Quick answers
- Which hospitals does David A. Yam work at?
- Medicare's official clinician data lists David A. Yam at 5 hospitals: Dayton General Hospital, Good Shepherd Medical Center, Prosser Memorial Hospital, Providence St Mary Medical Center and Wallowa Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David A. Yam see patients?
- Medicare's clinician data lists 2 practice locations, including Benton City, WA and Prosser, WA. Call before your visit to confirm the address.
- What is David A. Yam's specialty?
- Medicare lists Neurosurgery as the primary specialty.
- Does David A. Yam accept Medicare assignment?
- Yes. Medicare's clinician data says David A. Yam 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 David A. Yam?
- (509) 588-4075, as listed in official Medicare / NPI Registry data.
- What is David A. Yam's NPI number?
- 1649495896. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David A. Yam works
Medicare's Facility Affiliation Data lists David A. Yam at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Dayton General HospitalDayton, WA · Critical Access Hospital · CCN 501302
- Good Shepherd Medical CenterHermiston, OR · Critical Access Hospital · CCN 381325
- Prosser Memorial HospitalProsser, WA · Critical Access Hospital · CCN 501312
- Providence St Mary Medical CenterWalla Walla, WA · Acute Care Hospital · CCN 500002
- Wallowa Memorial HospitalEnterprise, OR · Critical Access Hospital · CCN 381306
Practice locations
Addresses where David A. Yam is enrolled with Medicare (CMS data updated 2026-10-02).
- 1105 Dale AveBenton City, WA 99320 (509) 588‑4075
- 200 Prosser Health DrProsser, WA 99350 (509) 788‑6022
Group practices
Medicare enrollment lists David A. Yam as a member of this group (CMS data updated 2026-10-02).
- Prosser Public Hospital District of Benton County109 clinicians in the group
Specialties
- Neurosurgeryprimary
Other neurosurgeons in Washington
Clinicians with the same Medicare primary specialty in Washington — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Tennessee, Hsc, College Of Medicine |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649495896 |
| 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