2024 Board of Directors

Board | Staff | Education Committee | Policy Committee | Quality Committee

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 

Travis Broome

Treasurer*
SVP of Policy and Economics
Aledade
Asheville, NC

Emily Brower

Chair*
SVP, Clinical Integration and Physician Services
Trinity Health
Livonia, MI

Clif Gaus, ScD*

President and CEO 
NAACOS
Washington, DC

Tim Gronniger

Chief, Value-based Solutions
Signify Health
Takoma Park, MD

Melanie Matthews

Chair-Elect*
CEO
PSW and MultiCare Connected Care
Olympia, WA

Jen Moore

Member-at-Large*
President
MaineHealth ACO
Portland, ME

Geoffrey Nicholson, Jr., MD

SVP, Population Health
WellSpan Health
York, PA

Stephen Nuckolls

Secretary*
CEO
Coastal Carolina Quality Care and Coastal Carolina Health Care
New Bern, NC

Margarita Ollet

CEO
Health Choice Care, LLC
Miami, FL

Arshad Rahim, MD

CMO & SVP, Population
Health & Clinically Integrated Network
Mount Sinai Health System
New York, NY

Bob Rauner, MD

President
Partnership for a Healthy Nebraska
Lincoln, NE

Jenny Reed

Senior Vice President, Value-based Care
Baylor Scott & White Health
Dallas, TX

Rebecca Rohrbach

Chief Population Health Officer
NOMS Healthcare
Sandusky, OH

Nina Taggart, MD

Medical Director
Lehigh Valley Health
Network ACO
Allentown, PA

Anthony Valdés

President
Collaborative Health Systems
Centene
Tampa, FL

 *Designates Corporate Officer and/or NAACOS Board Executive Committee