Quick answers
- Does Mohamed M. Alwan accept Medicare assignment?
- Yes. Medicare's clinician data says Mohamed M. Alwan 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 Mohamed M. Alwan see?
- In 2024, CMS data shows 261 Original Medicare patients and 416 services for Mohamed M. Alwan. This counts Original Medicare only and measures volume, not quality.
- What is Mohamed M. Alwan's NPI number?
- 1538542634. 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 Mohamed M. Alwan, 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 | 261 |
|---|---|
| Services billed to Medicare | 416 |
| Different services or procedures | 7 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)207 services
- Telehealth consultation, emergency department or initial inpatient, typically 30 minutes communicating with the patient via telehealth (G0425)142 services
- Telehealth consultation, emergency department or initial inpatient, typically 50 minutes communicating with the patient via telehealth (G0426)39 services
- Critical care, first 30-74 minutes (99291)19 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%
- Stroke or mini-stroke71%
- Arthritis54%
- Chronic kidney disease48%
- Diabetes47%
Practice locations
Addresses where Mohamed M. Alwan is enrolled with Medicare (CMS data updated October 2, 2026).
- 15740 S Outer 40 RdChesterfield, MO 63017 (636) 237‑4200
Group practices
Medicare enrollment lists Mohamed M. Alwan as a member of this group (CMS data updated October 2, 2026).
- Mercy Aco Clinical Services Inc170 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Chesterfield
Clinicians with the same Medicare primary specialty in Chesterfield, MO — not a recommendation.
Other clinicians in Mercy Aco Clinical Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1538542634 |
| 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