Our Leaders

Doug Holzbog

Chief Executive Officer

Doug Holzbog joined Parkview Regional Hospital as Market Chief Executive Officer (also overseeing Ennis Regional Medical Center and Palestine Regional Medical Center) in April 2024, bringing more than 30 years of healthcare experience to the position. Doug has held a series of senior leadership positions in both Physician and Hospital Operations in Durant and Lawton, Oklahoma; Paris, Texas; and Muscle Shoals, Alabama. He also owned and managed a medical and billing company for 20+ years. Doug graduated with a Master’s in Business Administration-Healthcare Management from Western Governors University and earned a Bachelor of Science in Biology from Texas A&M-Commerce. A native Texan, Doug spent his childhood years in Forestburg, Texas, and raised his family in Denison, Texas. He and his wife, Charla, have four children who are now raising their own wonderful families. In his spare time, Doug enjoys time with family and friends, all forms of fishing, live music, and being outdoors.

Tim O'Neal

Chief Operating Officer

Tim O’Neal, MBA, BSN, RN, joined Parkview Regional Hospital and Ennis Regional Medical Center as Chief Operating Officer in 2024 after working as a Project Executive for ScionHealth – serving as Chief Nursing Officer and Chief Operating Officer – at facilities in Ohio and Wyoming.

Born and raised in a small town in West Virginia, Tim has more than 20 years of healthcare experience in nursing, complemented by more than 15 years of leadership experience in large-scale, fast-paced healthcare settings. He’s served patients and communities in various capacities, from Emergency Room and Trauma nursing to the ICU, to instructing the next generations of caregivers as faculty, and in leadership roles in ER, Trauma, and Emergency Preparedness departments.

Tim is a results-focused executive who believes in servant/transformation leadership. Lean/Six Sigma-trained, Tim earned his associate’s degree in Nursing in 2001, his Bachelor of Nursing in 2003, and his Master of Business Administration in 2013. Tim lives in the area and has been married for 20 years. He has two children, 17 and 14 years of age. When not working, he enjoys fishing, hunting, and taking full advantage of time with family.