JOHN YINGLING, P.A.C. appears in the CMS NPPES registry as a Physician Assistant provider holding P.A.C. credentials at 550 RITCHIE HWY, SEVERNA PARK, MD, 21146, with a listed phone of (703) 522-2727. NPI 1689749137 was issued on 11/21/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what YINGLING 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 2,265 prescription claims written by this provider, covering 280 Medicare beneficiaries and totaling roughly $106K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 55.5%. 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 79.0621/100 for the 2023 performance year (Quality 35.2607, Cost 74.351), compared with the national average of 83.1.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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.