ROBERTO SANTIAGO MENDEZ, M.D appears in the CMS NPPES registry as a Radiation Oncology Physician provider holding M.D credentials at MARGINAL #2, ESQUINA 3B, SUITE G1, BAYAMON, PR, 00960, with a listed phone of (787) 966-7500. NPI 1710025762 was issued on 02/02/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SANTIAGO MENDEZ 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 245 prescription claims written by this provider, covering 107 Medicare beneficiaries and totaling roughly $6K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 10.6%. 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 80.1576/100 for the 2023 performance year (Quality 60.3152), compared with the national average of 83.1.

Radiation Oncology Physician is a mid-sized specialty nationwide, with 6,018 enrolled providers across 52 states and an average of 186 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.