Trends in Psychiatrist-Led Care for Medicare Part B Enrollees.

Havlik JL, Wahid S, Priest KC, Ososanya L, Igunbor M, Humphreys K. Trends in Psychiatrist-Led Care for Medicare Part B Enrollees. JAMA Network Open. 2025 Feb 3; 8(2):e2458160, DOI: 10.1001/jamanetworkopen.2024.58160.

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Abstract:

IMPORTANCE: The rising incidence of mental illness in the US underscores the need for timely access to psychiatric care, especially for vulnerable populations such as older adults and individuals with mental and physical disabilities who receive Medicare. OBJECTIVE: To assess changes in the number and proportion of active psychiatrists providing professional services to traditional Medicare Part B enrollees from 2014 to 2022. DESIGN, SETTING, AND PARTICIPANTS: This repeated cross-sectional study of Medicare Part B enrollees used publicly available data (for January 1, 2014, through December 31, 2022) from the Centers for Medicare and Medicaid Services and the Kaiser Family Foundation. Data from all traditional Medicare Part B enrollees in all 50 states and the District of Columbia were analyzed. MAIN OUTCOMES AND MEASURES: Primary outcomes included changes in (1) the proportion of active psychiatrists billing traditional Medicare and (2) the number of psychiatrists providing care relative to the number of Medicare Part B enrollees nationally, regionally, and by state. RESULTS: The study population comprised 291 748 472 Medicare Part B enrollee-years (33 042 936 in 2014: 5 800 903 [17.6%] eligible due to disability alone and 27 242 030 [82.4%] eligible due to age). From 2014 to 2022, the number of Medicare Part B enrollees decreased by 3 497 942 enrollee-years (10.6%), while the number of psychiatrists submitting more than 10 claims to Medicare Part B decreased by 3772 (16.8%). The nationwide proportion of professionally active psychiatrists submitting claims to Medicare Part B for professional services during this period declined from 22 409 of 50 416 (44.4%) in 2014 to 18 637 of 56 492 (33.0%) in 2022 (P  <  .001 on univariable regression). From 2014 to 2022, state-level changes in Medicare Part B-serving psychiatrists per enrollee ranged from a 31.7% increase in Alabama (from 36.5 to 48.1 psychiatrists per 100 000 enrollees) to a 67.8% decrease in Wyoming (from 42.9 to 13.8 psychiatrists per 100 000 enrollees). Every state and district assessed saw a decrease in the percentage of active psychiatrists who billed Medicare Part B for professional services over the study period. CONCLUSIONS AND RELEVANCE: In this study of Medicare Part B acceptance among active US psychiatrists, declining acceptance of Medicare Part B for professional services among psychiatrists was observed nationally and across all states. During a time of psychiatrist workforce growth, the number of psychiatrists accepting traditional Medicare decreased, indicating potential challenges in providing equitable access to psychiatric care.