Naoko Onizuka, M.D., PH.D., M.P.H.
NPI 1336672930 · Orthopaedic Surgery Physician · St Louis Park, MN
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Naoko Onizuka, M.D., PH.D., M.P.H. is a Orthopaedic Surgery Physician provider in St Louis Park, MN (NPI 1336672930).
Provider details
- NPI number
- 1336672930
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D., M.P.H.
- Sex
- Female
- Sole proprietor
- No
- License
- 67089 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
83 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Treatment of Upper End of Broken Thigh Bone With Placement of Stabilizing Device Or Prosthetic Replacement27236 | 24 | $1,105 |
| Treatment of Broken Neck of Thigh Bone With Bone Implant27245 | 17 | $1,113 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 16 | $124 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 14 | $122 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 12 | $160 |
Typical Medicare-allowed amounts for these services range $122–$1,113 (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 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 26 | 21 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 420 Delaware St SeMmc 284Minneapolis, MN 55455-0341Phone: (612) 626-5454Fax: (612) 625-3238
Registry dates
- Enumerated
- 2017-04-10
- Last updated
- 2023-07-27
- Certified
- 2023-07-27
Frequently asked questions
- What is Naoko Onizuka's NPI number?
- Naoko Onizuka's National Provider Identifier (NPI) is 1336672930, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Naoko Onizuka's specialty?
- Naoko Onizuka is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Naoko Onizuka located?
- Naoko Onizuka's practice location on file with NPPES is 3931 Louisiana Ave S, St Louis Park, MN 55426-5000.
- What is Naoko Onizuka's phone number?
- The practice phone number listed in the NPPES registry for Naoko Onizuka is (952) 993-3230.
- Does Naoko Onizuka accept Medicare?
- Naoko Onizuka is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Naoko Onizuka's NPI active?
- Yes — Naoko Onizuka's NPI (1336672930) is active in the NPPES registry as of the last update on 2023-07-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.