RUBEN ARMENDARIZ, APRN-CNP appears in the CMS NPPES registry as a Pediatrics Physician provider holding APRN-CNP credentials at 5521 N MCCOLL RD, MCALLEN, TX, 78504, with a listed phone of (956) 362-8420. NPI 1003448416 was issued on 02/04/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARMENDARIZ 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 2,773 prescription claims written by this provider, covering 633 Medicare beneficiaries and totaling roughly $326K in drug spend, split 8% brand-name and 92% 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 87.6844/100 for the 2023 performance year (Quality 73.7464), compared with the national average of 83.1.

Pediatrics Physician is a high-volume specialty nationwide, with 80,574 enrolled providers across 56 states and an average of 762 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.