Merry M. Alto, MD
Emergency Medicine Physician · Spokane Valley, WA
Merry M. Alto, MD is an emergency medicine physician with a practice address in Spokane Valley, Washington, and NPI 1740349414, issued on Dec 8, 2006. Check the license (Washington MD00031051, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Merry M. Alto
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- MD00031051 WA
Self-reported in NPPES; status is on the state search - Practice location
- 12606 E Mission Ave, Spokane Valley, WA 99216
- Phone
- (509) 924-6650
- Enumerated
- Dec 8, 2006
- Record last updated
- Dec 12, 2025
- Medicaid ID
- 1110212 WA
- Medicare enrollment
- Enrolled (PECOS I20050718000488); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1990
- Entity
- Type 1 · individual
Also registered at 12606 E Mission Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nichole Alexander, RPHPharmacist1093363327
- Bryan Alfaro, RNRegistered Nurse1083557458
- Callie Allen, RNInpatient Obstetric Registered Nurse1689597965
- Lyndee Arias, RNEmergency Registered Nurse1467248641
- Belen BartonRegistered Nurse1609718204
- Jacqueline Bassett, RNInpatient Obstetric Registered Nurse1689073876
Verify Merry M. Alto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00031051Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average emergency medicine physician in 2024
68 Medicare Part D claims for 49 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Okanogan County Public Hospital Dist NO 4Tonasket, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Emergency Medicine Physician providers in Washington
There are 1,459 emergency medicine physician records in Washington.
All 1,459 in Washington → Every provider in Spokane Valley →
Other emergency medicine physician records in Washington
- Jeffrey AbrahamsGig Harbor, WA1306802558
- Amer Abu-KwaikYakima, WA1982308672
- Henry Ackerman, MDEverett, WA1649965682
- Colm Acuff, DOEnumclaw, WA1487605671
- Jan Adams, MDPort Angeles, WA1548221096
- Adeyinka Adedipe, M.D.Seattle, WA1942272984
- Robert Adelman, MDEdmonds, WA1376585414
- Angus Agnew, M.D.Tacoma, WA1497140206
- Meghan Ahearn, M.D.Port Angeles, WA1568754943
- Alec Ajhar, DOTacoma, WA1659930733
Common questions
What is Merry M. Alto, MD's NPI number?
Merry M. Alto, MD's National Provider Identifier (NPI) is 1740349414, issued on Dec 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Merry M. Alto, MD located?
The NPPES record lists a practice address at 12606 E Mission Ave, Spokane Valley, WA, 99216. Phone: (509) 924-6650. Providers update this record themselves, so call before visiting.
How can I verify Merry M. Alto, MD's license?
NPPES lists Washington license number MD00031051, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Merry M. Alto, MD prescribe under Medicare Part D?
In 2024, Merry M. Alto, MD had 68 Medicare Part D claims for 49 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.