Quick answers
- Does Angela N. Croessman-Marshall accept Medicare assignment?
- Yes. Medicare's clinician data says Angela N. Croessman-Marshall 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.
- What is Angela N. Croessman-Marshall's NPI number?
- 1023994274. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Angela N. Croessman-Marshall works
Medicare's Facility Affiliation Data lists Angela N. Croessman-Marshall 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.
- SSM Health Saint Louis University HospitalSaint Louis, MO · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 260105
Practice locations
Addresses where Angela N. Croessman-Marshall is enrolled with Medicare (CMS data updated October 2, 2026).
- 1201 S Grand BlvdSaint Louis, MO 63104 (314) 617‑2000
- 1215 Vandalia StCollinsville, IL 62234 (618) 343‑6015
- 3 Saint Elizabeth BlvdO Fallon, IL 62269 (618) 641‑5803
Group practices
Medicare enrollment lists Angela N. Croessman-Marshall as a member of these groups (CMS data updated October 2, 2026).
- SSM Health Care Group940 clinicians in the group
- HSHS Medical Group Inc219 clinicians in the group
- Southern Illinois Healthcare Foundation Inc119 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Other clinicians in SSM Health Care Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2025 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023994274 |
| 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
- 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