Aaron Kyle Villarreal, M.D.
Hospitalist Physician · Seattle, WA
Aaron Kyle Villarreal, M.D. is a hospitalist physician with a practice address in Seattle, Washington, and NPI 1891085023, issued on Apr 8, 2011. Check the license (Washington MD60475578, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Aaron Kyle Villarreal
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- MD60475578 WA
01075998A IN
Self-reported in NPPES; status is on the state search - Practice location
- 1100 9TH Ave, Seattle, WA 98101
- Phone
- (206) 341-0860
- Enumerated
- Apr 8, 2011
- Record last updated
- Nov 10, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (206) 583-2307
- Medicaid ID
- 201324390 IN
- Medicare enrollment
- Enrolled (PECOS I20151020002713); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 793 in Washington → Look up another NPI →
Also registered at 1100 9TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Barry Aaronson, MDHospitalist Physician1952418345
- David Aboulafia, MDHematology & Oncology Physician1043269392
- Deborah Abrams, M.D.Hematology & Oncology Physician1902974835
- Alvin Aceron, ARNPAdult Health Nurse Practitioner1639488562
- Ream AdeebAdult Health Nurse Practitioner1760868855
- Steven Adler, MDDiagnostic Ultrasound Physician1639108046
Verify Aaron Kyle Villarreal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60475578Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% fewer Medicare Part D claims than the average hospitalist physician in 2024
442 Medicare Part D claims for 180 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 29 claims were for opioids.
Most prescribed
- Prednisone28 claims
- Atorvastatin Calcium26 claims
- Amoxicillin-Clavulanate Potass24 claims
- Furosemide23 claims
- Cefpodoxime Proxetil20 claims
- Eliquis15 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
- Arnett Clinic LLCLafayette, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aaron Kyle Villarreal among 793 hospitalist physician records in Washington
Aaron Kyle Villarreal, M.D. is one of 793 hospitalist physician records with a practice address in Washington. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 43% of them.
- NPI issued2011 · 43% of these records are older, 52% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2011 · median 2011 among the 649 with a school on file
- Record last updated2015 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Washington
There are 793 hospitalist physician records in Washington.
All 793 in Washington → Every provider in Seattle → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Barry Aaronson, MDSeattle, WA 981011952418345
- Roger Bush, MDSeattle, WA 981011760411623
- Alvin Calderon, MDSeattle, WA 981011609985753
- Daniel Coates, MDSeattle, WA 981011730100074
- Richard Davis, MDSeattle, WA 981011720018781
- Brandee Grooms, MDSeattle, WA 981011669481925
- Thomas Gunby, MDSeattle, WA 981011144243668
- Daniel Hanson, MDSeattle, WA 981011841300167
Common questions
What is Aaron Kyle Villarreal, M.D.'s NPI number?
Aaron Kyle Villarreal, M.D.'s National Provider Identifier (NPI) is 1891085023, issued on Apr 8, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Aaron Kyle Villarreal, M.D. located?
The NPPES record lists a practice address at 1100 9TH Ave, Seattle, WA, 98101. Phone: (206) 341-0860. Providers update this record themselves, so call before visiting.
How can I verify Aaron Kyle Villarreal, M.D.'s license?
NPPES lists Washington license number MD60475578, 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 Aaron Kyle Villarreal, M.D. prescribe under Medicare Part D?
In 2024, Aaron Kyle Villarreal, M.D. had 442 Medicare Part D claims for 180 beneficiaries; the average among hospitalist physician prescribers was 521. 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.