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

Roger Tomihama

Individual provider Diagnostic Radiology Physician · NPI 1912199068

Roger Tomihama practises Interventional Radiology in Orange, California. Graduated from University of Hawaii John A. Burns School of Medicine in 2002, 24 years ago. Practices with Uc Regents, a 103-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
24
Trained at
University of Hawaii John A. Burns School of Medicine
Licensed in
CA
In the registry since
2007
Specialties on file
2

Practice location Address checks out

101 The City Dr S
Orange, CA 92868-3201
Phone: (714) 456-8888
Show map & directions

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) 558-4370

Specialties & licences

Vascular & Interventional Radiology Physician (primary) Taxonomy 2085R0204X · Licence A115140 (CA)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence A115140 (CA)

Record details

NPI number1912199068
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedAugust 13, 2007
Last updated in NPPESApril 16, 2025
Certification dateApril 16, 2025

Medicare enrollment

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

Medicare specialtyINTERVENTIONAL RADIOLOGY
Also practisesDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF HAWAII JOHN A. BURNS SCHOOL OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Uc Regents — 103 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients128
Services billed 261 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.

Colleagues at Uc Regents

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 103 clinicians in the practice; 12 are shown here.

Other providers in Orange