Doctor profile · Federal record

Dr. Ian Monast, DO

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Diagnostic Radiology Physician · Saint Louis, MO

  • NPI 1780033241
  • Accepts Medicare
  • 10 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
510 S Kingshighway Blvd, Dept Radiology
Saint Louis, MO 631101016
(314) 362-7200
fax (314) 747-4189
Mailing address
660 S Euclid Ave, Cb 8131
Saint Louis, MO 631101010

Credentials & registration

NPPES · NUCC
NPI registered
June 2016 — 10 yrs on file
Profile last updated
December 11, 2025
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State licenses (2)
New York #333028 · Missouri #2021015241

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1780033241. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
31,911
Distinct HCPCS
10
Medicare allowed
$567,231
HCPCS Description Services Patients Avg allowed
A9575 Injection, gadoterate meglumine, 0.1 ml 15,510 94 $0
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml 10,623 119 $0
71045 X-ray of chest, 1 view 980 873 $9
70450 Ct scan head or brain without contrast 721 648 $42
77080 Dxa bone density measurement of hip, pelvis, spine 262 262 $40
74177 Ct scan of abdomen and pelvis with contrast 240 231 $92
71250 Ct scan of chest without contrast 227 217 $54
74176 Ct scan of abdomen and pelvis without contrast 202 195 $88
93970 Ultrasound study of arm or leg veins with compression and maneuvers 191 188 $36
71275 Ct scan of blood vessels of chest with contrast 174 172 $90

In context: peer comparison

Among 146 peers in Saint Louis Diagnostic Radiology Physician, average services per provider: 96. This provider delivers 332× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ian Monast's medical specialty?
Dr. Ian Monast practices Diagnostic Radiology Physician in Saint Louis, MO.
Where does Dr. Ian Monast practice?
Dr. Ian Monast practices at 510 S Kingshighway Blvd, Saint Louis, MO 631101016. Office phone: 3143627200.
What is Dr. Ian Monast's NPI?
Dr. Ian Monast's National Provider Identifier (NPI) is 1780033241, issued by NPPES.
Does Dr. Ian Monast accept Medicare assignment?
Yes. Dr. Ian Monast accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ian Monast 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); X-ray of chest, 1 view (HCPCS 71045). Source: CMS Medicare Physician & Other Practitioners file.