“…A number of studies on overuse of primary care services identify attributes of patients, practitioners, or provider organizations that are correlated with overuse. For example, inordinately high use of some primary care procedures has been associated with patients who are male (Diette et al, 1999) or frequent health care users (Partin et al, 2012; Walter et al, 2009); PCPs who are nonphysicians (Guerry et al, 2005; Roumie et al, 2005), older (Kerfoot, Holmberg, Lawler, Krupat, & Conlin, 2007), or have a greater practice volume (Cadieux, Tamblyn, Dauphinee, & Libman, 2007); and rural and for profit organizations (Mathias, Feinglass, & Baker, 2012). Although these studies can improve the prediction of when overuse is more likely to occur, they do not specify why it occurs.…”