Quick answers
- Does Edgar D. St. Amour accept Medicare assignment?
- Yes. Medicare's clinician data says Edgar D. St. Amour accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Edgar D. St. Amour see?
- In 2024, CMS data shows 2,379 Original Medicare patients and 100,770 services for Edgar D. St. Amour. This counts Original Medicare only and measures volume, not quality.
- What is Edgar D. St. Amour's NPI number?
- 1891051611. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Edgar D. St. Amour, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 2,379 |
|---|---|
| Services billed to Medicare | 100,770 |
| Different services or procedures | 218 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)52,437 services
- Injection, gadoterate meglumine, 0.1 ml (A9575)30,800 services
- Injection, propofol, 10 mg (J2704)4,404 services
- Injection, gadopiclenol, 1 ml (A9573)1,560 services
- Insertion of needle into vein for collection of blood sample (36415)671 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol70%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)60%
- Arthritis43%
- Ischemic heart disease38%
- Diabetes30%
Practice locations
Addresses where Edgar D. St. Amour is enrolled with Medicare (CMS data updated October 2, 2026).
- 8901 Carti Way, Central Arkansas Radiation Therapy InstitutLittle Rock, AR 72205 (501) 906‑3000
Group practices
Medicare enrollment lists Edgar D. St. Amour as a member of this group (CMS data updated October 2, 2026).
- Central Arkansas Radiation Therapy Institute Inc90 clinicians in the group
Specialties
- Interventional Radiologyprimary
- Diagnostic Radiologyalso
Other interventional radiologists in Little Rock
Clinicians with the same Medicare primary specialty in Little Rock, AR — not a recommendation.
Other clinicians in Central Arkansas Radiation Therapy Institute Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Arkansas College Of Medicine |
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891051611 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians