Doctor profile · Federal record

Dr. Leo Flynn, MD

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Rapid City, SD

  • NPI 1831149954
  • Accepts Medicare
  • MIPS 99.0 / 100 · 2023
  • 28 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2929 5Th St Ste 100
Rapid City, SD 577017355
(605) 342-2852
fax (605) 342-3930
Mailing address
5625 Blue Stem CT
Rapid City, SD 577028990

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
September 26, 2013
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
South Dakota #5393

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1831149954. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
10,537
Distinct HCPCS
10
Medicare allowed
$577,904
HCPCS Description Services Patients Avg allowed
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml 4,844 53 $0
A9579 Injection, gadolinium-based magnetic resonance contrast agent, not otherwise specified (nos), per ml 774 53 $2
71045 X-ray of chest, 1 view 772 659 $9
74177 Ct scan of abdomen and pelvis with contrast 274 262 $85
70450 Ct scan head or brain without contrast 250 236 $39
71046 X-ray of chest, 2 views 219 209 $10
71046 X-ray of chest, 2 views 212 207 $10
78815 Nuclear medicine study from skull base to mid-thigh with ct scan 153 134 $1,575
A9552 Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries 145 126 $353
71260 Ct scan of chest with contrast 143 138 $52

In context: peer comparison

Among 5 peers in this city , average services per provider: 96. This provider delivers 110× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Leo Flynn's medical specialty?
Dr. Leo Flynn practices Diagnostic Radiology Physician in Rapid City, SD.
Where does Dr. Leo Flynn practice?
Dr. Leo Flynn practices at 2929 5Th St Ste 100, Rapid City, SD 577017355. Office phone: 6053422852.
What is Dr. Leo Flynn's NPI?
Dr. Leo Flynn's National Provider Identifier (NPI) is 1831149954, issued by NPPES.
Does Dr. Leo Flynn accept Medicare assignment?
Yes. Dr. Leo Flynn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Leo Flynn commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Injection, gadolinium-based magnetic resonance contrast agent, not otherwise specified (nos), per ml (HCPCS A9579); X-ray of chest, 1 view (HCPCS 71045). Source: CMS Medicare Physician & Other Practitioners file.