Fernando Magana Herrera, DO
NPI 1215564372ActiveIndividual· Internal Medicine, Gastroenterology· Mansfield, TX
Internal Medicine, Gastroenterology (DO) with Usacs Observation Medicine Services of Oklahoma, LLC, practicing in Mansfield, Texas. Mostly services rather than prescriptions: Medicare paid $2,773 for 22 patients in 2024, with only 11 Part D claims. Abbvie Inc. was the largest of 9 companies reporting payments in 2025, $1,255 in all, mostly food and beverage. Lists Ascension St John Broken Arrow and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1215564372 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Mar 26, 2020 |
| Last updated in NPPES | Jul 1, 2026 |
| Certified by provider | Jul 1, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | W6299 | 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 - Internal Medicine (OK); Practitioner - Gastroenterology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 22 |
|---|---|
| Services billed | 22 across 2 procedure codes |
| Paid by Medicare | $2,773 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11 · 18 30-day fills |
|---|---|
| Total drug cost | $569.86 |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Usacs Observation Medicine Services of Oklahoma, LLCTulsa, OK · 210 clinicians
Hospital affiliations
- Ascension St John Broken ArrowBroken Arrow, OK
- Ascension St John Jane PhillipsBartlesville, OK
- Ascension St John Medical CenterTulsa, OK
- Methodist Mansfield Medical CenterMansfield, TX
- Saint Francis Hospital, IncTulsa, OK
Industry payments (Open Payments)
- 2025$1,255 · 32 payments from 9 companies
- 2024$938.39 · 19 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $359.65 | 11 |
| Janssen Biotech, Inc. | $219.44 | 7 |
| Gilead Sciences, Inc. | $215.67 | 2 |
| Boston Scientific Corporation | $176.94 | 2 |
| Janssen Scientific Affairs, LLC | $107.88 | 1 |
What the 2025 payments were for
- Food and Beverage$1,255 · 32 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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