Quick answers
- Does Landon J. Williamson accept Medicare assignment?
- Yes. Medicare's clinician data says Landon J. Williamson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Landon J. Williamson's NPI number?
- 1326830043. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Landon J. Williamson works
Medicare's Facility Affiliation Data lists Landon J. Williamson at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Prosser Memorial HospitalProsser, WA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 501312
Practice locations
Addresses where Landon J. Williamson is enrolled with Medicare (CMS data updated October 2, 2026).
- 200 Prosser Health DrProsser, WA 99350 (509) 788‑6022
Group practices
Medicare enrollment lists Landon J. Williamson as a member of this group (CMS data updated October 2, 2026).
- Prosser Public Hospital District of Benton County109 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Washington →
Other nurse anesthetists in Prosser
Clinicians with the same Medicare primary specialty in Prosser, WA — not a recommendation.
Other clinicians in Prosser Public Hospital District of Benton County
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2025 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1326830043 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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