Quick answers
- Does Alex M. Mayeux accept Medicare assignment?
- Yes. Medicare's clinician data says Alex M. Mayeux 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 Alex M. Mayeux see?
- In 2024, CMS data shows 2,485 Original Medicare patients and 3,224 services for Alex M. Mayeux. This counts Original Medicare only and measures volume, not quality.
- What is Alex M. Mayeux's NPI number?
- 1952833212. 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 Alex M. Mayeux, 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 | 2,485 |
|---|---|
| Services billed to Medicare | 3,224 |
| Different services or procedures | 127 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- X-ray of chest, 1 view (71045)562 services
- Ct scan head or brain without contrast (70450)289 services
- X-ray of chest, 2 views (71046)283 services
- Ct scan of abdomen and pelvis with contrast (74177)253 services
- Ct scan of abdomen and pelvis without contrast (74176)218 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 cholesterol75%
- Arthritis60%
- Ischemic heart disease47%
- Diabetes39%
- COPD39%
Hospitals where Alex M. Mayeux works
Medicare's Facility Affiliation Data lists Alex M. Mayeux at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Alton Memorial HospitalAlton, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140002
- Barnes Jewish HospitalSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260032
- Hopedale HospitalHopedale, IL · Critical Access Hospital · Emergency services: listed by Medicare · CCN 141330
- HSHS St Elizabeth's HospitalO Fallon, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140187
- Memorial HospitalBelleville, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140185
Practice locations
Addresses where Alex M. Mayeux is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 1 Memorial DrAlton, IL 62002 (217) 726‑8096
- 100 Medical DrHannibal, MO 63401 (573) 221‑5250
- 1404 Cross StShiloh, IL 62269 (217) 726‑8096
- 300 Health Way DrPotosi, MO 63664 (573) 438‑5451
- 3050 Montvale Dr, Suite ASpringfield, IL 62704 (217) 726‑8096
Group practices
Medicare enrollment lists Alex M. Mayeux as a member of these groups (CMS data updated October 2, 2026).
- Washington University Physicians in Illinois Inc175 clinicians in the group
- Clinical Radiologists SC29 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Alton
Clinicians with the same Medicare primary specialty in Alton, IL — not a recommendation.
Other clinicians in Washington University Physicians in Illinois Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Louisiana State University School Of Medicine In Shreveport |
| Graduation year | 2017 (9 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952833212 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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