Merry M. Alto, MD

Hospitals where Merry M. Alto works

Medicare's Facility Affiliation Data lists Merry M. Alto 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.

• North Valley HospitalTonasket, WA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 501321

Practice locations

Addresses where Merry M. Alto is enrolled with Medicare (CMS data updated October 2, 2026).

• 203 S Western AveTonasket, WA 98855 (509) 486‑2151

Group practices

Medicare enrollment lists Merry M. Alto as a member of this group (CMS data updated October 2, 2026).

• Okanogan County Public Hospital Dist No 442 clinicians in the group

Specialties

• General Practiceprimary
• Emergency Medicinealso

Find other General Practice doctors in Washington →

Other general practitioners in Washington

Clinicians with the same Medicare primary specialty in Washington — not a recommendation.

• Collette Pratt, MD
• David E. Little, MD
• Chloe Waham, DO
• Alanna L. Sandack, DO
• Leland Teng, MD
• Timothy J. Joos, MD
• Oksana Nesterenko, MD
• Michael A. Santoro, MD

All general practitioners in Washington →

Other clinicians in Okanogan County Public Hospital Dist No 4

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Carlton F. Roos, MD
• Thomas Dreher, DO
• Caroline F. Howell, PA
• Farhad H. Alrashedy, MD
• Marc S. Bracy, MD
• Mark A. Scott, DO

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
5. Medicare Care Compare — official Medicare tool to look up clinicians