Marc S. Pieniek, MD
NPI 1295793677ActiveIndividual· Internal Medicine, Cardiovascular Disease· Plano, TX
Internal Medicine, Cardiovascular Disease (MD) in Plano, Texas, trained at Emory University School of Medicine (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $472,760 for 2,964 claims, against $128,762 paid for services in 2024. Pfizer Inc. was the largest of 19 companies reporting payments in 2025, $1,496 in all, mostly food and beverage.
Overview
| NPI | 1295793677 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 3, 2006 |
| Last updated in NPPES | Sep 23, 2022 |
| Certified by provider | Sep 23, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | K1621 | TX |
| Nuclear Medicine, Nuclear Cardiology | 207UN0901X | K1621 | 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 - Cardiovascular Disease (Cardiology) (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 464 |
|---|---|
| Services billed | 2,283 across 51 procedure codes |
| Paid by Medicare | $128,762 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,964 · 7,532 30-day fills |
|---|---|
| Patients | 354 |
| Total drug cost | $472,760 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Emory University School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
Medical group
- Heartplace PLLCPlano, TX · 91 clinicians
Hospital affiliations
- Baylor Scott & White Medical Center PlanoPlano, TX
- Baylor Scott & White the Heart Hospital PlanoPlano, TX
- Medical City PlanoPlano, TX
Industry payments (Open Payments)
- 2025$1,496 · 61 payments from 19 companies
- 2024$2,620 · 66 payments from 25 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $307.38 | 18 |
| Heartflow, Inc. | $229.43 | 4 |
| Novartis Pharmaceuticals Corporation | $199.23 | 7 |
| E.R. Squibb & Sons, L.L.C. | $132.28 | 5 |
| Bayer Healthcare Pharmaceuticals Inc. | $110.63 | 5 |
What the 2025 payments were for
- Food and Beverage$1,456 · 59 payments
- Education$40.44 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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