MARILYN WARREN, RN, CNS, RXS appears in the CMS NPPES registry as a Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist provider holding RN, CNS, RXS credentials at 28374 COUNTY ROAD 317, BUENA VISTA, CO, 81211, with a listed phone of (719) 538-6502. NPI 1477569473 was issued on 07/31/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WARREN 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 1,581 prescription claims written by this provider, covering 131 Medicare beneficiaries and totaling roughly $254K in drug spend, split 7% brand-name and 93% 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.

Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist is a narrow specialty nationwide, with 232 enrolled providers across 44 states and an average of 722 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.