Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary Ann Muth, D.O.

Family Medicine Physician in Gresham, OR · enumerated 2011.

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

National Provider Identifier

1801180815

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary Ann Muth

Credential D.O.

Sex Female

Practice address 600 Ne 8th St, Gresham, OR, 97030

Phone (503) 988-5155

Enumeration date Jun 7, 2011

Last updated in NPPES Oct 21, 2025

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License OL60231724 (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
096511	Medicaid	OR	-
22959	Medicaid	OR	-

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 Mary Ann Muth?

Mary Ann Muth 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 2025-10-21.