KAREN LEWANDOWSKI, NP-C appears in the CMS NPPES registry as a Registered Nurse First Assistant provider holding NP-C credentials at 536 WASHINGTON ST, ABINGTON, MA, 02351, with a listed phone of (781) 871-3773. NPI 1215018924 was issued on 10/18/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LEWANDOWSKI 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 1,562 prescription claims written by this provider, covering 262 Medicare beneficiaries and totaling roughly $126K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 67.0%. 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 89.4311/100 for the 2023 performance year (Quality 75.4159, Cost 72.6876), compared with the national average of 83.1.

Registered Nurse First Assistant is a narrow specialty nationwide, with 2,649 enrolled providers across 50 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.