Quick answers
- Where does Mary Wallace see patients?
- Medicare's clinician data lists 3 practice locations, including Saint Louis, MO, Washington, MO and Ellisville, MO. Call before your visit to confirm the address.
- What is Mary Wallace's specialty?
- Medicare lists Occupational Therapist in Private Practice as the primary specialty.
- Does Mary Wallace accept Medicare assignment?
- Yes. Medicare's clinician data says Mary Wallace 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 Mary Wallace?
- (877) 407-3422, as listed in official Medicare / NPI Registry data.
- What is Mary Wallace's NPI number?
- 1689398141. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Mary Wallace is enrolled with Medicare (CMS data updated 2026-10-02).
- 10199 Woodfield LnSaint Louis, MO 63132 (877) 407‑3422
- 1481 Marbach DrWashington, MO 63090 (636) 239‑0594
- 15950 Manchester RdEllisville, MO 63011 (636) 220‑2748
Group practices
Medicare enrollment lists Mary Wallace as a member of these groups (CMS data updated 2026-10-02).
- Legacy Healthcare Services Inc3,223 clinicians in the group
- Fox Rehabilitation Services Ot Mo LLC17 clinicians in the group
Specialties
Find other clinicians: Occupational Therapist in Private Practice, Missouri →
Other occupational therapists in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Clinician information
| Graduation year | 2022 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689398141 |
| 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
- 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