Mary Johnson MS Merck & Co., Inc.
![Mary Johnson MS Mary Johnson MS](https://pda.org/images/default-source/speaker-photos/mary-johnson-ms-2344430.jpeg.jpeg?sfvrsn=1b49224d_0)
Mary Johnson MS Merck & Co., Inc. Associate Principal Scientist
Mary Ann Johnson has more than 20 years in the Pharmaceutical industry and her experience spans formulation development and techology transfer. She has a MS in Chemical Engineering from Widener University.