Duane C. Abbey, PhD, CFP, a nationally recognized expert in payment systems, is president of Abbey and Abbey Consultants, Inc. Dr. Abbey works extensively in all areas relating to coding, billing, and reimbursement with particular emphasis on the chargemaster and outpatient payment. His consulting activities include hospitals, clinics, and physicians. Dr. Abbey. Another special area of expertise includes APGs/APCs. He is recognized as the leading expert in the nation in APGs/APCs by the thousands who have attended his seminars, read his publications, and/or contacted him for his services. Recently, he has begun to turn his focus towards Medicare’s new RAC audits.