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ATS Staff
Suzanne M. Prentiss, BA, MPA, NRP

Executive Director

Click Here to Email / Extension 1761

Sue Prentiss serves as the executive director of the ATS, leading efforts to grow and support the organization’s programs, research, and resources. At the ATS, Sue works with leadership on the development and enhancement of trauma systems, regionalized systems of care and resources to assist providers in the treatment of trauma patients. She has more than twenty years of experience in emergency medical services (EMS) leadership at the state, regional, and national level including serving as the state of New Hampshire's Trauma System Coordinator. Since 2017, she has been an Advocate for the Recognition of EMS Personnel Licensure Interstate CompAct (REPLICA) a program of the National Association of State EMS Officials (NASEMSO). She was the manager of EMS at the Concord Hospital Emergency Department (NH), Level II trauma center, since 2010, and before that she worked as the EMS bureau chief for the State of New Hampshire. Currently Sue is serving her fifth two-year term as the city councilor in Lebanon, New Hampshire, and her second term as Lebanon's mayor. She received a BA in Sociology from Saint Michael's College and an MPA from the University of Phoenix. In 2014 she attended Harvard University's Kennedy School of Government program for Senior Executives in State and Local Government. She continues to maintain a certification as a nationally registered paramedic.


Kathy Robinson, RN, QAS

Associate Director

Click Here to Email / Extension 1894

Kathy Robinson is the Associate Director for the ATS, coordinating educational and certification programs for trauma managers and registrars. Kathy has more than 25 years experience in EMS and emergency nursing as a clinician, government administrator, patient advocate, and health care policy consultant. Her extensive experience as a licensed registered nurse and certified paramedic includes various clinical and administrative roles at both a rural and large tertiary care medical centers in central Pennsylvania. In addition, Kathy managed multiple grants, supervised EMS training programs, coordinated the clinical research program, and was responsible for the development and implementation of EMS clinical policies, protocols, and procedures. Kathy has worked side-by-side with legislators and staff to implement critical policy initiatives at the state and federal level. Kathy understands the unique perspectives and needs of volunteer membership associations, having served in appointed and elected leadership and Board positions at the local, state, and national levels. She has authored numerous publications and has lectured extensively both in the United States and abroad.


Claire Etheridge, BA, QAS

Member Relations and Programs Manager

Click Here to Email / Extension 1701

Claire Etheridge serves as the Membership and Programs Manager for the ATS. Claire is responsible for supporting ATS day-to-day membership recruitment efforts, providing customer service to those seeking information about the organization, and administratively supporting ATS course planning and logistics. Prior to joining the ATS, Claire previously served as a Communications Associate with Red Ventures, an internet marketing and sales firm in Charlotte, NC. She graduated Magna Cum Laude from the College of William and Mary in Williamsburg, VA.



McKenzie Riley, BA, MS

Educational Programs Manager

Click Here to Email / Extension 1893

McKenzie Riley serves as Education Manager for the ATS. McKenzie is responsible for maintaining and expanding the existing in-person, online and other distance-based educational programming, assisting association committees and councils with the design and development of new educational programming, and managing the certification program and promoting various organizational products and services. McKenzie will work directly with the educational committees in the development and enhancement of educational programming for ATS’ members. Prior to joining, McKenzie was the assistant director of conferences and marketing at George Mason University where she managed an annual short term and conference guest program resulting in $750,000 revenue over three months. Before she came to northern Virginia in May 2017, she was the community director for Southern Illinois University, Edwardsville. In that position from July 2013-May 2017, she managed the daily operations of a 500-bed residential facility for first-year students. McKenzie earned a MS in Education Administration from Southern Illinois University, Carbondale in May 2013, and a BA in Elementary Education from the University of Missouri, St. Louis in May 2011.


Katherine Joseph, BS, MPH

TSN National Coordinator

Click Here to Email / Extension 1777

Katherine Joseph is the National Trauma Survivors Network Coordinator for the American Trauma Society. Her focus is to support TSN coordinators as they implement and strengthen the TSN at their local trauma centers. She also provides ongoing training and education, develops and promotes best practices, and provides technical assistance. Prior to joining the ATS, Katherine was one of the TSN Coordinators at the R Adams Cowley Shock Trauma Center in Baltimore, MD. More recently, she served as a lead clinical research specialist for the Department of Orthopaedics at the R Adams Cowley Shock Trauma Center. Katherine earned a MPH in Community and Population Health from the University of Maryland, Baltimore in August 2017, and a BS in Health Science from Towson University, Baltimore in May 2012.


Eileen Flores, LCSW

TSN Program Advisor

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Eileen Flores is the Trauma Survivors Network Program Advisor for the American Trauma Society. Her work focuses on supporting national office staff and TSN Coordinators as they implement and maintain the TSN at their local trauma centers. Prior to and while serving in this role, Eileen served as one of the TSN Coordinators at Carolinas Medical Center in Charlotte, NC. She has a BS in Social Work from Cedarville University and a MS in Social Work from the University of Oklahoma.




Clay Tyeryar, MAM, CAE, QAS

Management Counsel

Click Here to Email / Extension 1781

Clay’s areas of expertise include international trade, lobbying, government relations, fundraising, international exhibition management and production, trade missions and financial controls. He is chief staff executive for several ASMI clients, including the American Trauma Society (ATS). He was one of the first graduates of The George Washington University’s Master of Association Management Program, and is a graduate of Gettysburg College with a B.A. in Business Administration.



 Julie Husk, JD

Program Coordinator 

Click Here to Email / Extension 1789

Julie is Program Coordinator for the ATS, providing support to committees and work groups.  Prior to joining ATS, Julie worked at SunTrust Bank as a trust officer in their Trust Department managing estates and trusts. She also is an attorney who specialized in insurance defense, trusts and estates, and probate administration. Julie has a J.D. degree from The University of Toledo Law School and a Bachelor of Science in Finance from Miami University. 





Additional Headquarters Staff

A variety of additional staff specialists serve ATS, including a finance manager, receptionist, office manager, mailroom staff, management counsel, and special projects staff as the need arises.




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