JOHN KARL DE DIOS, MD appears in the CMS NPPES registry as a Clinical Biochemical Genetics Physician provider holding MD credentials at 1 CHILDRENS PLZ, DAYTON, OH, 45404, with a listed phone of (937) 641-4000. NPI 1093019291 was issued on 01/03/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DE DIOS 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 14 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $440K 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.

Clinical Biochemical Genetics Physician is a narrow specialty nationwide, with 82 enrolled providers across 28 states and an average of 46 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.