Johnson

Credential D.O.

Sex Male

Practice address Travis Afb, CA, 94535

Phone (707) 423-3383

Enumeration date May 27, 2010

Last updated in NPPES Oct 25, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License O-0729 (ID) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 20A13693 (CA) 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.

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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 Brett Johnson?

Brett Johnson is registered in NPPES with the primary taxonomy of Family Medicine 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 2016-10-25.