Mark A. Stellingworth, MD
NPI 1003000936ActiveIndividual· Internal Medicine, Cardiovascular Disease· Hartsville, SC
Internal Medicine, Cardiovascular Disease (MD) in Hartsville, South Carolina, trained at Louisiana State University School of Medicine in New Orleans (class of 2000). In 2024 Medicare paid $160,404 for 853 patients, and Part D covered 1,370 of their prescriptions, 86% of them generic. Philips North America LLC was the largest of 7 companies reporting payments in 2025, $283.71 in all, mostly food and beverage.
Overview
| NPI | 1003000936 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 4, 2007 |
| Last updated in NPPES | Jun 13, 2022 |
| Certified by provider | Jun 13, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 36377 | SC |
| Internal Medicine, Advanced Heart Failure and Transplant Cardiology | 207RA0001X | 36377 | SC |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 024969 | LA |
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) (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 853 |
|---|---|
| Services billed | 2,920 across 49 procedure codes |
| Paid by Medicare | $160,404 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,370 · 2,339 30-day fills |
|---|---|
| Patients | 269 |
| Total drug cost | $150,258 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Internal Medicine |
Medical groups
- Prisma Health Medical Group-MidlandsColumbia, SC · 1,068 clinicians
- Hartsville Medical Group LLCHartsville, SC · 80 clinicians
Hospital affiliations
- Carolina Pines Regional Medical CenterHartsville, SC
- McLeod Health CherawCheraw, SC
- McLeod Regional Medical Center-Pee DeeFlorence, SC
- Musc Health Florence Medical CenterFlorence, SC
Industry payments (Open Payments)
- 2025$283.71 · 13 payments from 7 companies
- 2024$450.02 · 23 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Philips North America LLC | $79.67 | 3 |
| Novartis Pharmaceuticals Corporation | $72.26 | 3 |
| Esperion Therapeutics, Inc. | $63.33 | 3 |
| Alnylam Pharmaceuticals Inc. | $18.44 | 1 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $16.74 | 1 |
What the 2025 payments were for
- Food and Beverage$283.71 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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