Donna Schlemmer, CPC. Compliance Auditor, ACE, Inc. Ms. Schlemmer has more than thirty years of experience in billing operations and reimbursement management and reporting; more than twenty years specifically in anesthesia and pain management. Schlemmer was employed at Washington University School of Medicine in St. Louis, MO for over twenty years where she managed the front-end processes, accounts receivables, and financial reporting for the Departments of Surgery and Anesthesiology and is well versed in billing and accounts receivable software technology. Schlemmer formed a medical billing company in 1998 exclusively for anesthesia and pain management services. From 2005 to present, she has been employed with Auditing for Compliance and Education, Inc. (ACE) as a compliance auditor and in 2006 she received her Certified Procedural Coding (CPC) certification.