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

William S Hamra, MD

Individual provider Pediatrics Physician · NPI 1134445596

William S Hamra, MD is a Pediatric Medicine in Riverside, California. Graduated from Loma Linda University School of Medicine in 2010, 16 years ago. Practices with Riverside Medical Clinic Inc, a 174-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
16
Trained at
Loma Linda University School of Medicine
Licensed in
CA
In the registry since
2010
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

6405 Day St
Riverside, CA 92507-0901
Phone: (951) 697-5432
Fax: (951) 697-5471
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 11234 Anderson St, Loma Linda, CA 92354-2804 — (909) 583-3850

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence A120675 (CA)

Record details

NPI number1134445596
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 10, 2010
Last updated in NPPESApril 14, 2025
Certification dateApril 14, 2025
Mailing address6405 Day St, Riverside, CA 92507-0901

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Riverside Medical Clinic Inc — 174 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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