Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Naoko Onizuka, M.D., PH.D., M.P.H.

Orthopaedic Surgery Physician in St Louis Park, MN · enumerated 2017 · practices at Park Nicollet Health Care Products.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1336672930

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Registry record

Entity type Individual (Type 1)

Name Naoko Onizuka

Credential M.D., PH.D., M.P.H.

Sex Female

Practice address 3931 Louisiana Ave S, St Louis Park, MN, 55426

Phone (952) 993-3230

Fax (952) 993-1748

Enumeration date Apr 10, 2017

Last updated in NPPES Jul 27, 2023

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 67089 (MN) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 67089 (MN) Secondary

207XX0801X Orthopaedic Trauma Physician Allopathic & Osteopathic Physicians · License 67089 (MN) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Naoko Onizuka?

The National Provider Identifier (NPI) for Naoko Onizuka is 1336672930, a Type 1 (individual) record in the CMS NPPES registry.

Where does Naoko Onizuka practice?

The practice location on file with NPPES is in St Louis Park, MN. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-27.