Quick answers
- Which hospitals does Ashley J. Sims work at?
- Medicare's official clinician data lists Ashley J. Sims at 3 hospitals: Barnes-Jewish St Peters Hospital, Missouri Baptist Medical Center and Progress West Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ashley J. Sims see patients?
- Medicare's clinician data lists 1 practice location in O Fallon, MO. Call before your visit to confirm the address.
- What is Ashley J. Sims's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Ashley J. Sims accept Medicare assignment?
- Yes. Medicare's clinician data says Ashley J. Sims 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 Ashley J. Sims?
- (636) 344-3060, as listed in official Medicare / NPI Registry data.
- What is Ashley J. Sims's NPI number?
- 1164095311. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ashley J. Sims works
Medicare's Facility Affiliation Data lists Ashley J. Sims 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
- Missouri Baptist Medical CenterSaint Louis, MO · Acute Care Hospital · CCN 260108
- Progress West HospitalOfallon, MO · Acute Care Hospital · CCN 260219
Practice locations
Addresses where Ashley J. Sims is enrolled with Medicare (CMS data updated 2026-10-02).
- 20 Progress Point PkwyO Fallon, MO 63368 (636) 344‑3060
Group practices
Medicare enrollment lists Ashley J. Sims as a member of this group (CMS data updated 2026-10-02).
- Physician Groups LC521 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in O Fallon
Clinicians with the same Medicare primary specialty in O Fallon, MO — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | At Still University Of Health Sciences, College Of Osteo Med, Kirksville |
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1164095311 |
| 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