Who We Are

Transparency is at the heart of everything we do. We operate with openness to earn and keep the trust and confidence of our members, partners and other important stakeholders.

Meet our community.

Our Founders

GX was created by leaders deeply committed to health care sustainability to accelerate the adoption and use of products that are safer and healthier for people, communities and the environment.  

Gundersen Health System
University of Vermont Health Network
Marshfield Clinic Health System
Mayo Clinic
Virginia Mason
Health Care Without Harm
Mass General Brigham 
Practice Greenhealth

Our Board

Our board provides leadership, vision and guidance, every step of the way.

Gary Cohen
President and Founder, Health Care Without Harm and Practice Greenhealth

Kenneth Kelliher
Vice President, Supply Chain, Dartmouth-Hitchcock

Sister Mary Ellen Leciejewski
OP, Director of Ecology, Dignity Health

Jason Little
Vice President, Supply Chain, Marshfield Clinic

Bruce Mairose
Vice Chair, Category Management, Mayo Clinic

John Messervy
AIA, Corporate Director of Design and Construction, Mass General Brigham

Charles Miceli
Vice President, University of Vermont Medical Center

Neeta Moonka
Associate Medical Director, Business Services, Virginia Mason

Gerald Poetzel
Chief Financial Officer, Gundersen Health System

Our Team

Greenhealth Management provides strategic and operational support to GX, with a team of professionals with deep expertise in health care procurement, supply chain management and sustainability.

John Strong, President

Mary Starr, Chief Operating Officer

Jamie Dwyer, Sustainability Manager

Dawn Martinko, Director, Member Operations

Judy Rivera, Administrative Coordinator

Our Partners

Our partners put their extensive understanding of sustainability to work for GX members, so your purchases create a more sustainable world.

Chemical Footprint Project
Health Care Without Harm
Practice Greenhealth
Responsible Purchasing Network