Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Merry M Alto, MD

Individual provider Emergency Medicine Physician · NPI 1740349414

Merry M Alto, MD is a General Practice in Spokane Valley, Washington. Graduated from University of Washington School of Medicine in 1990, 36 years ago. Practices with Okanogan County Public Hospital Dist No 4, a 50-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
36
Trained at
University of Washington School of Medicine
Licensed in
WA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

12606 E Mission Ave
Spokane Valley, WA 99216-3421
Phone: (509) 924-6650
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 203 S Western Ave, Tonasket, WA 98855-8803 — (509) 486-2151

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence MD00031051 (WA)

Record details

NPI number1740349414
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 8, 2006
Last updated in NPPESDecember 12, 2025
Certification dateDecember 12, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL PRACTICE
Also practisesEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 1990 (36 years in practice)
Group practice Okanogan County Public Hospital Dist No 4 — 50 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Spokane Valley