Oliver Ezekiel Aregullin, MD
NPI 1275882599ActiveIndividual· Internal Medicine, Interventional Cardiology· Austin, TX
Internal Medicine, Interventional Cardiology (MD) with Texas Childrens Physician Group, practicing in Austin, Texas. Part D covered 19 prescriptions written in 2024, 63% of them generic. B. Braun Interventional Systems Inc. was the largest of 2 companies reporting payments in 2025, $63.28 in all, mostly food and beverage.
Overview
| NPI | 1275882599 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 31, 2012 |
| Last updated in NPPES | Dec 29, 2025 |
| Certified by provider | Dec 29, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | U8939 | TX |
| Pediatrics | 208000000X | 110254 | FL |
| Internal Medicine, Adult Congenital Heart Disease | 207RA0002X | 4301112330 | MI |
| Pediatrics, Pediatric Cardiology | 2080P0202X | U8939 | TX |
| Pediatrics, Pediatric Cardiology | 2080P0202X | 4301112330 | MI |
| Internal Medicine, Interventional Cardiology | 207RI0011X | 4301112330 | MI |
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) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 19 · 28 30-day fills |
|---|---|
| Total drug cost | $6,075 |
| Generic share | 63% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Pediatric Medicine |
| Secondary specialties | Cardiovascular Disease (Cardiology), Internal Medicine, Interventional Cardiology |
Medical group
- Texas Childrens Physician GroupHouston, TX · 671 clinicians
Industry payments (Open Payments)
- 2025$63.28 · 2 payments from 2 companies
- 2024$2,026 · 22 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| B. Braun Interventional Systems Inc. | $36.23 | 1 |
| Abbott Laboratories | $27.05 | 1 |
What the 2025 payments were for
- Food and Beverage$63.28 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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