Brian Bui, D.O. appears in the CMS NPPES registry as a Child & Adolescent Psychiatry Physician provider holding D.O. credentials at 4444 FOREST PARK AVE STE 2600, Saint Louis, MO, 63108, with a listed phone of (314) 286-1700. NPI 1699152249 was issued on 05/04/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Bui 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 364 prescription claims written by this provider, covering 30 Medicare beneficiaries and totaling roughly $64K in drug spend, split 4% brand-name and 96% 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 Psychiatry Physician is a mid-sized specialty nationwide, with 6,160 enrolled providers across 54 states and an average of 600 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.