Quick answers
- Which hospitals does Matthew M. Walker work at?
- Medicare's official clinician data lists Matthew M. Walker at 2 hospitals: Othello Community Hospital and Samaritan Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew M. Walker see patients?
- Medicare's clinician data lists 2 practice locations, including Othello, WA and Mattawa, WA. Call before your visit to confirm the address.
- What is Matthew M. Walker's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Matthew M. Walker accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew M. Walker 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 Matthew M. Walker's NPI number?
- 1508299124. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew M. Walker works
Medicare's Facility Affiliation Data lists Matthew M. Walker at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Othello Community HospitalOthello, WA · Critical Access Hospital · CCN 501318
- Samaritan HospitalMoses Lake, WA · Acute Care Hospital · CCN 500033
Practice locations
Addresses where Matthew M. Walker is enrolled with Medicare (CMS data updated 2026-10-02).
- 1515 E Columbia StOthello, WA 99344
- 601 Government WayMattawa, WA 99349
Group practices
Medicare enrollment lists Matthew M. Walker as a member of this group (CMS data updated 2026-10-02).
- Columbia Basin Health Association42 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Othello
Clinicians with the same Medicare primary specialty in Othello, WA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1508299124 |
| 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