Doctor profile · Federal record

Dr. Mark McDowell, MD

Hospitalist Physician (CMS: Family Practice) · Family Medicine Physician · Los Angeles, CA

  • NPI 1912165788
  • Accepts Medicare
  • 19 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2512 Alta St Fl 2
Los Angeles, CA 90031
(323) 441-2139
fax (323) 441-9216
Mailing address
Po Box 3299
Carson City, NV 897023299

Credentials & registration

NPPES · NUCC
NPI registered
May 2008 — 18 yrs on file
Profile last updated
August 16, 2021
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
208M00000X — NUCC code
State licenses (2)
Utah #11917018-1205 · California #A113810

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1912165788. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
300
Distinct HCPCS
6
Medicare allowed
$30,466
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 142 76 $77
99239 Hospital discharge day management, more than 30 minutes 52 52 $109
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 39 39 $170
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 29 17 $112
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 21 21 $127
99238 Hospital discharge day management, 30 minutes or less 17 17 $79

In context: peer comparison

Among 62 peers in Los Angeles Hospitalist Physician, average services per provider: 112. This provider delivers 2.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
102
Patients
38
Total drug cost
$14,375
Drug Type Claims Patients Total cost
Divalproex Sodium Generic 23 0 $412
Daptomycin Generic 20 0 $4,372
Meropenem Generic 20 0 $2,271
Prednisone Generic 14 14 $19
Azithromycin Generic 13 13 $46
Eliquis (Apixaban) Brand 12 11 $7,254

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark McDowell's medical specialty?
Dr. Mark McDowell practices Hospitalist Physician in Los Angeles, CA.
Where does Dr. Mark McDowell practice?
Dr. Mark McDowell practices at 2512 Alta St Fl 2, Los Angeles, CA 90031. Office phone: 3234412139.
What is Dr. Mark McDowell's NPI?
Dr. Mark McDowell's National Provider Identifier (NPI) is 1912165788, issued by NPPES.
Does Dr. Mark McDowell accept Medicare assignment?
Yes. Dr. Mark McDowell accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark McDowell 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); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.