Omar Diaz, MD
NPI 1548765845ActiveIndividual· Emergency Medicine· Laredo, TX
Emergency Medicine (MD) in Laredo, Texas, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 2018). 228 Medicare patients in 2024, $33,496 paid; nearly all of their 285 Part D prescriptions were generic (94%). Janssen Pharmaceuticals, Inc reported $119.22 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1548765845 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 28, 2018 |
| Last updated in NPPES | Jun 14, 2024 |
| Certified by provider | Jun 14, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | T2591 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Emergency Medicine (IL); Practitioner - Emergency Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 228 |
|---|---|
| Services billed | 374 across 15 procedure codes |
| Paid by Medicare | $33,496 |
Part D prescriptions in 2024
| Prescriptions (claims) | 285 · 288 30-day fills |
|---|---|
| Patients | 175 |
| Total drug cost | $2,501 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Emergency Medicine |
Medical groups
- Emergency Medicine Services of Tx, PLLCSpring Branch, TX · 400 clinicians
- Laredo Emergency Medicine Associates PALaredo, TX · 46 clinicians
- Wellness Whisper PLLCLaredo, TX · 2 clinicians
Hospital affiliations
- Laredo Medical CenterLaredo, TX
- Methodist HospitalSan Antonio, TX
- Methodist Hospital Stone OakSan Antonio, TX
Industry payments (Open Payments)
- 2025$119.22 · 1 payment from 1 company
- 2024$124.99 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Pharmaceuticals, Inc | $119.22 | 1 |
What the 2025 payments were for
- Food and Beverage$119.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 29 emergency medicine physicians in Laredo · All emergency medicine physicians in Texas