Doctor profile · Federal record

Dr. Michael Messina, DO

Emergency Medicine Physician · Los Angeles, CA

  • NPI 1225591936
  • MIPS 93.2 / 100 · 2023
  • 7 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
757 Westwood Plz Ste 1517
Los Angeles, CA 900951352
(310) 825-9111
Additional location
1250 16Th St
Santa Monica, CA 904041249
(310) 794-7700
Additional location
2051 Marengo St
Los Angeles, CA 900331352
(323) 409-1945
Mailing address
5767 W Century Blvd Ste 400
Los Angeles, CA 900455631

Credentials & registration

NPPES · NUCC
NPI registered
April 2019 — 7 yrs on file
Profile last updated
July 7, 2023
Specialty taxonomy
207P00000X — NUCC code
State license (1)
California #20258

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1225591936. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
117
Distinct HCPCS
2
Medicare allowed
$18,733
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 74 74 $181
99284 Emergency department visit with moderate level of medical decision making 43 43 $125

In context: peer comparison

Among 185 peers in Los Angeles Emergency Medicine Physician, average services per provider: 87. This provider delivers 1.3× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Messina's medical specialty?
Dr. Michael Messina practices Emergency Medicine Physician in Los Angeles, CA.
Where does Dr. Michael Messina practice?
Dr. Michael Messina practices at 757 Westwood Plz Ste 1517, Los Angeles, CA 900951352. Office phone: 3108259111.
What is Dr. Michael Messina's NPI?
Dr. Michael Messina's National Provider Identifier (NPI) is 1225591936, issued by NPPES.
What procedures does Dr. Michael Messina commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.