Rex Villanueva, D.O.
Emergency Medicine Physician · Issaquah, WA
Rex Villanueva, D.O. is an emergency medicine physician with a practice address in Issaquah, Washington, and NPI 1417244385, issued on Jun 29, 2011. Check the license (Washington OP60455082, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Rex Villanueva
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- OP60455082 WA
Self-reported in NPPES; status is on the state search - Practice location
- 751 NE Blakely Dr, Issaquah, WA 98029
- Phone
- (425) 394-0610
- Enumerated
- Jun 29, 2011
- Record last updated
- Feb 21, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140912001215); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 751 NE Blakely Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chiazor Akusoba, M.D.Obstetrics & Gynecology Physician1104261064
- Chandra AllmendingerPharmacist1831470202
- Amy Anton, PA-CGastroenterology Physician1932121878
- Cheryl Axford-Lockhart, ARNPWomen's Health Nurse Practitioner1447259692
- Morris Chang, M.D.Sleep Medicine (Psychiatry & Neurology) Physician1164420428
- Bella Charurat, PHARMDPharmacist1144528282
Verify Rex Villanueva in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP60455082Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average emergency medicine physician in 2024
177 Medicare Part D claims for 116 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 39 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen20 claims
- Oxycodone Hcl14 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 2 group practices
- Eastside Emergency Physicians PLLCIssaquah, WA
- Swedish Health ServicesRedmond, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
20 emergency medicine physician records list a practice address in Issaquah
They are 20 of the 1,727 NPPES records with a practice address in Issaquah, and 1,459 emergency medicine physician records in Washington.
All 20 in Issaquah → All 1,459 in Washington → Every provider in Issaquah →
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 Rex Villanueva, D.O.'s NPI number?
Rex Villanueva, D.O.'s National Provider Identifier (NPI) is 1417244385, issued on Jun 29, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Rex Villanueva, D.O. located?
The NPPES record lists a practice address at 751 NE Blakely Dr, Issaquah, WA, 98029. Phone: (425) 394-0610. Providers update this record themselves, so call before visiting.
How can I verify Rex Villanueva, D.O.'s license?
NPPES lists Washington license number OP60455082, 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 Rex Villanueva, D.O. prescribe under Medicare Part D?
In 2024, Rex Villanueva, D.O. had 177 Medicare Part D claims for 116 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.