PENNY WARRINGTON, FNP appears in the CMS NPPES registry as a Pediatric Nurse Practitioner provider holding FNP credentials at 665 SARATOGA RD STE 400, WILTON, NY, 12831, with a listed phone of (518) 580-2185. NPI 1649562828 was issued on 05/06/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WARRINGTON 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 3,632 prescription claims written by this provider, covering 454 Medicare beneficiaries and totaling roughly $2.8 million in drug spend, split 58% brand-name and 42% 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 65.4458/100 for the 2023 performance year (Quality 56.3706, Cost 64.8067), compared with the national average of 83.1.

Pediatric Nurse Practitioner is a mid-sized specialty nationwide, with 21,082 enrolled providers across 52 states and an average of 312 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.