Gerardo Lopez Mejia, M.D.
NPI 1003956624 · Family Medicine Physician · Choctaw, OK
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerardo Lopez Mejia, M.D. is a Family Medicine Physician provider in Choctaw, OK (NPI 1003956624).
Provider details
- NPI number
- 1003956624
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25202 (OK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,198 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 310 | $84 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 176 | $16 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19)87811 | 174 | $41 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 126 | $103 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 109 | $119 |
| Automated Urinalysis Test81003 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ipratropium Bromide | 104 | 104 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 79 | 75 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 54 | 51 |
| Cephalexin | 53 | 50 |
| Doxycycline Hyclate | 51 | 51 |
| Prednisone | 38 | 36 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-06
- Last updated
- 2022-01-03
- Certified
- 2022-01-03
Frequently asked questions
- What is Gerardo Lopez Mejia's NPI number?
- Gerardo Lopez Mejia's National Provider Identifier (NPI) is 1003956624, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerardo Lopez Mejia's specialty?
- Gerardo Lopez Mejia is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gerardo Lopez Mejia located?
- Gerardo Lopez Mejia's practice location on file with NPPES is 14321 Ne 23rd St, Choctaw, OK 73020-8624.
- What is Gerardo Lopez Mejia's phone number?
- The practice phone number listed in the NPPES registry for Gerardo Lopez Mejia is (405) 342-0255.
- Does Gerardo Lopez Mejia accept Medicare?
- Gerardo Lopez Mejia is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerardo Lopez Mejia's NPI active?
- Yes — Gerardo Lopez Mejia's NPI (1003956624) is active in the NPPES registry as of the last update on 2022-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.