Context: Prior authorization is the process by which physicians must obtain advance approval from a health plan before delivery of a procedure, device, supply, or medication for insurance to cover the cost for that service. Health plans use prior authorization as a cost-containment strategy by limiting and restricting access to expensive services. Administrative tasks related to obtaining prior authorization for clinical services have been documented to interfere with clinical workflows, increase burnout among physicians and clinical team members, and disrupt quality of care. Additionally, patients are often subject to treatment delays and may abandon critical aspects of their treatment due to these delays. Objective: Describe results from an in-practice study designed to track and quantify activities and tasks undertaken by practice staff to obtain prior authorizations over a 1-month period. Study Design: Mixed-methods, in-practice study collecting data about prior authorization processes and workflows from clinical staff. Setting: Five primary care practices recruited by the American Academy of Family Physicians National Research Network. Dataset: Data collected about prior authorizations submitted at participating practices throughout 1-month observation period. Participating staff also complete baseline and post-observation surveys. Outcome Measures: Summary and descriptive statistics regarding tasks, roles, and activities undertaken by practice staff when submitting prior authorizations and following through to decision. Results: Data collected on prior authorizations submitted will include: types and numbers of prior authorizations submitted, methods of submission, titles and roles of individual completing prior authorization tasks, approval rates, outcomes, total staff time spent on tasks, total practice wait time, and cumulative time spent on each prior authorization.