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

Mikio A Nihira, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1326016114

Mikio A Nihira, MD practises Obstetrics/Gynecology in Riverside, California. Graduated from University of California, Geffen School of Medicine in 1994, 32 years ago. Practices with Seven Star Medical Group, Inc, a 14-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
32
Trained at
University of California, Geffen School of Medicine
Licensed in
OK
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

19330 Jesse Ln Ste 100
Riverside, CA 92508-5077
Phone: (844) 827-8000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician (primary) Taxonomy 207VF0040X · Licence 24796 (OK)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 24796 (OK)

Record details

NPI number1326016114
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 9, 2006
Last updated in NPPESApril 10, 2020
Certification dateApril 10, 2020

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Group practice Seven Star Medical Group, Inc. — 14 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 patients67
Services billed 222 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 Seven Star Medical Group, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 14 clinicians in the practice; 12 are shown here.

Other providers in Riverside