Mark Allen Grabarczyk, M.D.
NPI 1134168941ActiveIndividual· Internal Medicine, Cardiovascular Disease· Greenville, SC
Internal Medicine, Cardiovascular Disease (M.D.) in Greenville, South Carolina, trained at University of South Carolina School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $802,136 for 5,424 claims, against $321,715 paid for services in 2024. Edwards Lifesciences Corporation was the largest of 15 companies reporting payments in 2025, $1,121 in all, mostly food and beverage.
Overview
| NPI | 1134168941 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 6, 2006 |
| Last updated in NPPES | May 8, 2025 |
| Certified by provider | May 8, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 28576 | SC |
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 - Cardiovascular Disease (Cardiology) (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,531 |
|---|---|
| Services billed | 5,295 across 91 procedure codes |
| Paid by Medicare | $321,715 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,424 · 13,998 30-day fills |
|---|---|
| Patients | 735 |
| Total drug cost | $802,136 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of South Carolina School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Internal Medicine |
Medical group
- Bon Secours Medical Group Greenville Specialty Care LLCGreenville, SC · 292 clinicians
Hospital affiliations
- Prisma Health Greenville Memorial HospitalGreenville, SC
- St Francis-DowntownGreenville, SC
Industry payments (Open Payments)
- 2025$1,121 · 32 payments from 15 companies
- 2024$977.73 · 38 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Edwards Lifesciences Corporation | $418.60 | 7 |
| Teleflex LLC | $120.71 | 1 |
| Abiomed | $90.70 | 3 |
| Medtronic, Inc. | $89.77 | 3 |
| Cvrx, Inc. | $78.19 | 3 |
What the 2025 payments were for
- Food and Beverage$1,121 · 32 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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