Governing Board of Directors

Helping us to find a brighter future and guide us in our mission to deliver high-quality health care, the Sierra Vista Regional Medical Center and Twin Cities Community Hospital governing boards give us the perspective we need to move forward. Learn more about the members of our governing board in health care and their board responsibilities below.

Sierra Vista Regional Medical Center

Chair: Ron Reilly, President and CEO, Garing, Taylor & Associates, Inc.
Vice Chair: Jill Stearns, Ph.D., President, Cuesta College

Other Board Members:

  • Cindy Holt, M.D., Pediatric Hospitalist, Chief of Staff
  • Brandie Firetag, M.D., Pathology, Affiliate Pathologists of the Central Coast
  • Brad Knox, M.D., Emergency Medicine, Central Coast Emergency Physicians
  • Jill Bolster-White, Executive Director, Transitions Mental Health Association
  • Jacob (Jake) Rothman, Portfolio Manager, Rothman Investment Management
  • Curby Jenkins, D.O., Anesthesiologist, Coastal Anesthesiology Medical Associates of San Luis Obispo
  • Ross Michel, M.D., Pulmonologist, Central Coast Chest Consultants
  • Aydin Nazmi, Ph.D., Professor, Food Science & Nutrition, California Polytechnic – San Luis Obispo
  • Cynthia Valenzuela, Attorney
  • Mandana (Mandy) Toole, MD, Emergency Medicine, Central Coast Emergency Physicians
  • Christopher (Chris) Johnson, MD, Urologist, Urology Associates
  • Christopher (Chris) Heylman, Ph.D., Assistant Professor, Biomedical Engineering , California Polytechnic – San Luis Obispo
  • Cindy Holt, MD, Pediatric Hospitalist, Pediatrix Medical Group of CA
  • Otto Schueckler, MD, Orthopedic Surgeon, Central Coast Orthopedic Medical Group
  • Ron Yukelson, Business Development Director, Carmel & Naccasha, LLP

Twin Cities Community Hospital

Chair: Oma Knox, M.D., Emergency Medicine
Vice Chair: Maria Elena Garcia, Pharmacy Technician
Secretary: Jeff Briltz, Manager, Templeton Community Services

Other Board Members:

  • Michael Silvas, M.D., Family Medicine
  • Mareeni Stanislaus, M.D., Obstetrician
  • Dusty Colyer-Worth, Executive Director, GALA
  • Andrew Dixon, M.D., Anesthesiologist
  • Ann Miller, R.N., Educator
  • Joe Robinson, M.D., Emergency Medicine
  • Hendrik Breytenbach, M.D., Family Practice
  • Angela Hollander, Retired Registered Nurse
  • Rachel Hunter, HR Manager, City of Atascadero
  • Christopher Huot, Assistant City Manager, City of Paso Robles
  • Georgianna Potter, Pharmacist
  • Candice Sanders, Executive Director, Cancer Support Community 
  • Gretchen E. Winter, D.O, Hospitalist and Chief of Staff