Carol S. Cairns, CPMSM, CPCS, has more than 40 years of experience in the medical staff services profession. She is the president of PRO-CON, and an advisory consultant and frequent presenter with The Greeley Company. A recognized expert in the field, Cairns has been a faculty member with the National Association Medical Staff Services (NAMSS) since 1990. She presents frequently at state and national seminars on subjects such as basic and advanced credentialing and privileging, core privileging, AHP credentialing, CMS’ Conditions of Participation, and the standards of-and survey preparation for-The Joint Commission, NCQA, HFAP, and DNV GL. For the past 18 years, Cairns has been an advisor to healthcare attorneys, including providing expert witness testimony regarding credentialing and privileging issues. She conceptualized and wrote six versions of Verify and Comply, an industry textbook and favorite since 1999.