Doctor profile · Federal record

Dr. Aileen Arguelles del Castillo, MD

Hospitalist Physician (CMS: Hospitalist) · Internal Medicine Physician · Internal Medicine Physician · Riverton, UT

  • NPI 1205068749
  • Accepts Medicare
  • 20 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
3723 W 12600 S
Riverton, UT 840657295
(801) 507-4384
Additional location
5505 S 900 E Ste 240
Murray, UT 841177210
(801) 783-5011
Additional location
615 S Bower St
Greenville, MI 488382614
(616) 754-4691
fax (616) 754-3828
Mailing address
Po Box 27128, Mc845
Salt Lake City, UT 841270128

Credentials & registration

NPPES · NUCC
NPI registered
August 2009 — 17 yrs on file
Profile last updated
April 8, 2026
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
208M00000X — NUCC code
State licenses (2)
Utah #9740415-1205 · Michigan #4301094111
Medicaid
MI #1205068749

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1205068749. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
311
Distinct HCPCS
5
Medicare allowed
$32,171
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 138 74 $77
99239 Hospital discharge day management, more than 30 minutes 94 94 $112
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 32 24 $116
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 31 31 $170
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 16 16 $127

In context: peer comparison

Among 2 peers in this city , average services per provider: 48. This provider delivers 6.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
29
Patients
15
Total drug cost
$8,139
Drug Type Claims Patients Total cost
Cefdinir Generic 15 15 $153
Eliquis (Apixaban) Brand 14 0 $7,986

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Aileen Arguelles del Castillo's medical specialty?
Dr. Aileen Arguelles del Castillo practices Hospitalist Physician in Riverton, UT.
Where does Dr. Aileen Arguelles del Castillo practice?
Dr. Aileen Arguelles del Castillo practices at 3723 W 12600 S, Riverton, UT 840657295. Office phone: 8015074384.
What is Dr. Aileen Arguelles del Castillo's NPI?
Dr. Aileen Arguelles del Castillo's National Provider Identifier (NPI) is 1205068749, issued by NPPES.
Does Dr. Aileen Arguelles del Castillo accept Medicare assignment?
Yes. Dr. Aileen Arguelles del Castillo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Aileen Arguelles del Castillo commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.