Fernando E. Membreno, M.D.
NPI 1942233929ActiveIndividual· Internal Medicine, Transplant Hepatology· McAllen, TX
Internal Medicine, Transplant Hepatology (M.D.) with Renaissance Medical Foundation and 1 other group, practicing in McAllen, Texas. Their prescriptions cost Medicare Part D more than their services did: $258,644 for 156 claims, against $8,972 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 10 companies reporting payments in 2025, $115,709 in all, mostly speaking and faculty fees. Lists Doctors Hosptal at Renaissance and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1942233929 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 10, 2006 |
| Last updated in NPPES | Aug 3, 2020 |
| Certified by provider | Aug 3, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Transplant Hepatology Primary | 207RT0003X | M4350 | TX |
| Internal Medicine, Hepatology | 207RI0008X | M4350 | TX |
| Internal Medicine, Gastroenterology | 207RG0100X | M4350 | 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 - Gastroenterology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 82 |
|---|---|
| Services billed | 95 across 14 procedure codes |
| Paid by Medicare | $8,972 |
Part D prescriptions in 2024
| Prescriptions (claims) | 156 · 203 30-day fills |
|---|---|
| Patients | 59 |
| Total drug cost | $258,644 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical groups
- Renaissance Medical FoundationEdinburg, TX · 181 clinicians
- Methodist Physician Practices PLLCLive Oak, TX · 175 clinicians
Hospital affiliations
- Doctors Hosptal at RenaissanceEdinburg, TX
- Methodist HospitalSan Antonio, TX
- South Texas Health SystemEdinburg, TX
Industry payments (Open Payments)
- 2025$115,709 · 125 payments from 10 companies
- 2024$48,244 · 65 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $50,713 | 47 |
| Ipsen Biopharmaceuticals, Inc | $36,568 | 35 |
| Gilead Sciences, Inc. | $27,877 | 30 |
| Mallinckrodt Hospital Products Inc. | $171.48 | 4 |
| Boston Scientific Corporation | $152.69 | 2 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$96,155 · 22 payments
- Travel and Lodging$12,602 · 29 payments
- Food and Beverage$4,133 · 73 payments
- Consulting Fee$2,820 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records