Is it common for PBMs to maintain multiple MAC lists for individual clients?

Pharmacy Benefit Managers (PBMs) often maintain multiple Maximum Allowable Cost (MAC) lists for individual clients to tailor their services according to the specific needs of each client. This practice allows PBMs to consider various factors such as the client’s pharmacy network, drug utilization patterns, and the competitive market in which they operate. By customizing MAC lists, PBMs can optimize drug pricing strategies, enhancing profitability while catering to the diverse requirements of different clients. This flexibility is especially valuable in a landscape where cost management and negotiations are critical to both PBMs and the clients they serve.

In contrast, a singular MAC list would lack the adaptability needed to address the varying circumstances of each client. The other options imply a more rigid structure regarding MAC lists that doesn't account for the business strategy and operational complexities that PBMs encounter when working with different clients.