Edward D. Contreras, MD
NPI 1609826445ActiveIndividual· Internal Medicine, Gastroenterology· Waco, TX
Internal Medicine, Gastroenterology (MD) in Waco, Texas, trained at University of Texas Medical School at San Antonio (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $153,975 for 800 claims, against $88,321 paid for services in 2024. Phathom Pharmaceuticals, Inc. was the largest of 7 companies reporting payments in 2025, $394.88 in all, mostly food and beverage.
Overview
| NPI | 1609826445 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 11, 2006 |
| Last updated in NPPES | Feb 24, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | H6128 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 461 |
|---|---|
| Services billed | 854 across 45 procedure codes |
| Paid by Medicare | $88,321 |
Part D prescriptions in 2024
| Prescriptions (claims) | 800 · 1,319 30-day fills |
|---|---|
| Patients | 441 |
| Total drug cost | $153,975 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at San Antonio |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Gastroenterology |
Medical group
- Waco Gastroenterology AssociatesWaco, TX · 15 clinicians
Hospital affiliations
Industry payments (Open Payments)
- 2025$394.88 · 26 payments from 7 companies
- 2024$730.18 · 27 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $143.15 | 19 |
| Abiomed | $125.90 | 1 |
| Abbvie Inc. | $45.65 | 2 |
| Janssen Biotech, Inc. | $22.96 | 1 |
| Genzyme Corporation | $20.41 | 1 |
What the 2025 payments were for
- Food and Beverage$394.88 · 26 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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