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Board and Leadership

Chestnut Health Systems' Board of Directors

  • Mary Ann Webb, Chair
  • Laura Haas, Vice Chair
  • James Foley, Secretary
  • Eliazar Mendiola, Treasurer
  • Angela Allen
  • Vic Armstrong, Jr.
  • Patrick Busch
  • Don Hammer
  • Judy Neubrander
  • Dennis Wilmsmeyer
  • George Wood


Chestnut Family Health Center's Executive Leadership

  • David A. Sharar, Ph.D., Chief Executive Officer
  • Puneet Leekha, J.D., Chief Operating Officer and General Counsel
  • Karen S. Rettick, MBA, Chief Financial Officer
  • Matt Mollenhauer, MS, LCPC, Chief Clinical Officer
  • Victoria Brockhouse, D.O., Medical Director
  • Darrell Rust, D.O. Medical Director of SUD
  • Mark Campbell, Director of Human Resources
  • Randy Dicken, CFM, Director of Facilities
  • Amy Gibbar, MA, Vice President of Integrated Care (Southern Region)
  • Joan Hartman, M.Ed., Vice President of Strategy and Innovation (Central Region)
  • Laurie Holdener, MPA, Corporate Director of Quality and Compliance
  • Jeffrey Koski, Director of Management Information Systems
  • Dietra D. Kulicke, CHCEF, Vice President of Integrated Care (Central Region)
  • Lori Laughlin, Director of Marketing and Communications
  • Orville Mercer, MSW, Vice President of Strategy and Innovation (Southern Region)
  • Christy Scott, Ph.D., Director of Lighthouse Institute
  • Jim Wallis, MAPC, Regional Director of Business Development


Chestnut Family Health Center’s Management Team

  • Victoria Brockhouse, D.O., Central Region Health Center Medical Director and Physician
  • Kevin Garner, MD, Southern Region Health Center Medical Director and Physician
  • Dietra Kulicke, Vice President of Integrated Care (Central Region)
  • Amy Gibbar, MA, Vice President of Integrated Care (Southern Region)
  • Chantel Bailey, Granite City Business Manager
  • Tory Dahmm, CFHC Quality Improvement Manager
  • Pam Kouri, Integrated Health Care Coordinator
  • Emma Melvin, Director of Integrated Wellness (Southern Region)
  • Stephanie Paxton, Bloomington Business Manager
  • Bobbie Tetidrick, Granite City Nurse Coordinator




Chestnut Family Health Center is committed to your health. At present, Chestnut Family Health Center is not offering COVID-19 testing. During the coronavirus outbreak, we have put the following guidelines into practice:


  • If you have a fever, cough, difficulty breathing or have been near someone who has tested positive for COVID-19, please do not come to our office even if you have an appointment. Please call our office for an over-the-phone evaluation by our staff. 
  • If you have concerns about coming to our office for a scheduled appointment, please call our office at least one day before your appointment to talk with staff. 
  • Avoid public places, groups of more than ten people, physically touching other people, and touching your face. Wash your hands often with soap and water for at least 20 seconds. 

We value our patients and want to ensure their safety. Thank you for your cooperation.


If you feel that you have a medical emergency, please call 911 or go to one of the local hospital Emergency Departments.