MARK STELLINGWORTH, MD appears in the CMS NPPES registry as a Advanced Heart Failure and Transplant Cardiology Physician provider holding MD credentials at 701 MEDICAL PARK DR STE 301, HARTSVILLE, SC, 29550, with a listed phone of (843) 383-5978. NPI 1003000936 was issued on 09/04/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what STELLINGWORTH most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,459 prescription claims written by this provider, covering 306 Medicare beneficiaries and totaling roughly $161K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 1.0%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 99.3294/100 for the 2023 performance year (Quality 90.5979), compared with the national average of 83.1.

Advanced Heart Failure and Transplant Cardiology Physician is a narrow specialty nationwide, with 510 enrolled providers across 48 states and an average of 1,762 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.