RICHARD ZAVALLA, AGNP-C appears in the CMS NPPES registry as a Critical Care Medicine Registered Nurse provider holding AGNP-C credentials at 11221 KATY FWY STE 115, HOUSTON, TX, 77079, with a listed phone of (800) 991-6117. NPI 1477933893 was issued on 06/01/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ZAVALLA 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 110 prescription claims written by this provider, covering 61 Medicare beneficiaries and totaling roughly $7K 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 93.0993/100 for the 2023 performance year (Quality 100, Cost 43.6642), compared with the national average of 83.1.

Critical Care Medicine Registered Nurse is a mid-sized specialty nationwide, with 6,529 enrolled providers across 53 states and an average of 752 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.