Background: Pharmacists are increasingly fulfilling roles on primary care teams, yet business models for pharmacist services in these settings have not been optimized. This study describes how an ambulatory care pharmacy department implemented various billing methods to generate revenue for pharmacist services.

Objectives: (1) Describe pharmacist-delivered billable and non-billable services; and (2) Assess the impact of various billing methods on the return-on-investment (ROI) for billable services.

Methods: This study was conducted from September 2016 to August 2017 in Virginia. Pharmacist time spent performing billable encounters using current procedural technology (CPT) codes (e.g., incident-to a physician, annual wellness visits) was calculated. Encounters eligible for the hospital-based facility (G0463) and chronic care management (CCM) codes were considered to be potentially billable services. The ROI was calculated for billable and potentially billable services.

Results: A total of 948.3 hours (0.46 full-time equivalents (FTE)), 17% of all clinical services, were billed using CPT codes. This resulted in a total revenue of $173,638.66. Missed revenue from not billing for the G0463 and CCM codes was $68,268.37. The cost of pharmacist services for 0.46 FTE was $78,613.08, resulting in a ROI for billed pharmacist services of 1.2:1. The ROI increased to 1.6:1 when considering potentially billable services.

Conclusion: It is feasible to have a positive ROI for billable pharmacist services. To achieve a sustainable business model, there must be a high volume of billable services. G0463 and CCM codes are often underutilized, yet represent significant opportunities in revenue for pharmacist services and should be pursued.