Doctor profile · Federal record

Dr. Kirby Clark, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Diagnostic Radiology Physician · Diagnostic Radiology Physician · Waterloo, IA

  • NPI 1407893795
  • Accepts Medicare
  • 31 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
4006 Johnathan St
Waterloo, IA 507019387
(319) 236-2700
Additional location
660 N Westmoreland RD
Lake Forest, IL 600451659
(847) 535-7480
Mailing address
Po Box 2758
Waterloo, IA 507042758

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
November 21, 2023
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State licenses (3)
Iowa #35956 · Wisconsin #42049-20 · Illinois #036126457

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1407893795. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
34,452
Distinct HCPCS
10
Medicare allowed
$169,158
HCPCS Description Services Patients Avg allowed
A9575 Injection, gadoterate meglumine, 0.1 ml 20,101 107 $0
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml 12,000 136 $0
72148 Mri scan of lower spinal canal without contrast 198 98 $89
76705 Limited ultrasound scan of abdomen 191 152 $28
73721 Mri scan of leg joint without contrast 156 76 $95
73221 Mri scan of arm joint without contrast 150 67 $95
74177 Ct scan of abdomen and pelvis with contrast 145 72 $145
70551 Mri scan of brain without contrast 111 57 $94
36415 Insertion of needle into vein for collection of blood sample 91 90 $8
82565 Blood creatinine level 91 90 $5

In context: peer comparison

Among 3 peers in this city , average services per provider: 224. This provider delivers 154× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Kirby Clark's medical specialty?
Dr. Kirby Clark practices Diagnostic Radiology Physician in Waterloo, IA.
Where does Dr. Kirby Clark practice?
Dr. Kirby Clark practices at 4006 Johnathan St, Waterloo, IA 507019387. Office phone: 3192362700.
What is Dr. Kirby Clark's NPI?
Dr. Kirby Clark's National Provider Identifier (NPI) is 1407893795, issued by NPPES.
Does Dr. Kirby Clark accept Medicare assignment?
Yes. Dr. Kirby Clark accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kirby Clark commonly perform?
Top Medicare-reported procedures in 2023: Injection, gadoterate meglumine, 0.1 ml (HCPCS A9575); Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Mri scan of lower spinal canal without contrast (HCPCS 72148). Source: CMS Medicare Physician & Other Practitioners file.