Mark R. Bielefeld, MD
NPI 1538255229ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Corpus Christi, TX
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) in Corpus Christi, Texas, trained at Medical College of Wisconsin (class of 1988). In 2024 Medicare paid $107,525 for 166 patients, and Part D covered 133 of their prescriptions, 88% of them generic. Abiomed was the largest of 4 companies reporting payments in 2025, $1,248 in all, mostly food and beverage.
Overview
| NPI | 1538255229 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 4, 2006 |
| Last updated in NPPES | Oct 21, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | L1528 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Thoracic Surgery (LA); Practitioner - Thoracic Surgery (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 166 |
|---|---|
| Services billed | 457 across 53 procedure codes |
| Paid by Medicare | $107,525 |
Part D prescriptions in 2024
| Prescriptions (claims) | 133 · 177 30-day fills |
|---|---|
| Patients | 59 |
| Total drug cost | $4,072 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Thoracic Surgery |
| Secondary specialties | Cardiac Surgery, Vascular Surgery |
Medical group
- J Mark Morales MD PACorpus Christi, TX · 4 clinicians
Hospital affiliations
- Christus Spohn Hospital Corpus ChristiCorpus Christi, TX
- Corpus Christi Medical Center,theCorpus Christi, TX
- Harlingen Medical CenterHarlingen, TX
- Valley Regional Medical CenterBrownsville, TX
- Vhs Harlingen Hospital Company LLCHarlingen, TX
Industry payments (Open Payments)
- 2025$1,248 · 25 payments from 4 companies
- 2024$955.13 · 15 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abiomed | $654.54 | 13 |
| Atricure, Inc. | $478.21 | 7 |
| Medtronic, Inc. | $86.46 | 4 |
| Getinge USA Sales, LLC | $28.57 | 1 |
What the 2025 payments were for
- Food and Beverage$1,248 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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