2025 Board of Directors

Board | Staff | Education Committee | Policy Committee | Quality Committee | 2025 Call for Committee Nominations

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

Member-at-Large*
SVP Population Health
Jefferson Health
Indianapolis, IN 


Henish Bhansali

Chief Medical Officer
Medical Home Network
Chicago, IL


Sean Cavanaugh

Chief Policy Officer
Aledade
Bethesda, MD


Clif Gaus, ScD

President and CEO 
NAACOS
Washington, DC


Mark Gwynne

President
UNC Health Alliance/Senior Alliance
Chapel Hill, NC

Melanie Matthews

Chair*
CEO
PSW and MultiCare Connected Care
Olympia, WA

Jen Moore

Chair-Elect*
President
MaineHealth ACO
Portland, ME

Geoffrey Nicholson, Jr., MD

SVP, Population Health
WellSpan Health
York, PA

Stephen Nuckolls

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

Margarita Ollet

CEO
Health Choice Care, LLC
Miami, FL

Andrea Osborne

Senior Vice President,
ACO Operations and Delegation
VillageMD
Indianapolis, IN

Arshad Rahim, MD

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

Jenny Reed

Senior Executive Officer
Southwestern Health Resources


Megan Reyna

Group Vice President,
Population Health
Bon Secours Mercy Health
Cincinnati, OH

Robert Waterhouse

Chief Medical Officer
Baylor Scott & White
Dallas, TX

 *Designates Corporate Officer and/or NAACOS Board Executive Committee