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William Cooper Procter Maloney, DO

Emergency Medicine Physician in Joint Base Lewis Mcchord, WA · enumerated 2020.

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

National Provider Identifier

1861021594

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Registry record

Entity type Individual (Type 1)
Name William Cooper Procter Maloney
Credential DO
Sex Male
Practice address Joint Base Lewis Mcchord, WA, 98431
Phone (253) 968-1110
Enumeration date Apr 4, 2020
Last updated in NPPES Jul 23, 2025

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 DO.OP.61679799 (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

What is the NPI number for William Maloney?
The National Provider Identifier (NPI) for William Maloney is 1861021594, a Type 1 (individual) record in the CMS NPPES registry.
Where does William Maloney practice?
The practice location on file with NPPES is in Joint Base Lewis Mcchord, WA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-23.