Jeffrey Tunnell
Executive Director

Mr. Jeffrey Tunnell has over 30 years of progressive management and leadership experience in public and private health care sectors.  His diverse background includes outpatient and inpatient settings offering primary, specialty, and tertiary care services.  Mr. Tunnell's visionary leadership style builds upon GBC's long history, strengths, and commitment to excellence.  He strives to improve the health and well-being of the communities we serve; while providing exceptional and compassionate care in the most effective manner possible.



Dr. James Dotter
Chief Medical Officer


Anna Arage
Chief Financial Officer


Lane Johnson
Chief Clinical Officer


Darlyn Sustaita
Chief Operating Officer


Glenn Zengerle
Chief Business Services Officer