KAREN KOST-RIOS, DPM appears in the CMS NPPES registry as a Foot Surgery Podiatrist provider holding DPM credentials at 100 HITCHCOCK WAY, MANCHESTER, NH, 03104, with a listed phone of (603) 695-2500. NPI 1851304828 was issued on 08/14/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KOST-RIOS 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 62 prescription claims written by this provider, covering 54 Medicare beneficiaries and totaling roughly $5K in drug spend. 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 69.4014/100 for the 2023 performance year (Quality 55.6429, Cost 42.3618), compared with the national average of 83.1.

Foot Surgery Podiatrist is a narrow specialty nationwide, with 1,519 enrolled providers across 53 states and an average of 342 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.