Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Isai Lorenzo Lopez, MD

Individual provider Emergency Medicine Physician · NPI 1902486673

Isai Lorenzo Lopez, MD practises Emergency Medicine in Anaheim, California. Graduated from Irvine California College of Medicine in 2021, 5 years ago. Practices with Regents of the University Of, a 125-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
5
Trained at
Irvine California College of Medicine
Licensed in
CA
In the registry since
2021
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1111 W La Palma Ave
Anaheim, CA 92801-2804
Phone: (714) 774-1450
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 101 The City Dr S, Orange, CA 92868-3201 — (714) 456-8888

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence A195042 (CA)

Record details

NPI number1902486673
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 8, 2021
Last updated in NPPESJune 9, 2026
Certification dateJune 9, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolIRVINE CALIFORNIA COLLEGE OF MEDICINE
Graduated 2021 (5 years in practice)
Group practice Regents Of The University Of — 125 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients177
Services billed 318 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Uci Health-Lakewood Hospital · Lakewood, CA
  • Uci Health-Orange Hospital · Orange, CA

Colleagues at Regents of the University Of

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 125 clinicians in the practice; 12 are shown here.

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