In 2003, Caremark bought AdvancePCS for $5.3 billion, and CVS acquired Caremark in 2007 in a $26.5 billion deal.
After going public in 1995, MedPartners quickly became the largest PPM company through many acquisitions (see Ross-Loos Medical Group).
The MedPartners name was changed to Caremark Rx, the Talbert Medical Group was sold to the physicians of the Talbert Medical Group, the Riverside Medical Clinic was sold back to the member physicians and remains in operation with over 130 physicians and the Mullikan, and Vineyard Medical Groups were eventually closed.