Scott D. Hayworth, MD, FACOG . Dr. Hayworth is the CEO and Market Leader of Optum Tri-State Region, having become its president in March, 2021. One of five regions in the Optum nationwide network, Optum Tri-State comprises three large multispecialty groups, CareMount Medical, ProHEALTH NY, and Riverside Medical Group, serving 1.6 million patients at 630 locations..