Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Olivia Margaret Klinkhammer, D.O.

Family Medicine Physician in Marysville, WA · enumerated 2018 · practices at Optum Care Washington Pllc.

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

National Provider Identifier

1376036533

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Registry record

Entity type Individual (Type 1)

Name Olivia Margaret Klinkhammer

Credential D.O.

Sex Female

Practice address 2901 174th St Ne, Marysville, WA, 98271

Phone (360) 454-1900

Enumeration date Jun 12, 2018

Last updated in NPPES Jun 8, 2026

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 143-T2 (WY) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License OP61162122 (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
143-T1	Other	WY	WYOMING BOARD OF MEDICINE

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 Olivia Klinkhammer?

Olivia Klinkhammer 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 2026-06-08.