Get to know our leadership team, experts and board members who are dedicated to achieving a world without HIV/AIDS. Under their guidance and strategic oversight, Vivent Health makes it possible for all clients, allies, staff and donors to thrive together.

Board of Directors

Arvan Chan, Board Chair

Centene Corporation (Retired)

St. Louis, MO

Noel Landuyt, PhD, Vice Chair, Development Chair

University of Texas

Austin, TX

Aimee Becker, MD, Quality Chair

UW Health

Madison, WI

Matt Browning

Rockwell Automation

Palm Springs, CA

Poonnasa Corn, Finance, Audit & Risk Chair

Edward Jones

St. Louis, MO

Ryan Cox, PhD

Truman Medical Centers

Kansas City, MO

Robert Garofalo MD, MPH

Lurie Children's Hospital of Chicago

Chicago, IL

Robbie Harriford, MD, Quality Assurance Chair

Samuel U. Rodgers Health Center

Kansas City, MO

Kevin Haynes

University of Texas

Austin, TX

Clarence Jennings, Jr.

Washtenaw Community College

Ann Arbor, MI

Sussann Kotara, MD


Austin, TX

Marcus Leonard

Bain & Company

Chicago, IL

Eve Mokotoff, MPH

HIV Counts

Ann Arbor, MI

Michael Murphy

Hillrom Healthcare Corporation (Retired)

Chicago, IL

Gordon Myers

St. Louis, MO

John Nygren

Wisconsin Assoc. of Health Plans

Madison, WI

Mike Romano

Orthopedic Centers of Colorado

Denver, CO

Hon. Brian Sims (Ret.)

Politician, Attorney, Civil Rights Advocate

New York, NY

James Sumers

United Airlines

Chicago, IL

Aisha White, MD

Quintessence Plastic Surgery

Austin, TX


President and CEO


Brandon Hill Vivent Health President and CEOBrandon Hill

Dr. Brandon Hill is a graduate of Indiana University, having obtained both a bachelor’s in gender studies and a doctorate in gender studies with a concentration in psychology from the Bloomington, Ind., school. He has more than 15 years of experience in health care and leadership in HIV, LGBTQIA+ and women’s health.

He has extensive operational and research expertise, having worked previously as the executive director of education, research and advocacy at the Howard Brown Community Health Center in Chicago and as the president and CEO of Planned Parenthood Great Plains, which serves Arkansas, Kansas, Missouri and Oklahoma.

Senior Leadership Team

Brie Anderson

Senior Vice President of Operations

Tawnya Brown

Vice President of Grant Administration

Leslie Cockerham, MD, MAS

Chief Medical Officer

Cindy Cooper

Vice President of Strategic Communications

Damerick Davis

Vice President of Health Services Optimization

Theresa Dear

Chief People Officer

Timothy D. Dyer, CPA

Executive Vice President & Chief Financial Officer

Tony Fields, PharmD

Chief Pharmacy Officer

J. Daniel Guinn, JD, MA

Vice President of Compliance and General Counsel

Bill Keeton

Chief Advocacy Officer

Margaret Lidstone

Chief Development Officer

Emma Sinnott

Vice President of Operations (Austin)

Lyssa Towl

Vice President of Operations (Denver)

Bob Walker

Vice President of Operations (Missouri)

Carla Washington

Vice President of Operations (Wisconsin)

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