Quick answers
- Which hospitals does Michael W. Willman work at?
- Medicare's official clinician data lists Michael W. Willman at 2 hospitals: Barnes-Jewish St Peters Hospital and Progress West Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael W. Willman see patients?
- Medicare's clinician data lists 1 practice location in Saint Peters, MO. Call before your visit to confirm the address.
- What is Michael W. Willman's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Michael W. Willman accept Medicare assignment?
- Yes. Medicare's clinician data says Michael W. Willman accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Michael W. Willman?
- (314) 362-9123, as listed in official Medicare / NPI Registry data.
- What is Michael W. Willman's NPI number?
- 1427494251. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael W. Willman works
Medicare's Facility Affiliation Data lists Michael W. Willman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Barnes-Jewish St Peters HospitalSaint Peters, MO · Acute Care Hospital · CCN 260191
- Progress West HospitalOfallon, MO · Acute Care Hospital · CCN 260219
Practice locations
Addresses where Michael W. Willman is enrolled with Medicare (CMS data updated 2026-10-02).
- 10 Hospital DrSaint Peters, MO 63376 (314) 362‑9123
Group practices
Medicare enrollment lists Michael W. Willman as a member of this group (CMS data updated 2026-10-02).
- Washington University Community Specialists LLC105 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Saint Peters
Clinicians with the same Medicare primary specialty in Saint Peters, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Saint Louis University School Of Medicine |
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427494251 |
| 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 2026-10-02, retrieved 2026-10-29
- 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