Ellen Vos

Ellen O'Connor Vos is the founder of Phase Five Communications LLC.
Currently, Ms. Vos is Chairman at OptimizeRx Corp.
since 2024, Chairman at MediSafe, Inc. since 2023, Chairman at Medisafe Project Ltd., Director at Modular Medical, Inc. since 2022, Director at The Jed Foundation since 2000, Member of Women Business Leaders of the US Health Care Industry Fnd, President at Vos Health LLC since 2020, and Member at Extraordinary Portfolios LLC since 2021.
Formerly, Ms. Vos was President & Chief Executive Officer at Muscular Dystrophy Association, Inc. from 2017 to 2020, Chief Executive Officer at Wunderman Thompson Health from 1996 to 2017, and Chief Executive Officer at Grey Healthcare Group, Inc. from 1996 to 2017.
Ms. Vos also served as Director or Independent Director at nTelos, Inc., NTELOS Holdings Corp., Scrollmotion, Inc., Adheris LLC, Aspira Women's Health, Inc. from 2023 to 2025, The Multiple Myeloma Research Foundation, Inc., PARx Solutions, Inc., Healthcare Businesswomens Association, YMCA of Greater New York, Ntelos Wireline One, Inc., Windward School, Inc., and was a Member at Harvard Business School.
Education includes undergraduate studies at Alfred University.