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Dr. Brian Holahan, DO

Interventional Cardiology Physician in Olympia, WA · enumerated 2018 · practices at Cardiology Associates Pllc.

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

National Provider Identifier

1578054375

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Registry record

Entity type Individual (Type 1)
Name Dr. Brian Holahan
Credential DO
Sex Male
Practice address 500 Lilly Rd Ne Ste 100, Olympia, WA, 98506
Phone (360) 413-8525
Fax (360) 412-6477
Enumeration date May 29, 2018
Last updated in NPPES Sep 26, 2025

Taxonomy & licenses

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License OP61678783 (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

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

Where does Brian Holahan practice?
The practice location on file with NPPES is in Olympia, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Brian Holahan?
The National Provider Identifier (NPI) for Brian Holahan is 1578054375, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-26.