MIKIO A NIHIRA MD
NPI 1326016114
Obstetrics & Gynecology - Urogynecology and Reconstructive Pelvic Surgery in Riverside, CA
About Mikio A Nihira Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MIKIO A NIHIRA MD (NPI 1326016114) is an individual urogynecology and reconstructive pelvic surgery provider in Riverside, California, licensed in Oklahoma (24796) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1994).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mikio A Nihira Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Mikio Nihira reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Colton, CA 92324
- Reassigned Medicare billing, California enrollment
- 21 clinicians in this Medicare group
Hemet, CA 92543
- Reassigned Medicare billing, California enrollment
- 26 clinicians in this Medicare group
Hemet, CA 92543
- Reassigned Medicare billing, California enrollment
- 26 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92508 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
RIVERSIDE, CA 92508
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mikio Nihira's NPI number?
The NPI number for Mikio Nihira is 1326016114. It was assigned to this individual provider in the NPPES registry on March 9, 2006.
Where is Mikio Nihira located?
Mikio Nihira practices at 19330 Jesse Ln Ste 100, Riverside, CA 92508. The listed phone number is (844) 827-8000.
What is Mikio Nihira's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Urogynecology and Reconstructive Pelvic Surgery, with taxonomy code 207VF0040X.
Is Mikio Nihira enrolled in Medicare?
Yes. Mikio Nihira is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mikio Nihira's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mikio Nihira reassigns Medicare benefits to 3 organizations: Valley Obstetrics & Gynecology Medical Group, Inc. (Colton, CA), Seven Star Medical Group Inc. (Hemet, CA) and Apex Healthcare Medical Center Inc (Hemet, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mikio Nihira's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mikio Nihira was last updated on April 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mikio A Nihira, MD · NPI 1326016114
Urogynecology and Reconstructive Pelvic Surgery physician in Riverside, California. Individual provider, active in the CMS NPPES registry since March 9, 2006.
## Identity
- **NPI:** 1326016114 (Entity type: Individual)
- **Enumerated:** March 9, 2006
- **Primary specialty:** Obstetrics & Gynecology - Urogynecology and Reconstructive Pelvic Surgery · taxonomy 207VF0040X
- **State license:** 24796 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 19330 JESSE LN STE 100, Riverside, CA 92508-5077
- **Phone:** (844) 827-8000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Valley Obstetrics & Gynecology Medical Group, Inc. (NPI 1144304817, Colton, CA); Seven Star Medical Group Inc. (NPI 1982207064, Hemet, CA); Apex Healthcare Medical Center Inc (NPI 1811193618, Hemet, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 1994
## Record status
- **NPPES last updated:** April 10, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1326016114) · Data from the CMS NPPES public registry.