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Dr. Eileen O'Sullivan, MB BCH BAO

Emergency Medicine Physician in Vancouver, WA · enumerated 2013.

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

National Provider Identifier

1538504519

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Registry record

Entity type Individual (Type 1)
Name Dr. Eileen O'Sullivan
Credential MB BCH BAO
Sex Female
Practice address Vancouver, WA, 98686
Phone (360) 882-2778
Enumeration date May 6, 2013
Last updated in NPPES Mar 29, 2023

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

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD192455 (OR) Secondary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD61237966 (WA) Primary

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 Eileen O'Sullivan practice?
The practice location on file with NPPES is in Vancouver, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Eileen O'Sullivan?
The National Provider Identifier (NPI) for Eileen O'Sullivan is 1538504519, 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 2023-03-29.