Fernando Cristobal Diaz, MD
NPI 1902333545ActiveIndividual· Internal Medicine, Hematology & Oncology· McAllen, TX
Internal Medicine, Hematology & Oncology (MD) with Texas Oncology PA, practicing in McAllen, Texas. In 2024 Medicare paid $129,475 for 94 patients, and Part D covered 438 of their prescriptions, 88% of them generic. Boston Scientific Corporation was the largest of 38 companies reporting payments in 2025, $5,678 in all, mostly food and beverage. Lists Doctors Hosptal at Renaissance and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1902333545 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 14, 2017 |
| Last updated in NPPES | Aug 21, 2026 |
| Certified by provider | Aug 21, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | V2724 | 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 - Hematology/Oncology (NC); Practitioner - Hematology/Oncology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 94 |
|---|---|
| Services billed | 10,815 across 84 procedure codes |
| Paid by Medicare | $129,475 |
Part D prescriptions in 2024
| Prescriptions (claims) | 438 · 874 30-day fills |
|---|---|
| Patients | 96 |
| Total drug cost | $30,332 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
Medical group
- Texas Oncology PAPlano, TX · 1,014 clinicians
Hospital affiliations
- Doctors Hosptal at RenaissanceEdinburg, TX
- Rio Grande Regional HospitalMcAllen, TX
- South Texas Health SystemEdinburg, TX
- Watauga Medical CenterBoone, NC
Industry payments (Open Payments)
- 2025$5,678 · 114 payments from 38 companies
- 2024$61.41 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $2,488 | 8 |
| Daiichi Sankyo Inc. | $302.01 | 13 |
| Gilead Sciences, Inc. | $248.21 | 9 |
| Karyopharm Therapeutics Inc. | $224.04 | 7 |
| Abbvie Inc. | $198.20 | 4 |
What the 2025 payments were for
- Food and Beverage$4,210 · 105 payments
- Travel and Lodging$907.89 · 2 payments
- Education$560.05 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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