SHERI LASK, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 951 ESSINGTON RD, JOLIET, IL, 60435, with a listed phone of (815) 744-4551. NPI 1063467934 was issued on 05/22/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LASK 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 408 prescription claims written by this provider, covering 150 Medicare beneficiaries and totaling roughly $18K in drug spend, split 6% brand-name and 94% generic by claim count, with an opioid prescribing rate of 31.1%. 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 72.6842/100 for the 2023 performance year (Quality 71.8158, Cost 52.965), 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.