Aileen May Arguelles Del Castillo, MD
Hospitalist Physician · Riverton, UT
Aileen May Arguelles Del Castillo, MD is a hospitalist physician with a practice address in Riverton, Utah, and NPI 1205068749, issued on Aug 18, 2009. Check the license (Utah 9740415-1205, as entered in NPPES) on the Utah Medical Licensing Board; the Medicare figures below come from public CMS files.
- Name
- Aileen May Arguelles Del Castillo
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 9740415-1205 UT
4301094111 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3723 W 12600 S, Riverton, UT 84065
- Phone
- (801) 507-4384
- Enumerated
- Aug 18, 2009
- Record last updated
- Apr 8, 2026
- Medicaid ID
- 1205068749 MI
- Medicare enrollment
- Enrolled (PECOS I20160706001685); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 285 in Utah → Look up another NPI →
Also registered at 3723 W 12600 S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lyle Berry, M.D.Hospitalist Physician1871730036
- Jane Bowman, MDObstetrics & Gynecology Physician1073621611
- Nellie Bubb, OTR/LOccupational Therapist1801440391
- John Capener, D.O.Gastroenterology Physician1750355624
- Shauna ChrissFamily Nurse Practitioner1740529973
- Keeshia Christensen, PHARMDPharmacist1710419908
Verify Aileen May Arguelles Del Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersUtah Medical Licensing Board
Search for license 9740415-1205Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average hospitalist physician in 2024
162 Medicare Part D claims for 96 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Cefdinir20 claims
- Prednisone11 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
- Ihc Health Services IncRiverton, UT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aileen May Arguelles Del Castillo among 285 hospitalist physician records in Utah
Aileen May Arguelles Del Castillo, MD is one of 285 hospitalist physician records with a practice address in Utah. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 37% of them.
- NPI issued2009 · 37% of these records are older, 60% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated2006 · median 2012 among the 225 with a school on file
- Record last updated2026 · 39% 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 Utah practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Utah
There are 285 hospitalist physician records in Utah.
All 285 in Utah → Every provider in Riverton → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Lyle Berry, M.D.Riverton, UT 840651871730036
- Yoon Ju Kim-Butterfield, MDRiverton, UT 840651760649560
- Lindsay Klimes, MDRiverton, UT 840651023140639
- Richard Patten, M.D.Riverton, UT 840651134307499
- Joanna Tierney, M.D.Riverton, UT 840651801996384
- Mairi Leining, MDPark City, UT 840601629066469
- Dominika Janowski, MDLayton, UT 840411922230770
- Kelly Beams, MDSalt Lake City, UT 841021548234750
Common questions
What is Aileen May Arguelles Del Castillo, MD's NPI number?
Aileen May Arguelles Del Castillo, MD's National Provider Identifier (NPI) is 1205068749, issued on Aug 18, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Aileen May Arguelles Del Castillo, MD located?
The NPPES record lists a practice address at 3723 W 12600 S, Riverton, UT, 84065. Phone: (801) 507-4384. Providers update this record themselves, so call before visiting.
How can I verify Aileen May Arguelles Del Castillo, MD's license?
NPPES lists Utah license number 9740415-1205, as entered by the provider. Search the Utah Medical Licensing Board at https://secure.utah.gov/llv/search/index.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Aileen May Arguelles Del Castillo, MD prescribe under Medicare Part D?
In 2024, Aileen May Arguelles Del Castillo, MD had 162 Medicare Part D claims for 96 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.