Quick answers
- Which hospitals does Zachary D. Willmarth work at?
- Medicare's official clinician data lists Zachary D. Willmarth at 1 hospital: Grande Ronde Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Zachary D. Willmarth see patients?
- Medicare's clinician data lists 4 practice locations, including La Grande, OR and Sisters, OR. Call before your visit to confirm the address.
- What is Zachary D. Willmarth's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Zachary D. Willmarth accept Medicare assignment?
- Yes. Medicare's clinician data says Zachary D. Willmarth 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 Zachary D. Willmarth?
- (541) 963-4139, as listed in official Medicare / NPI Registry data.
- What is Zachary D. Willmarth's NPI number?
- 1730720772. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Zachary D. Willmarth works
Medicare's Facility Affiliation Data lists Zachary D. Willmarth at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Grande Ronde HospitalLa Grande, OR · Critical Access Hospital · CCN 381321
Practice locations
Addresses where Zachary D. Willmarth is enrolled with Medicare (CMS data updated 2026-10-02).
- 2011 4th StLa Grande, OR 97850 (541) 963‑4139
- 354 W Adams AveSisters, OR 97759 (541) 549‑9609
- PO BoxLa Grande, OR 97850
- PO Box, Suite 3290La Grande, OR 97850
Group practices
Medicare enrollment lists Zachary D. Willmarth as a member of these groups (CMS data updated 2026-10-02).
- Praxis Health PC171 clinicians in the group
- Grande Ronde Hospital Inc97 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in La Grande
Clinicians with the same Medicare primary specialty in La Grande, OR — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1730720772 |
| 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