Isabel Cristina Rojas Santamaria, M.D.
NPI 1548307481ActiveIndividual· Pediatrics, Pediatric Gastroenterology· Dallas, TX
Pediatrics, Pediatric Gastroenterology (M.D.) with University of Texas Southwestern Medical Center at Dallas, practicing in Dallas, Texas. Enrolled in Medicare as practitioner - pediatric medicine. Regeneron Healthcare Solutions, Inc. was the largest of 4 companies reporting payments in 2025, $158.21 in all, mostly food and beverage. Lists Childrens Medical Ctr of Dallas as a hospital affiliation.
Overview
| NPI | 1548307481 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 31, 2007 |
| Last updated in NPPES | Aug 15, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pediatrics, Pediatric Gastroenterology Primary | 2080P0206X | N9945 | TX |
| Pediatrics | 208000000X | 24526 | OK |
| Pediatrics | 208000000X | N9945 | 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 - Pediatric Medicine (TX) |
|---|
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Pediatric Medicine |
| Secondary specialties | Gastroenterology |
Medical group
- University of Texas Southwestern Medical Center at DallasDallas, TX · 3,187 clinicians
Hospital affiliation
- Childrens Medical Ctr of DallasDallas, TX
Industry payments (Open Payments)
- 2025$158.21 · 7 payments from 4 companies
- 2024$364.82 · 13 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $82.30 | 3 |
| Takeda Pharmaceuticals U.S.A., Inc. | $37.40 | 2 |
| Eton Pharmaceuticals, Inc. | $20.04 | 1 |
| Mirum Pharmaceuticals, Inc. | $18.47 | 1 |
What the 2025 payments were for
- Food and Beverage$158.21 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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