MERRY M ALTO MD
NPI 1740349414
Emergency Medicine in Spokane Valley, WA
About Merry M Alto Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MERRY M ALTO MD (NPI 1740349414) is an individual emergency medicine provider in Spokane Valley, Washington, licensed in Washington (MD00031051) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS, is affiliated with North Valley Hospital, and maintains a secondary practice location in Tonasket.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Merry M Alto Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Valley Hospital
Critical Access Hospitals · Tonasket, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 99216 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SPOKANE VALLEY, WA 99216
SPOKANE VALLEY, WA 99216
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Merry Alto's NPI number?
The NPI number for Merry Alto is 1740349414. It was assigned to this individual provider in the NPPES registry on December 8, 2006.
Where is Merry Alto located?
Merry Alto practices at 12606 E Mission Ave, Spokane Valley, WA 99216. The listed phone number is (509) 924-6650.
What is Merry Alto's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Merry Alto enrolled in Medicare?
Yes. Merry Alto is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Is Merry Alto affiliated with any hospitals?
According to CMS data, Merry Alto is affiliated with North Valley Hospital.
When was this NPI record last updated?
The NPPES record for Merry Alto was last updated on December 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Merry M Alto, MD · NPI 1740349414
Emergency Medicine physician in Spokane Valley, Washington. Individual provider, active in the CMS NPPES registry since December 8, 2006.
## Identity
- **NPI:** 1740349414 (Entity type: Individual)
- **Enumerated:** December 8, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD00031051 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 12606 E MISSION AVE, Spokane Valley, WA 99216-3421
- **Phone:** (509) 924-6650
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** University Of Washington School Of Medicine, class of 1990
## Record status
- **NPPES last updated:** December 12, 2025
- **Other identifiers:** Other P00223802; Medicaid 1110212 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1740349414) · Data from the CMS NPPES public registry.