Quick answers
- Does Marilyn J. Siegel accept Medicare assignment?
- Yes. Medicare's clinician data says Marilyn J. Siegel 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 Marilyn J. Siegel's NPI number?
- 1548332802. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marilyn J. Siegel works
Medicare's Facility Affiliation Data lists Marilyn J. Siegel 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.
- St Louis Childrens HospitalSaint Louis, MO · Children's Hospital · Emergency services: listed by Medicare · CCN 263301
Practice locations
Addresses where Marilyn J. Siegel is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Childrens PlSaint Louis, MO 63110 (314) 454‑6000
- 510 S Kingshighway BlvdSaint Louis, MO 63110
- 510 S Kingshighway Blvd, Campus Box 8131St Louis, MO 63110
Group practices
Medicare enrollment lists Marilyn J. Siegel as a member of this group (CMS data updated October 2, 2026).
- Washington University3,029 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Other clinicians in Washington University
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of Ny Upstate Medical University |
| Graduation year | 1969 (57 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548332802 |
| 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