Doctor profile · Federal record

Dr. John Kosiak, Mn

Radiation Oncology Physician · Coon Rapids, MN

  • NPI 1033101886
  • 21 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
11850 Blackfoot St Nw Ste 150
Coon Rapids, MN 554332583
(763) 433-0221
fax (763) 433-0235
Mailing address
7401 Metro Blvd Ste 210
Edina, MN 554393086

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
November 28, 2023
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
Minnesota #27894
Medicaid (2)
WI #30572500 · MN #856370500

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1033101886. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,832
Distinct HCPCS
10
Medicare allowed
$410,631
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 506 45 $121
G6015 Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session 478 41 $365
G6012 Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev 255 37 $238
77336 Continuing radiation therapy consultation per week 136 38 $86
77427 Radiation treatment management, 5 treatment sessions 116 41 $185
77334 Design and construction of complex radiation treatment device 101 32 $125
77300 Calculation of radiation therapy dose 69 25 $65
77263 Complex radiation therapy planning 31 29 $163
77290 Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 23 19 $457
77417 X-ray during radiation therapy 21 13 $14

In context: peer comparison

Among 2 peers in Coon Rapids Radiation Oncology Physician, average services per provider: 117. This provider delivers 16× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
13
Patients
0
Total drug cost
$349
Drug Type Claims Patients Total cost
Memantine Hcl Generic 13 0 $349

Frequently asked questions

Auto-generated from federal data
What is Dr. John Kosiak's medical specialty?
Dr. John Kosiak practices Radiation Oncology Physician in Coon Rapids, MN.
Where does Dr. John Kosiak practice?
Dr. John Kosiak practices at 11850 Blackfoot St Nw Ste 150, Coon Rapids, MN 554332583. Office phone: 7634330221.
What is Dr. John Kosiak's NPI?
Dr. John Kosiak's National Provider Identifier (NPI) is 1033101886, issued by NPPES.
What procedures does Dr. John Kosiak commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc (HCPCS G6015); Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev (HCPCS G6012). Source: CMS Medicare Physician & Other Practitioners file.