Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Steven Oncay

Individual provider Vascular & Interventional Radiology Physician · NPI 1518944511

Steven Oncay practises Interventional Radiology in St Louis Park, Minnesota. Graduated from University of North Dakota School of Medicine in 1994, 32 years ago. Practices with Park Nicollet Clinic, a 1,773-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
32
Trained at
University of North Dakota School of Medicine
Licensed in
MN
In the registry since
2005
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Practice location Address checks out

6500 Excelsior Blvd
St Louis Park, MN 55426-4702 Not confirmed with CMS for 14 years — call before visiting
Phone: (952) 993-3246
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Vascular & Interventional Radiology Physician (primary) Taxonomy 2085R0204X · Licence 43753 (MN)

Record details

NPI number1518944511
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedDecember 30, 2005
Last updated in NPPESMarch 6, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERVENTIONAL RADIOLOGY
Also practisesDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF NORTH DAKOTA SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Group practice Park Nicollet Clinic — 1773 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations21 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Leg revascularization (restoring blood flow) 1–10 times
Removal of skin lesions 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients1,206
Services billed 6,409 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Park Nicollet Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1773 clinicians in the practice; 12 are shown here.

Other providers in St Louis Park