Doctor profile · Federal record

Dr. Christopher Tomongin, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Los Alamitos, CA

  • NPI 1841211968
  • Accepts Medicare
  • MIPS 86.3 / 100 · 2023
  • 24 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3751 Katella Ave
Los Alamitos, CA 907203113
(714) 456-8888
Additional location
15107 Vanowen St
Van Nuys, CA 914054542
(818) 902-2990
fax (818) 904-3793
Mailing address
Po Box 662154
Arcadia, CA 910662154

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
April 1, 2025
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
California #A87100
Medicaid
CA #00A871000

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841211968. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
409
Distinct HCPCS
4
Medicare allowed
$50,831
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 200 194 $184
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 131 126 $9
99284 Emergency department visit with moderate level of medical decision making 48 48 $127
99291 Critical care, first 30-74 minutes 30 30 $226

In context: peer comparison

Among 10 peers in Los Alamitos Emergency Medicine Physician, average services per provider: 84. This provider delivers 4.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
165
Patients
162
Total drug cost
$911
Drug Type Claims Patients Total cost
Ibuprofen Generic 56 56 $127
Cefdinir Generic 27 27 $440
Famotidine Generic 15 14 $145
Metoclopramide Hcl Generic 15 14 $34
Ondansetron Hcl Generic 15 15 $63
Meclizine Hcl Generic 14 13 $72
Tramadol Hcl Generic 12 12 $14
Prednisone Generic 11 11 $17

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Christopher Tomongin's medical specialty?
Dr. Christopher Tomongin practices Emergency Medicine Physician in Los Alamitos, CA.
Where does Dr. Christopher Tomongin practice?
Dr. Christopher Tomongin practices at 3751 Katella Ave, Los Alamitos, CA 907203113. Office phone: 7144568888.
What is Dr. Christopher Tomongin's NPI?
Dr. Christopher Tomongin's National Provider Identifier (NPI) is 1841211968, issued by NPPES.
Does Dr. Christopher Tomongin accept Medicare assignment?
Yes. Dr. Christopher Tomongin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Christopher Tomongin commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.