Quick answers
- Does Gerardo Lopez Mejia accept Medicare assignment?
- Yes. Medicare's clinician data says Gerardo Lopez Mejia accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Gerardo Lopez Mejia see?
- In 2024, CMS data shows 598 Original Medicare patients and 1,319 services for Gerardo Lopez Mejia. This counts Original Medicare only and measures volume, not quality.
- What is Gerardo Lopez Mejia's NPI number?
- 1003956624. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Gerardo Lopez Mejia, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 598 |
|---|---|
| Services billed to Medicare | 1,319 |
| Different services or procedures | 48 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)310 services
- Detection test by immunoassay with direct visual observation for influenza virus (87804)176 services
- Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)174 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)126 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)109 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol74%
- High blood pressure71%
- Arthritis53%
- Ischemic heart disease28%
- Chronic kidney disease24%
- Depression23%
Practice locations
Addresses where Gerardo Lopez Mejia is enrolled with Medicare (CMS data updated October 2, 2026).
- 12220 N Macarthur Blvd D, Mercy Gohealth Urgent Care NW OkcOklahoma City, OK 73162 (405) 437‑1100
- 1380 W Covell Rd, 132 Mercy Gohealth Urgent Care N EdmondEdmond, OK 73003 (405) 279‑9637
Group practices
Medicare enrollment lists Gerardo Lopez Mejia as a member of this group (CMS data updated October 2, 2026).
- Mercy Oklahoma Ambulatory Services LLC48 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Oklahoma City
Clinicians with the same Medicare primary specialty in Oklahoma City, OK — not a recommendation.
Other clinicians in Mercy Oklahoma Ambulatory Services LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Oklahoma College Of Medicine |
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003956624 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians