Quick answers
- Does Steven T. Oncay accept Medicare assignment?
- Yes. Medicare's clinician data says Steven T. Oncay accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Steven T. Oncay see?
- In 2024, CMS data shows 1,206 Original Medicare patients and 6,409 services for Steven T. Oncay. This counts Original Medicare only and measures volume, not quality.
- What is Steven T. Oncay's NPI number?
- 1518944511. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Steven T. Oncay, 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.
| Original Medicare patients | 1,206 |
|---|---|
| Services billed to Medicare | 6,409 |
| Different services or procedures | 173 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)4,800 services
- X-ray of chest, 2 views (71046)191 services
- X-ray of chest, 1 view (71045)105 services
- Ct scan of chest without contrast (71250)53 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)51 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 pressure70%
- High cholesterol69%
- Arthritis47%
- Chronic kidney disease31%
- Depression29%
- Anxiety29%
Hospitals where Steven T. Oncay works
Medicare's Facility Affiliation Data lists Steven T. Oncay 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.
- Hutchinson HealthHutchinson, MN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 240187
- Olivia Hospital & ClinicOlivia, MN · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 241306
- 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 Steven T. Oncay is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 21; the Medicare profile lists all.
- 14000 Fairview DrBurnsville, MN 55337 (952) 993‑8700
- 1415 Saint Francis AveShakopee, MN 55379 (952) 993‑7750
- 15111 Twelve Oaks Ctr DrMinnetonka, MN 55305 (952) 993‑4500
- 1515 Saint Francis AveShakopee, MN 55379 (952) 993‑7750
- 15800 95th Ave NMaple Grove, MN 55369 (952) 993‑1440
Group practices
Medicare enrollment lists Steven T. Oncay 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
- Interventional Radiologyprimary
- Diagnostic Radiologyalso
Other interventional radiologists in Minnesota
Clinicians with the same Medicare primary specialty in Minnesota — not a recommendation.
Other clinicians in Park Nicollet Clinic
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of North Dakota School Of Medicine |
| Graduation year | 1994 (32 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518944511 |
| Corrections | Report an error or suggest an update → |
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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians