SARAH THORNTON, M.D. appears in the CMS NPPES registry as a Neuro-ophthalmology Physician provider holding M.D. credentials at 840 WALNUT ST STE 930, PHILADELPHIA, PA, 19107, with a listed phone of (215) 928-3130. NPI 1316393994 was issued on 05/12/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what THORNTON 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 272 prescription claims written by this provider, covering 89 Medicare beneficiaries and totaling roughly $14K in drug spend, split 6% brand-name and 94% generic by claim count. 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 88.3352/100 for the 2023 performance year (Quality 91.6742, Cost 69.443), compared with the national average of 83.1.

Neuro-ophthalmology Physician is a narrow specialty nationwide, with 128 enrolled providers across 34 states and an average of 419 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.