Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William Cooper Procter Maloney, DO

Individual provider Emergency Medicine Physician · NPI 1861021594

William Cooper Procter Maloney, DO is an Emergency Medicine in Joint Base Lewis McChord, Washington. Qualified in 2022, 4 years ago. Practices as a sole proprietor. Licensed in Washington.

Years since qualifying
4
Licensed in
WA
In the registry since
2020
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

9040A Jackson Ave
Joint Base Lewis McChord, WA 98431-3983
Phone: (253) 968-1110
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence DO.OP.61679799 (WA)

Record details

NPI number1861021594
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 4, 2020
Last updated in NPPESJuly 23, 2025
Certification dateJuly 23, 2025
Mailing address9040a Jackson Ave, Joint Base Lewis McChord, WA 98431-0001

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Accepts Medicare assignment Not indicated
Practice locations3 on file with Medicare

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