2024 Board of Directors

The NAACOS Board of Directors works to advance the vision and values of NAACOS, which focuses on fostering the growth of the ACO model of care. Board members represent a diverse range of ACO interests and help shape NAACOS priorities such as educating ACOs in operational and clinical best practices, advocating on behalf of ACOs with Congress and the executive branch, and educating the public about the value of accountable care. Board members serve three-year terms and a third of the committee is comprised of newly elected members each year. 
Rebecca Adkins
SVP Population Health
Jefferson Health
Indianapolis, IN
Stephen Nuckolls

Coastal Carolina Quality Care and Coastal Carolina Health Care
New Bern, NC
Travis Broome
SVP of Policy and Economics
Asheville, MD                 
Margarita Ollet
Health Choice Care, LLC
Miami, FL
Emily Brower
SVP, Clinical Integration and Physician Services 
Trinity Health
Livonia, MI
Arshad Rahim, MD
CMO & SVP, Population Health & Clinically Integrated Network
Mount Sinai Health System
New York, NY
Clif Gaus, ScD*
President and CEO 
Washington, DC
Bob Rauner, MD
Chief Medical Officer
OneHealth Nebraska ACO, LLC
Lincoln, NE
 Tim Gronniger
Chief, Value-based Solutions
Signify Health
Takoma Park, MD
Jenny Reed
Senior Vice President, Value-based Care
Baylor Scott & White Health
Dallas, TX
Melanie Matthews

PSW and MultiCare Connected Care
Olympia, WA
Rebecca Rohrbach
Chief Population Health Officer
NOMS Healthcare
Sandusky, OH
 Jen Moore

MaineHealth ACO
Portland, ME
Nina Taggart, MD
Medical Director
Lehigh Valley Health Network ACO
Allentown, PA
Geoffrey Nicholson, Jr., MD
SVP, Population Health
WellSpan Health
York, PA
Anthony Valdés
President, Collaborative Health Systems
Tampa, FL
 *Designates Corporate Officer and/or NAACOS Board Executive Committee