The health contractor under investigation by the Minnesota Attorney General plans to release more information about the case Friday.
Sen. Al Franken had asked Accretive Health to answer questions about its debt collection activities.
His inquiry came after Attorney General Lori Swanson leveled a series of allegations against the Chicago-based company, including that the company violated state and federal patient privacy and debt collection laws by seeking payment from patients at their bedsides and in the emergency room.
Accretive Health has denied the allegations and told market analysts this week that the truth will come out. The company has also asked a federal judge to dismiss the lawsuit the attorney general filed earlier this year.
Accretive Health has seen a sharp drop in its stock price amid the allegations, and company officials have issued more conservative estimates for revenues this year.