Mayor Vincent C. Gray appointed Ron Linton as chief taxi regulator in in July 2011. (Executive Office of the Mayor)

The head of the D.C. Taxicab Commission has been laid low in recent days by open-heart surgery, but he pledges to be back on the job soon.

Ron M. Linton was released from Washington Hospital Center Monday after a double coronary bypass.

Linton, 84, said he’ll be easing back into his duties over the next six weeks, with the goal of returning to his office no later than March 31.

The taxi commission has been the center of many a controversy during Linton’s two-and-a-half years in charge — from fare increase proposals to its enforcement efforts against Uber and other high-tech upstarts to its attempts to get credit card machines into all city cabs. But Linton said the next few weeks should be quiet as he regains his strength for new battles against his many adversaries.

“They’ll have to kill me to get rid of me,” he said, mostly jokingly.