Doc Rivers Is the Head Coach of Nba Team Boston Celtics. So How Rich Is Rivers, Exactly? His Net Worth Is Estimated to Be Around $16 Million. Born Glenn Anton Rivers in 1961 in Chicago, Illinois, He Attended Wisconsin‘s Marquette Univeristy Where He Played in the College‘s Basketball Team and Lead a Good Professional Basketball Player Career Before Becoming a Coach – He Was Already Playing in the Nba When He Graduated. by the Way, River‘s Nickname Was Given to Him by Rick Morajus, Who Called Him “Doc“ After Seeing Rivers Wear a Dr. J T-Shirt in the Summer Basketball Camp. Everyone at the Camp Started Calling Him That Too, and the Name Stayed.