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NAOKO ONIZUKA M.D., PH.D., M.P.H.
NPI 1336672930
Orthopaedic Surgery in St Louis Park, MN

Active since April 10, 2017PECOS EnrolledAccepts Medicare Assignment
3931 LOUISIANA AVE S, ST LOUIS PARK, MN 55426(952) 993-3230(952) 993-1748 Get Directions Write a Review

NPPES record last updated: July 27, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 27, 2023, Jul 13, 2020, Jun 4, 2020 and 1 more (4 updates tracked since 2017).

About Naoko Onizuka M.d., Ph.d., M.p.h. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NAOKO ONIZUKA M.D., PH.D., M.P.H. (NPI 1336672930) is an individual orthopaedic surgery provider in St Louis Park, Minnesota, licensed in Minnesota (67089) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS, is affiliated with Park Nicollet Methodist Hospital, and maintains a secondary practice location in Minneapolis.

NPPES Registry Identity

NPI1336672930
Entity TypeIndividualFemale
Primary Taxonomy207X00000X
Provider Legal NameNAOKO ONIZUKACredential: M.D., PH.D., M.P.H.
Location Address3931 LOUISIANA AVE SSt Louis Park, MN 55426-5000
Mailing Address420 Delaware St Se, Mmc 284Minneapolis, MN 55455-0341 · (612) 626-5454 · Fax (612) 625-3238
Phone(952) 993-3230
Fax(952) 993-1748
Sole ProprietorNo
Medical School CMSOtherGraduated 2004
Enumeration DateApril 10, 2017
Last NPPES UpdateJuly 27, 20234 updates tracked since enumeration
NPPES CertifiedJuly 27, 2023
✔ NPI 1336672930 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License✔ Licensed in MN · 67089
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Also ListedInternal MedicineTaxonomy 207R00000X · License 67089 (MN)
Also ListedOrthopaedic Surgery · Orthopaedic TraumaTaxonomy 207XX0801X · License 67089 (MN)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
3931 LOUISIANA AVE S, St Louis Park, MN 55426
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Other Names 1

Former Name (1)Naoko Nishiyama M.d., Ph.d., M.p.h.

Secondary Practice Location 1

Location 1420 Delaware St SE, MMC 284Minneapolis, MN 55455-0341 · Phone (612) 626-5454 · Fax (612) 625-3238

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HealthPartners, Medica.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Naoko Onizuka M.d., Ph.d., M.p.h. 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.

PECOS PAC ID8921363888
PECOS Enrollment IDI20200720000096
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement 27236
This procedure involves treating a fracture at the top of your thigh bone. A stabilizing device or prosthetic replacement is placed to aid in healing. This helps restore mobility and function while reducing pain. The treatment aims for a quick and safe recovery.
24 services23 patients
Treatment of broken neck of thigh bone with bone implant 27245
This procedure involves repairing a fractured thigh bone by inserting a bone implant. The implant helps stabilize the bone, allowing it to heal correctly. It's performed under anesthesia and requires a hospital stay for recovery.
17 services17 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
16 services14 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
14 services14 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Park Nicollet Methodist Hospital

Acute Care Hospitals · Saint Louis Park, MN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240053
Location6500 Excelsior BlvdSaint Louis Park, MN 55426 · Hennepin County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 55426 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.82 typical visit price
range $56.00 – $168.28
Typical copayment $21.45 (range $14.00 – $42.07)
Most-billed visit code 99203
Established Patient
$69.74 typical visit price
range $18.32 – $138.04
Typical copayment $17.43 (range $4.58 – $34.51)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CAMILLE ASHLEY SCHWARZROCK NP-C
Nurse Practitioner
3931 LOUISIANA AVE S
ST LOUIS PARK, MN 55426
Hennepin County (952) 993-3230
WILL C JENSEN MD
Internal Medicine (Pulmonary Disease)
3931 LOUISIANA AVE S
SAINT LOUIS PARK, MN 55426
Hennepin County (952) 993-3123
LESLIE PRATT
Obstetrics & Gynecology (Maternal & Fetal Medicine)
3931 LOUISIANA AVE S, STE E111
ST LOUIS PARK, MN 55426
Hennepin County (952) 993-5900
AMANDA J CALVIN MD
Internal Medicine (Pulmonary Disease)
3931 LOUISIANA AVE S
ST LOUIS PARK, MN 55426
Hennepin County (952) 993-3230
MARI M UUTALA LPC
Counselor (Professional)
3931 LOUISIANA AVE S
SAINT LOUIS PARK, MN 55426
Hennepin County (952) 993-3248
BROOKE RAEANNE VOGT PHYSICIAN ASSISTANT
Physician Assistant
3931 LOUISIANA AVE S
SAINT LOUIS PARK, MN 55426
Hennepin County (952) 993-3180
DORY L NEUROCK NP
Nurse Practitioner (Family)
3931 LOUISIANA AVE S
ST LOUIS PARK, MN 55426
Hennepin County (952) 993-3123
DR. MEILING HUA PARKER MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
3931 LOUISIANA AVE S
ST LOUIS PARK, MN 55426
Hennepin County (952) 993-3230

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 Naoko Onizuka's NPI number?

The NPI number for Naoko Onizuka is 1336672930. It was assigned to this individual provider in the NPPES registry on April 10, 2017. The provider is also known as Naoko Nishiyama M.D., Ph.D., M.P.H..

Where is Naoko Onizuka located?

Naoko Onizuka practices at 3931 Louisiana Ave S, St Louis Park, MN 55426. The listed phone number is (952) 993-3230.

What is Naoko Onizuka's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Naoko Onizuka enrolled in Medicare?

Yes. Naoko Onizuka 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.

What insurance does Naoko Onizuka accept?

Health plans from HealthPartners and Medica list Naoko Onizuka as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Naoko Onizuka affiliated with any hospitals?

According to CMS data, Naoko Onizuka is affiliated with Park Nicollet Methodist Hospital.

When was this NPI record last updated?

The NPPES record for Naoko Onizuka was last updated on July 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.