Quick answers
- Which hospitals does Alison J. Ball work at?
- Medicare's official clinician data lists Alison J. Ball at 3 hospitals: Mercy Hospital Lincoln, Mercy Hospital St Louis and St Lukes Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alison J. Ball see patients?
- Medicare's clinician data lists 4 practice locations, including O Fallon, MO and Saint Louis, MO. Call before your visit to confirm the address.
- What is Alison J. Ball's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Alison J. Ball accept Medicare assignment?
- Yes. Medicare's clinician data says Alison J. Ball 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.
- Does Alison J. Ball offer telehealth?
- Medicare's clinician data says Alison J. Ball offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Alison J. Ball?
- (314) 251-6335, as listed in official Medicare / NPI Registry data.
- What is Alison J. Ball's NPI number?
- 1427345263. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alison J. Ball works
Medicare's Facility Affiliation Data lists Alison J. Ball at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital LincolnTroy, MO · Critical Access Hospital · CCN 261319
- Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · CCN 260020
- St Lukes HospitalChesterfield, MO · Acute Care Hospital · CCN 260179
Practice locations
Addresses where Alison J. Ball is enrolled with Medicare (CMS data updated 2026-10-02).
- 2223 Technology DrO Fallon, MO 63368
- 300 Winding Woods DrO Fallon, MO 63366
- 621 S New Ballas Rd, Suite 189aSaint Louis, MO 63141 (314) 251‑6335
- 621 S New Ballas Rd, Suite 4017bSaint Louis, MO 63141 (314) 872‑9192
Group practices
Medicare enrollment lists Alison J. Ball as a member of this group (CMS data updated 2026-10-02).
- Mercy Clinic East Communities571 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in O Fallon
Clinicians with the same Medicare primary specialty in O Fallon, MO — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1427345263 |
| 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