National Alliance Staff


Michael Thompson

President & CEO

Michael Thompson is the president and CEO of the National Alliance of Healthcare Purchaser Coalitions (National Alliance), the only nonprofit, purchaser-led organization with a national and regional structure dedicated to driving health and healthcare value across the country.

Prior to joining the National Alliance, Mike was a Principal at PricewaterhouseCoopers (PwC) for 20 years. He is a nationally recognized thought leader for business health strategies and health system reform. Mike has worked with major employers and other stakeholders on sustainable cost reduction, integrated health, wellness and consumerism, retiree health, private health exchanges and health reform. Known for developing and promoting collaborative cross-sector health industry initiatives, Mike participated on the steering board of the World Economic Forum’s “Working toward Wellness” initiative and co-founded the Private Exchange Evaluation Collaborative (PEEC). Prior to PwC, Mike served as an executive with diverse roles with Prudential Healthcare for over 17 years.

Mike is a Fellow of the Society of Actuaries, serving on the Health Practice Council, and chairs the Medicare Sub-Committee of the American Academy of Actuaries (AAA). He is also widely recognized as a leading national advocate for mental health and wellbeing and was past president of the New York City chapter of the National Alliance for Mental Illness (NAMI). Mike previously was an active member of the board of the Northeast Business Group on Health for 11 years.


Margaret Rehayem

Vice President

Margaret Rehayem is the Vice President of the National Alliance and in her role, provides leadership for national initiatives that support member collaboration, helping coalitions leverage their regional efforts at the national level to drive innovation, health and value for organizations and communities across the country. Her focus has been in health & wellbeing, continuous improvement frameworks, multi-stakeholder collaboratives, and the development of strategies that support system & delivery reform. She has over 20 years' experience working with employers in various areas from understanding their data to supporting their efforts in overall healthcare strategic planning.

Margaret also oversees a number of grant activities that work with national funding organizations such as the CDC Foundation and PCORI. She serves as a main contact for member coalitions; fostering relationships, and supporting coalition members through networking and capacity building opportunities. She also helps drive the direction of the organization’s National Health Leadership Council and engages with employers of different industries through the National Purchaser Leadership Council (NPLC).

Margaret is a national speaker on a number of healthcare topics including business performance & leadership, health benefits, medical & pharmacy drugs, biosimilars, employee engagement, organizational culture, and the impact of health and wellbeing in organizations.

Before joining the National Alliance, she was on the leadership team for almost a decade at the Midwest Business Group on Health, a leading business coalition in Chicago. Early on in her career, she created and managed an award-winning employee health and wellness program for 11 years at a community college. She has been involved with various Advisory Boards including with the National Health Council and the Innovative Value Institute. She has been an adjunct faculty professor since 2008 and most recently taught corporate health and entrepreneurship at the University of Illinois at Chicago.


Maria Cornejo

Director of Operations

Maria Cornejo, director of operations, has been with the National Alliance since 1996. She oversees the day-to-day operations of the National Alliance and manages the full range of administrative, logistical and operational duties in a wide variety of program areas including human resources, accounting, budgeting, board liaison, information technology, and assistance in program development. Maria also oversees all aspects of the National Alliance website. Maria is a Washington, D.C. native. She is also bilingual (English & Spanish).


Karlene Lucas, RRT, MBA

Director, Development and Program Management

Karlene Lucas is responsible for Affiliate Membership and event management. She has more than 12 years' experience working with employers in the areas of value-based benefit design, diabetes, asthma and wellness initiatives. Karlene has been published in several health care journals, notably Health Affairs for her work on an innovative value-based benefit design program in diabetes. Prior to joining the National Alliance, she was the director of education and demonstration projects for the Florida Health Care Coalition (FLHCC). FLHCC is the only business coalition in Florida representing nearly two million covered lives. Its clinical quality Initiative has been recognized locally, statewide and nationally by ABC World News Tonight, The New York Times, and The Wall Street Journal.

Karlene holds a BS in Cardiopulmonary Sciences from the University of Central Florida and an MBA from Nova Southeastern University.


Alyssa Barilotti

Project, Technology & Member Relations Manager 

Alyssa Barilotti graduated from Arcadia University with dual BAs in International Studies and French in 2016. She has worked with the National Alliance since 2016. Alyssa assists the director of operations in managing the programs and administration of the National Alliance in administrative, including social media management and website design and management.


Foong-Khwan Siew, PhD, MBA

Director of eValue8™

Foong-Khwan Siew is responsible for managing the eValue8 program, the National Alliance national initiative to evaluate the performance of health plans. Foong-Khwan has more than 20 years’ experience in the health care industry with assignments in market research, promotion and marketing, including launch of the first and only chickenpox vaccine in the US. She also has extensive experience working in international markets with different stakeholders in the health care industry including purchasers, physicians, coalitions and health plans.

Foong-Khwan holds a BS in Math and Chemistry from Trinity University, a PhD in Chemistry from the University of Pennsylvania, a post-doctoral from Cambridge University, and an MBA from Wharton. She is also bilingual (English and Cantonese) and speaks French and Malay/Indonesian.


Cary Conway

Director of Communications

Cary Conway is responsible for developing external communication materials and media relations. She has served as a consultant for National Alliance of Healthcare Purchaser Coalitions since 2004. Cary has consulted since 1999 and previously served in a variety of communication roles for Motorola Semiconductor Products Sector (now Freescale Semiconductor). Before joining Motorola, Cary managed public relations for an advertising and marketing agency and also held positions with a Dallas public relations firm.

Cary speaks on a variety of communications, media training, and public relations topics. She holds a BS in journalism/public relations from the University of Kansas.