Executive Leadership Team

Prior to joining DIA in 2023, Fathallah was the Operating Officer and EVP at Ortho Clinical Diagnostics, accountable for Operations, Post Market Product Science and Engineering, Regulatory, Quality, Medical, Clinical, Scientific Affairs, and Process Excellence. Before joining Ortho, he held Executive and Senior Leadership roles in Research and Development, Operations, and Regulatory Medical and Clinical Affairs at Avantor, Danaher, Pfizer, Hospira, and Abbott Laboratories. Fathallah holds a Master’s and Bachelor of Science degrees in Mechanical Engineering from the Univ. of Wisconsin-Madison and an MBA from the Kellogg School of Management at Northwestern University.

Jack has over 25 years’ experience in the Life Sciences industry. He began his career with Wyeth International where he supported the growth of Wyeth’s developing markets in Europe, the Middle East and Africa. Following Wyeth, Jack held a senior finance role with Auxilium Pharmaceuticals until its acquisition by Endo Pharmaceuticals in 2015. He then joined InClinica, Inc., a boutique CRO, in 2016 and was CFO until its liquidation in 2020. Following InClinica, Jack consulted for multiple development-phase companies in the Biotech & Instrument spaces until joining DIA in late 2021. Mr. Foster holds a Bachelor of Arts in Finance from Temple University and a Master of Business Administration degree from Villanova University.

Timothy Hess serves as Global Head of Business & Digital Technology, responsible for DIA’s global IT operations, computer infrastructure, customer and membership management databases, and website. He previously served as Director of Business Technology for Thomas Publishing Company LLC, where he managed all internal business systems, production systems, and technology projects; and as Vice President &Chief Technology Officer for Content Data Solutions, Inc., and as R&D Director for Reed Technology & Information Services. A proven technology thought leader with extensive experience in delivering high-performance systems that solve complex business problems in all development environments.

Katie serves as Senior Vice President & Managing Director, Global Products and Professional Education, and is responsible for development and implementation of DIA’s Learning and global product strategy, including membership. Katie joined DIA in 2003 and has served in successively broader roles in training, volunteer services and program development, and managed DIA’s extensive portfolio of instructor-led and online courses. Prior to DIA, Katie served as Legislative Aide to Texas State Senator Steve Ogden, as an assistant in the US FDA Office of Policy, and as a high school history teacher. Katie earned her BA in History and Masters’ Degree in Secondary Education from Trinity University.

Hiro has over 35 years experience in pharmaceutical R&D. Previously he assumed numerous leadership positions at Takeda such as Shonan R&D Site Head, deputy global head of Pharmaceutical Sciences and VP of CSO Office. During his time at Takeda working both in Japan and US, he led numerous strategic initiatives for R&D productivity improvement and managed multiple post-merger integration. He began his career at Bayer, working as global project leader both in Japan and Germany. He worked for IQVIA Services Japan and leading Regulatory Affairs and Drug Development Solutions- Japan. Hiro received his PhD from Osaka University Graduate School of Medicine.

Young Joo Park serves as Vice President, overseeing operations in Korea, Singapore, and Southeast Asia. With over 25 years of experience at MSD and Sanofi, she has excelled in organizational management and clinical trials across diverse therapeutic areas, including oncology, cardiovascular disease, endocrinology, and infectious diseases. She also worked for the Korea National Enterprise for Clinical Trials (KoNECT), an affiliate of the Korean Ministry of Health and Welfare, as Head of Business Development and Global Cooperation. Most recently, she served as CEO of the U.S. subsidiary of a gene therapy company. Young Joo Park holds a Ph.D. in Epidemiology and an MPH degree from Seoul National University.

Carie serves as Global Head of Growth for DIA. She comes to DIA with over 20 years in the Medical Device industry. She has spent much of her career with Terumo Blood and Cell Technologies in various commercial leadership roles, including responsibility for the Global IV Drug and CMO Pharmaceutical Solutions business. Most recently Carie was Head of Donor Screening at QuidelOrtho, focused on in vitro diagnostic testing. Ms. Pierce holds a Master of Science, Physical Therapy degree from Regis University and is a Colorado native.

Katie Truong is the Senior Vice President & Managing Director of DIA Americas and the Global Head of Business Operations. In her role, Katie focuses on driving growth, optimizing operations, and enhancing business performance. With experience spanning various industries, including government, design, and professional services, she brings a wealth of knowledge to DIA. Katie holds a Bachelor of Arts degree with High Distinction from the University of Virginia and an MBA from New York University Stern School of Business, specializing in strategy, leadership, and change management.

Dr. Vassileva has decades of experience with managing complex multi-stakeholder biomedical research programs. She spent most of her career in the nonprofit sector, leading the Science Team at the Arthritis Foundation, and working at the Foundation for NIH and the American Association for the Advancement of Science. She was also on the leadership teams of two health research organizations, serving as project director on multiple government contracts. Her areas of expertise include musculoskeletal, metabolic, immunity and inflammation disorders, as well as patient engagement. She received her PhD in Biochemistry and Cell Biology from Johns Hopkins.

Tong-Yan brings 20+ years of experience in the pharmaceutical industry with a track record of business leadership and development, engagement with stakeholders across industry and government, and volunteer leadership experience in non-profit associations. She joins DIA after spending 4 years as the CEO of Sanpower Group to build up its healthcare business. Before Sanpower, she worked in Xi’an Janssen in various roles under General Med, Specialty Rx, and Market Access & Government Affairs. Tong-Yan started her career as a professor at Xian Medical University after receiving her Bachelor of Medical Science degree. She earned her MBA from Xian Jiao Tong University and her PhD in Management from ISCTE in Lisbon, Portugal.