PT - JOURNAL ARTICLE AU - Rodriguez, Hector P. AU - Berube, Alena D. AU - Hung, Dorothy Y. AU - Shortell, Stephen M. AU - Fisher, Elliott S. TI - Primary Care Practice Characteristics Associated With Medical Assistant Staffing Ratios AID - 10.1370/afm.3100 DP - 2024 May 01 TA - The Annals of Family Medicine PG - 233--236 VI - 22 IP - 3 4099 - http://www.annfammed.org/content/22/3/233.short 4100 - http://www.annfammed.org/content/22/3/233.full SO - Ann Fam Med2024 May 01; 22 AB - This study characterized adult primary care medical assistant (MA) staffing. National Survey of Healthcare Organizations and Systems (n = 1,252) data were analyzed to examine primary care practice characteristics associated with MA per primary care clinician (PCC) staffing ratios. In 2021, few practices (11.4%) had ratios of 2 or more MAs per PCCs. Compared with system-owned practices, independent (odds ratio [OR] = 1.76, P <0.05) and medical group-owned (OR = 2.09, P <0.05) practices were more likely to have ratios of 2 or more MAs per PCCs, as were practices with organizational cultures oriented to innovation (P <0.05). Most primary care practices do not have adequate MA staffing.