Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Aileen May Arguelles del Castillo, MD

Individual provider Internal Medicine Physician · NPI 1205068749

Aileen May Arguelles del Castillo, MD is a Hospitalist in Riverton, Utah. Qualified in 2006, 20 years ago. Practices with Ihc Health Services Inc, a 3,947-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Michigan and Utah.

Years since qualifying
20
Licensed in
MI, UT
In the registry since
2009
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3723 W 12600 S
Riverton, UT 84065-7295
Phone: (801) 507-4384
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 615 S Bower St, Greenville, MI 48838-2614 — (616) 754-4691
  • 5505 S 900 E Ste 240, Murray, UT 84117-7210 — (801) 783-5011

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 9740415-1205 (UT)
Internal Medicine Physician Taxonomy 207R00000X · Licence 9740415-1205 (UT)
Internal Medicine Physician Taxonomy 207R00000X · Licence 4301094111 (MI)

Record details

NPI number1205068749
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 18, 2009
Last updated in NPPESApril 8, 2026
Certification dateApril 8, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice Ihc Health Services Inc — 3947 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients111
Services billed 250 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Ihc Health Services Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3947 clinicians in the practice; 12 are shown here.

Other providers in Riverton