Doctor profile · Federal record

Dr. Ryan Nowak, MD

Radiation Oncology Physician (CMS: Radiation Oncology) · Student in an Organized Health Care Education/Training Program · Sioux Falls, SD

  • NPI 1265691133
  • Accepts Medicare
  • MIPS 76.7 / 100 · 2023
  • 18 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1309 W 17Th St
Sioux Falls, SD 571044663
(605) 328-6001
fax (605) 328-6045
Mailing address
Po Box 5074
Sioux Falls, SD 571175074

Credentials & registration

NPPES · NUCC
NPI registered
June 2008 — 18 yrs on file
Profile last updated
August 26, 2014
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
South Dakota #9128

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1265691133. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,883
Distinct HCPCS
10
Medicare allowed
$162,761
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 573 120 $44
77300 Calculation of radiation therapy dose 256 63 $32
77334 Design and construction of complex radiation treatment device 211 70 $60
G6002 Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy 208 68 $20
77427 Radiation treatment management, 5 treatment sessions 163 76 $188
77263 Complex radiation therapy planning 70 67 $164
99205 New patient office or other outpatient visit, 60-74 minutes 59 59 $173
77338 Design and construction of radiation treatment device for high precision radiation therapy 49 43 $224
99215 Established patient office or other outpatient visit, 40-54 minutes 49 41 $138
77301 High precision radiation therapy planning 45 43 $417

In context: peer comparison

Among 7 peers in Sioux Falls Radiation Oncology Physician, average services per provider: 130. This provider delivers 14× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
17
Patients
0
Total drug cost
$373
Drug Type Claims Patients Total cost
Memantine Hcl Generic 17 0 $373

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ryan Nowak's medical specialty?
Dr. Ryan Nowak practices Radiation Oncology Physician in Sioux Falls, SD.
Where does Dr. Ryan Nowak practice?
Dr. Ryan Nowak practices at 1309 W 17Th St, Sioux Falls, SD 571044663. Office phone: 6053286001.
What is Dr. Ryan Nowak's NPI?
Dr. Ryan Nowak's National Provider Identifier (NPI) is 1265691133, issued by NPPES.
Does Dr. Ryan Nowak accept Medicare assignment?
Yes. Dr. Ryan Nowak accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ryan Nowak commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Calculation of radiation therapy dose (HCPCS 77300); Design and construction of complex radiation treatment device (HCPCS 77334). Source: CMS Medicare Physician & Other Practitioners file.