Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

William Earl Maes, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1114488525

William Earl Maes, MD practises Internal Medicine in Seattle, Washington. Qualified in 2019, 7 years ago. Practices with Neighborcare Health, a 102-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
7
Licensed in
WA
In the registry since
2019
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Seattle, WA

No coordinates on file. Search this address in Google Maps

Additional practice locations (1)

  • 975 Sereno Dr, Vallejo, CA 94589-2441 — (707) 651-4071

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD61476823 (WA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1114488525
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 28, 2019
Last updated in NPPESMarch 17, 2026
Certification dateMarch 17, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Neighborcare Health — 102 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients22
Services billed 31 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Neighborcare Health

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 102 clinicians in the practice; 12 are shown here.

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