Naoko Onizuka, M.D., PH.D., M.P.H.
Orthopaedic Surgery Physician · St Louis Park, MN
Naoko Onizuka, M.D., PH.D., M.P.H. is an orthopaedic surgery physician with a practice address in St Louis Park, Minnesota, and NPI 1336672930, issued on Apr 10, 2017. Check the license (Minnesota 67089, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Naoko Onizuka
- Credential
- M.D., PH.D., M.P.H.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 67089 MN
Self-reported in NPPES; status is on the state search - Practice location
- 3931 Louisiana Ave S, St Louis Park, MN 55426
- Phone
- (952) 993-3230
- Enumerated
- Apr 10, 2017
- Record last updated
- Jul 27, 2023
- Fax
- (952) 993-1748
- Medicare enrollment
- Enrolled (PECOS I20200720000096); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 647 in Minnesota → Look up another NPI →
Also registered at 3931 Louisiana Ave S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth AbellNurse Practitioner1568777274
- Gavin Ashburn, PA-CPhysician Assistant1982141800
- Lindsey Bade, PHD, MS, CGCGenetic Counselor (M.S.)1417350836
- Joanna Barthell, PA-CMedical Physician Assistant1093154908
- Brent Bauman, M.D.Surgery Physician1407117328
- Claudia Baumann, M.D., PH.D.Internal Medicine Physician1689917064
Verify Naoko Onizuka in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 67089Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
58 Medicare Part D claims for 46 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 37 claims were for opioids.
Most prescribed
- Oxycodone Hcl26 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Park Nicollet ClinicSt Louis Park, MN
- Tria Orthopaedic Center LLCBloomington, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Naoko Onizuka among 647 orthopaedic surgery physician records in Minnesota
Naoko Onizuka, M.D., PH.D., M.P.H. is one of 647 orthopaedic surgery physician records with a practice address in Minnesota. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 77% of them.
- NPI issued2017 · 77% of these records are older, 19% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2004 · median 2008 among the 420 with a school on file
- Record last updated2023 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Minnesota
There are 647 orthopaedic surgery physician records in Minnesota.
All 647 in Minnesota → Every provider in St Louis Park → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Stephen Barron, MDSt Louis Park, MN 554261407897424
- Paul Cederberg, MDSt Louis Park, MN 554261336187772
- Paul DamrowSt Louis Park, MN 554261558345736
- Stephen England, MDSt Louis Park, MN 554261114968534
- Timothy Gabrielsen, MDSt Louis Park, MN 554261578651774
- Michael Hebert, M.D.St Louis Park, MN 554261467435909
- Paul Johnson, M.D.St Louis Park, MN 554261760466320
- John Kasmirski, M.D.St Louis Park, MN 554261861477473
Common questions
What is Naoko Onizuka, M.D., PH.D., M.P.H.'s NPI number?
Naoko Onizuka, M.D., PH.D., M.P.H.'s National Provider Identifier (NPI) is 1336672930, issued on Apr 10, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Naoko Onizuka, M.D., PH.D., M.P.H. located?
The NPPES record lists a practice address at 3931 Louisiana Ave S, St Louis Park, MN, 55426. Phone: (952) 993-3230. Providers update this record themselves, so call before visiting.
How can I verify Naoko Onizuka, M.D., PH.D., M.P.H.'s license?
NPPES lists Minnesota license number 67089, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Naoko Onizuka, M.D., PH.D., M.P.H. prescribe under Medicare Part D?
In 2024, Naoko Onizuka, M.D., PH.D., M.P.H. had 58 Medicare Part D claims for 46 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.