OHA Board of Directors

OHA Bylaws

2024 Executive Committee

Denise Webber, FACHE, Chair (2025)
President/Chief Executive Officer
Stillwater Medical Center

Bennett Geister, Chair-Elect (2025)
Mercy Oklahoma City Communities

Tammy Powell, FACHE, Immediate Past Chair (2025)
SSM Health St. Anthony Hospital - Oklahoma City

Corey Lively, Secretary/Treasurer (2024)
Chief Executive Officer
Great Plains Regional Medical Center, Elk City

Rich Rasmussen
President & CEO
Oklahoma Hospital Association

2024 OHA Board of Directors

Northeast Region Chairman
Jonas Rabel, RN, MBA (2025)
Chief Executive Officer
INTEGRIS Miami and Grove hospitals

Northwest Region Chairman
Tom Vasko (2026)
Chief Executive Officer
Newman Memorial Hospital, Shattuck

Oklahoma City Region Chairman
Richie Splitt, FACHE (2026)
President/Chief Executive Officer
Norman Regional Health System

Southeast Region Chairman
Trent Bourland (2026)
Chief Executive Officer
Coal County General Hospital, Coalgate

Southwest Region Chairman
Brent Smith, FACHE (2025)
Chief Executive Officer
Comanche County Memorial Hospital, Lawton

Tulsa Region Chairman
Kevin Joseph, MD, (2024)
Chief Clinical Officer
Ascension St. John, Tulsa

At-Large Members

Richard Lofgren, MD, FACP (2026)
Chief Operating Officer
OU Health, Oklahoma City

Tim Pehrson (2025)
President & CEO

Steve Hartgraves (2026)
Jackson County Memorial Hospital, Altus, and Harmon Memorial Hospital, Hollis

Joe Hodges (2026)
SSM Health Oklahoma

Cindy J. Martin (2026)
Sr. Director, Hospital Administration
Cherokee Nation Health Services, Tahlequah


Physician Member

Cliff Robertson, MD
Saint Francis Health System

AHA Delegates

Charles Grim, DDS (2026)
Secretary of Health
Chickasaw Nation Department of Health, Ada