Quick answers
- Where does Alex S. Rier see patients?
- Medicare's clinician data lists 2 practice locations, including West Des Moines, IA and Des Moines, IA. Call before your visit to confirm the address.
- What is Alex S. Rier's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Alex S. Rier accept Medicare assignment?
- Medicare's clinician data says Alex S. Rier may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Alex S. Rier's NPI number?
- 1548907728. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Alex S. Rier is enrolled with Medicare (CMS data updated 2026-10-02).
- 4201 Westown Pkwy, Suite 236West Des Moines, IA 50266
- PO Box, Suite 180Des Moines, IA 50301
Specialties
- Anesthesiologyprimary
Other anesthesiologists in West Des Moines
Clinicians with the same Medicare primary specialty in West Des Moines, IA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1548907728 |
| 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 2026-10-02, retrieved 2026-10-29
- 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