John Kosiak, MN
NPI 1033101886 · Radiation Oncology Physician · Coon Rapids, MN
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Kosiak, MN is a Radiation Oncology Physician provider in Coon Rapids, MN (NPI 1033101886).
Provider details
- NPI number
- 1033101886
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MN
- Sex
- Male
- Sole proprietor
- No
- License
- 27894 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
620 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 174 | $118 |
| Intensity Modulated Treatment Delivery, Single Or Multiple Fields/Arcs,via Narrow Spatially and Temporally Modulated Beams, Binary, Dynamic Mlc, Per Treatment SessionG6015 | 168 | $355 |
| Radiation Treatment Delivery,3 Or More Separate Treatment Areas, Custom Blocking, Tangential Ports, Wedges, Rotational Beam, Compensators, Electron Beam; 6-10 MevG6012 | 68 | $230 |
| Continuing Radiation Therapy Consultation Per Week77336 | 56 | $87 |
| Design and Construction of Complex Radiation Treatment Device77334 | 45 | $124 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 42 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-18
- Last updated
- 2023-11-28
- Certified
- 2023-11-28
Frequently asked questions
- What is John Kosiak's NPI number?
- John Kosiak's National Provider Identifier (NPI) is 1033101886, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Kosiak's specialty?
- John Kosiak is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is John Kosiak located?
- John Kosiak's practice location on file with NPPES is 11850 Blackfoot St Nw Ste 150, Coon Rapids, MN 55433-2583.
- What is John Kosiak's phone number?
- The practice phone number listed in the NPPES registry for John Kosiak is (763) 433-0221.
- Does John Kosiak accept Medicare?
- John Kosiak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Kosiak's NPI active?
- Yes — John Kosiak's NPI (1033101886) is active in the NPPES registry as of the last update on 2023-11-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.