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

Dr. Gerardo Lopez Mejia, MD

Individual provider Family Medicine Physician · NPI 1003956624

Dr. Gerardo Lopez Mejia, MD is registered under Family Practice in Choctaw, Oklahoma. Graduated from University of Oklahoma College of Medicine in 2006, 20 years ago. Practices with Mercy Oklahoma Ambulatory Services LLC, a 45-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
20
Trained at
University of Oklahoma College of Medicine
Licensed in
OK
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

14321 NE 23rd St
Choctaw, OK 73020-8624
Phone: (405) 342-0255
Fax: (405) 610-6960
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 25202 (OK)

Record details

NPI number1003956624
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 6, 2007
Last updated in NPPESJanuary 3, 2022
Certification dateJanuary 3, 2022

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice Mercy Oklahoma Ambulatory Services Llc — 45 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients598
Services billed 1,319 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Colleagues at Mercy Oklahoma Ambulatory Services LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 45 clinicians in the practice; 12 are shown here.

Other providers in Choctaw