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

William Michael Downes, MD

Individual provider Emergency Medicine Physician · NPI 1912494808

William Michael Downes, MD practises Emergency Medicine in Loma Linda, California. Graduated from Loma Linda University School of Medicine in 2018, 8 years ago. Practices with Faculty Physicians and Surgeons of Llusm, a 1,308-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
8
Trained at
Loma Linda University School of Medicine
Licensed in
CA
In the registry since
2018
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

11234 Anderson St A890
Loma Linda, CA 92354-2804
Phone: (909) 558-4085
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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 A163443 (CA)

Record details

NPI number1912494808
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 17, 2018
Last updated in NPPESAugust 12, 2021
Certification dateAugust 12, 2021

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2018 (8 years in practice)
Group practice Faculty Physicians And Surgeons Of Llusm — 1308 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 patients237
Services billed 338 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

Colleagues at Faculty Physicians and Surgeons of Llusm

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1308 clinicians in the practice; 12 are shown here.

Other providers in Loma Linda