Naoko Onizuka, MD

Medicare activity in 2024

Official CMS public-use data for Naoko Onizuka, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement (27236)24 services
2. Treatment of broken neck of thigh bone with bone implant (27245)17 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)16 services
4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)14 services
5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)12 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure72%
• High cholesterol68%
• Osteoporosis66%
• Arthritis60%
• Depression44%
• Anxiety38%

Hospitals where Naoko Onizuka works

Medicare's Facility Affiliation Data lists Naoko Onizuka at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Park Nicollet Methodist HospitalSaint Louis Park, MN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 240053

Practice locations

Addresses where Naoko Onizuka is enrolled with Medicare (CMS data updated October 2, 2026).

• 3931 Louisiana Ave SSt Louis Park, MN 55426 (952) 993‑3123
• 8100 Northland DrBloomington, MN 55431 (952) 831‑8742

Group practices

Medicare enrollment lists Naoko Onizuka as a member of these groups (CMS data updated October 2, 2026).

• Park Nicollet Clinic1,787 clinicians in the group
• Tria Orthopaedic Center LLC515 clinicians in the group

Specialties

• Orthopedic Surgeryprimary
• Internal Medicinealso

Find other Orthopedic Surgery doctors in Minnesota →

Other orthopedic surgeons in St Louis Park

Clinicians with the same Medicare primary specialty in St Louis Park, MN — not a recommendation.

• Brian P. Cunningham, MD
• Mark C. Wilczynski, MD
• Neil Lancaster
• Michael R. Walsh, MD
• Lisa R. Wasserman, MD
• Ross S. Paskoff, MD
• Kirk J. Aadalen, MD
• Kevin J. Mullaney, MD

All orthopedic surgeons in St Louis Park →

Other clinicians in Park Nicollet Clinic

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• John P. Oneill, MD
• Nicole A. Meier
• Brian P. Cunningham, MD
• Alecia R. Klatt, PT
• Tarrek H. Hegab, MD
• Marysue Beran, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians