The Roberts campaign linked Wolf, a partner at Radiance Alliance, to the lawsuit just one day after the campaign slammed the doctor for joking about graphic x-rays he posted on Facebook.
"What has Dr. Wolf done in his own practice to hold down health care costs?" Roberts spokesman Leroy Towns asked in a statement. "Planting this (lawsuit) story in the media, and desperately trying to connect it to my policy propositions, is par for the course for a 47-year Washington insider."
Wolf issued a statement on Monday claiming the suit had nothing to do with the campaign.
"Attempts to link this frivolous case to public policy propositions I have made while running for U.S. Senate show either a failure, or a refusal, to follow the facts," he said, according to the Kansas City Star.
The Star notes that Wolf is not listed as a defendant in the case, though he is employed by Radiance Alliance.