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Historically, a pharmacy benefit manager (PBM) is a third-party administrator of prescription. drug programs. PBMs are primarily responsible for developing and maintaining the. formulary, contracting with pharmacies, negotiating discounts and rebates with drug. manufacturers, and processing and paying prescription drug claims.
Medicare Prospective Payment Systems (PPS) A Summary. Prospective payment systems are intended to motivate providers to deliver patient care effectively, efficiently and without over utilization of services.The concept has its roots in the 1960s with the birth of health maintenance organizations (HMOs).