Doctor profile · Federal record

Dr. Mark del Castillo, MD

Hospitalist Physician (CMS: Internal Medicine) · Family Medicine Physician · Lakeview, MI

  • NPI 1215169511
  • Accepts Medicare
  • 20 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
418 Washington St
Lakeview, MI 488509806
(989) 352-6474
Additional location
5505 S 900 E Ste 240
Murray, UT 841177210
(775) 222-0044
Mailing address
144 S 500 E
Salt Lake City, UT 841021907

Credentials & registration

NPPES · NUCC
NPI registered
August 2009 — 17 yrs on file
Profile last updated
September 28, 2018
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
208M00000X — NUCC code
State licenses (2)
Utah #9740416-1205 · Michigan #4301101217

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1215169511. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
392
Distinct HCPCS
4
Medicare allowed
$43,759
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 124 68 $77
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 91 42 $111
99239 Hospital discharge day management, more than 30 minutes 91 89 $108
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 86 84 $166

In context: peer comparison

Among 1 peers in Lakeview Hospitalist Physician, average services per provider: 98. This provider delivers 4.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
79
Patients
52
Total drug cost
$7,544
Drug Type Claims Patients Total cost
Meropenem-0.9% Nacl (Meropenem-0.9% Sodium Chloride) Brand 21 0 $7,139
Oxycodone Hcl Generic 17 15 $56
Pantoprazole Sodium Generic 17 15 $235
Prednisone Generic 13 11 $49
Azithromycin Generic 11 11 $65

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark del Castillo's medical specialty?
Dr. Mark del Castillo practices Hospitalist Physician in Lakeview, MI.
Where does Dr. Mark del Castillo practice?
Dr. Mark del Castillo practices at 418 Washington St, Lakeview, MI 488509806. Office phone: 9893526474.
What is Dr. Mark del Castillo's NPI?
Dr. Mark del Castillo's National Provider Identifier (NPI) is 1215169511, issued by NPPES.
Does Dr. Mark del Castillo accept Medicare assignment?
Yes. Dr. Mark del Castillo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark del Castillo commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.