Quick answers
- Which hospitals does William Feinstein work at?
- Medicare's official clinician data lists William Feinstein at 2 hospitals: Missouri Baptist Medical Center and St Lukes Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William Feinstein see patients?
- Medicare's clinician data lists 3 practice locations, including Columbia, IL, Saint Louis, MO and Fenton, MO. Call before your visit to confirm the address.
- What is William Feinstein's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does William Feinstein accept Medicare assignment?
- Yes. Medicare's clinician data says William Feinstein 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 William Feinstein?
- (618) 281-3300, as listed in official Medicare / NPI Registry data.
- What is William Feinstein's NPI number?
- 1144373341. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William Feinstein works
Medicare's Facility Affiliation Data lists William Feinstein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Missouri Baptist Medical CenterSaint Louis, MO · Acute Care Hospital · CCN 260108
- St Lukes HospitalChesterfield, MO · Acute Care Hospital · CCN 260179
Practice locations
Addresses where William Feinstein is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 Eleven S, Suite 3cColumbia, IL 62236 (618) 281‑3300
- 1050 Old Des Peres RdSaint Louis, MO 63131 (314) 569‑0612
- 1055 Bowles AveFenton, MO 63026 (636) 203‑9700
Group practices
Medicare enrollment lists William Feinstein as a member of this group (CMS data updated 2026-10-02).
- Orthopedic Associates LLC14 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Medical school | Saint Louis University School Of Medicine |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144373341 |
| 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