Mr. William von Oehsen is a principal in Powers, Pyles, Sutter and Verville, P.C., a law firm specializing in health care law and policy. Mr. von Oehsen has more than 30 years? experience in pharmaceutical pricing and reimbursement matters, including the 340B drug discount program, the Medicaid drug rebate program, Medicare Part D, Robinson-Patman, and state Medicaid and pharmacy laws. He helped establish and serves as outside counsel to 340B Health, an advocacy organization of over 1,400 public and private nonprofit hospitals participating in the 340B program. In addition to representing clients on 340B matters, Mr. von Oehsen provides guidance to numerous types of health care entities in their efforts to improve access to pharmaceutical care and ensure compliance with drug pricing laws.