Quick answers
- Which hospitals does Onder Orgul work at?
- Medicare's official clinician data lists Onder Orgul at 5 hospitals: Dayton General Hospital, Providence St Mary Medical Center, Pullman Regional Hospital, Syringa General Hospital and Tri-State Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Onder Orgul see patients?
- Medicare's clinician data lists 4 practice locations, including Clarkston, WA and Walla Walla, WA. Call before your visit to confirm the address.
- What is Onder Orgul's specialty?
- Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
- Does Onder Orgul accept Medicare assignment?
- Yes. Medicare's clinician data says Onder Orgul 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 Onder Orgul?
- (509) 758-5511, as listed in official Medicare / NPI Registry data.
- What is Onder Orgul's NPI number?
- 1932123601. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Onder Orgul works
Medicare's Facility Affiliation Data lists Onder Orgul 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
- Providence St Mary Medical CenterWalla Walla, WA · Acute Care Hospital · CCN 500002
- Pullman Regional HospitalPullman, WA · Critical Access Hospital · CCN 501331
- Syringa General HospitalGrangeville, ID · Critical Access Hospital · CCN 131315
- Tri-State Memorial HospitalClarkston, WA · Critical Access Hospital · CCN 501332
Practice locations
Addresses where Onder Orgul is enrolled with Medicare (CMS data updated 2026-10-02).
- 1119 Highland AveClarkston, WA 99403 (509) 758‑5511
- 1221 Highland AveClarkston, WA 99403
- 301 W Poplar St, Suite 100Walla Walla, WA 99362 (509) 897‑8100
- PO Box, Suite 189Clarkston, WA 99403
Group practices
Medicare enrollment lists Onder Orgul as a member of these groups (CMS data updated 2026-10-02).
- Providence Health and Services - Washington270 clinicians in the group
- Tri-State Memorial Hospital35 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Washington
Clinicians with the same Medicare primary specialty in Washington — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932123601 |
| 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