Doctor profile · Federal record

Dr. Irma Lopez, M.D.

General Practice Physician · Ontario, CA

  • NPI 1538240908
  • 20 yrs on file
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
602 N Euclid Ave, Ste: A
Ontario, CA 917623224
(909) 391-3423
fax (909) 391-3424

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
January 7, 2008
Specialty taxonomy
208D00000X — NUCC code
State license (1)
California #G57022
Medicaid
CA #00G57022

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1538240908. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$113
Transactions
5
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Dexcom, INC. 2 $64.83
Novo Nordisk INC 2 $28.92
GlaxoSmithKline, LLC. 1 $19.49

By nature of payment

Food and Beverage
$113

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
348
Patients
102
Total drug cost
$25,764
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 53 29 $1,010
Metformin Hcl Generic 50 21 $613
Omeprazole Generic 31 13 $521
Lisinopril Generic 30 13 $416
Amlodipine Besylate Generic 26 15 $330
Levothyroxine Sodium Generic 23 11 $589
Januvia (Sitagliptin Phosphate) Brand 21 0 $20,813
Gabapentin Generic 20 0 $153
Glipizide Generic 20 0 $276
Hydrochlorothiazide Generic 19 0 $113

Frequently asked questions

Auto-generated from federal data
What is Dr. Irma Lopez's medical specialty?
Dr. Irma Lopez practices General Practice Physician in Ontario, CA.
Where does Dr. Irma Lopez practice?
Dr. Irma Lopez practices at 602 N Euclid Ave, Ontario, CA 917623224. Office phone: 9093913423.
What is Dr. Irma Lopez's NPI?
Dr. Irma Lopez's National Provider Identifier (NPI) is 1538240908, issued by NPPES.