Mikio Nihira, MD
NPI 1326016114 · Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician · Riverside, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mikio Nihira, MD is a Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician provider in Riverside, CA (NPI 1326016114).
Provider details
- NPI number
- 1326016114
- Entity type
- Individual
- Primary specialty
- Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 24796 (OK)
Specialties & taxonomies
- Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) PhysicianPrimary207VF0040XLicense 24796 (OK)
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
136 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 66 | $94 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 19 | $35 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 18 | $171 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 17 | $57 |
| Insertion of Temporary Bladder Tube51701 | 16 | $45 |
Typical Medicare-allowed amounts for these services range $35–$171 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 47 | — |
| Vibegronbrand: Gemtesa | 40 | 13 |
| Estradiol | 35 | 19 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 35 | 28 |
| Mirabegronbrand: Myrbetriq | 33 | — |
| Tolterodine Tartratebrand: Tolterodine Tartrate Er | 32 | — |
| Tizanidine Hcl | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$65 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-09
- Last updated
- 2020-04-10
- Certified
- 2020-04-10
Frequently asked questions
- What is Mikio Nihira's NPI number?
- Mikio Nihira's National Provider Identifier (NPI) is 1326016114, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mikio Nihira's specialty?
- Mikio Nihira is listed in the NPPES registry with a primary specialty of Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician (Allopathic & Osteopathic Physicians).
- Where is Mikio Nihira located?
- Mikio Nihira's practice location on file with NPPES is 19330 Jesse Ln Ste 100, Riverside, CA 92508-5077.
- What is Mikio Nihira's phone number?
- The practice phone number listed in the NPPES registry for Mikio Nihira is (844) 827-8000.
- Does Mikio Nihira accept Medicare?
- Mikio Nihira is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mikio Nihira's NPI active?
- Yes — Mikio Nihira's NPI (1326016114) is active in the NPPES registry as of the last update on 2020-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.