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

Dr. Brett Alan Schweizer, D.O.

Internal Medicine Physician in Marysville, WA · enumerated 2012.

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

National Provider Identifier

1265778849

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Brett Alan Schweizer

Credential D.O.

Sex Male

Practice address Marysville, WA, 98270

Phone (360) 651-7490

Enumeration date Dec 30, 2012

Last updated in NPPES Nov 21, 2014

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 20A12576 (CA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License OP60475530 (WA) 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
2038503	Medicaid	WA	-

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 Brett Schweizer practice?

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

What is the NPI number for Brett Schweizer?

The National Provider Identifier (NPI) for Brett Schweizer is 1265778849, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-11-21.