About Us

Seton Medical Center Harker Heights (SMCHH) is an 83-bed acute care hospital opened in 2012 in Harker Heights, Texas offering an array of services such as a Cardiology, Emergency Services and a Level IV Trauma Designated Emergency Room, General Surgery, Orthopedic Surgery, Total Joint Replacement, Gastroenterology, a dedicated Women’s Center, Diagnostic Services and more. We provide exceptional care through collaboration with our associates, physicians, volunteers and community partners. Our award-winning staff provides patient care with dignity and respect.  We are Joint Commission Accredited, an Accredited Chest Pain Center, and Advanced Primary Stroke Center. SMCHH is a joint venture between the Austin-based Seton Healthcare Family and Nashville-based  Ardent Health Services.

Our Mission

We are called to serve each patient with dignity and respect while always providing exceptional care.  Our mission as a Catholic Health Care Ministry inspires us to provide care for and to improve the health of those we serve with a special concern for the poor and the vulnerable.  We are called to be a sign of God’s unconditional love for all and believe that all persons by their creation are endowed with dignity. We provide exceptional care through collaboration with our Associates, Physicians, Volunteers and Community Partners.

Our Vision

We will be the community’s premier healthcare system, recognized for exceptional patient-centered care, quality services and respect for those we serve.

Our Values

We are called to serve our Patients, Associates, Physicians and Community with: dedication, reverence, wisdom, integrity, creativity and service. Inspired by the healing ministry of Jesus Christ we are dedicated to delivering exceptional patient-centered care. We are called to:

Dedication – Affirming the hope and joy of our ministry

Reverence – Respect and compassion for the dignity and diversity of life

Wisdom – Integrating excellence and stewardship

Integrity – Inspiring trust through personal leadership at all levels

Service to the poor – Generosity of spirit, especially for the persons most in need

Creativity – Courageous innovation

Our Code of Conduct

Take a moment to read our Code of Conduct.


Administration Team


Zachary K. Dietze, Chief Executive Officer

Zach Dietze joined Seton Medical Center Harker Heights in August 2012 as Assistant Administrator and was promoted to CEO in December 2016 . Prior to joining SMCHH and Ardent Health Services, Dietze was the Program Manager for ACO Development with the Harris Health System in Houston, Texas. In this role he was responsible for leading the development and implementation of the Harris Health’s Accountable Care Organization Pilot. Prior to this role, he completed his administrative residency with the Harris Health System, one of the country’s largest public health systems. Dietze was raised in Round Rock, Texas and received his Bachelors of Arts in Government from the University of Texas at Austin, and his Master of Science in Healthcare Administration from Trinity University in San Antonio, Texas. He is a fellow of the American College of HealthCare Executives (FACHE).

George Fayer, Chief Financial Officer

George Fayer  joined  Seton Medical Center in 2015, prior to being the interim CFO. Fayer has been with LHP for nearly four years working on acquisitions and divestitures and other projects. Prior to joining LHP Hospital he was the Senior VP/CFO for Wuesthoff Health System in Rockledge FL.  In addition he was CFO with HCA at JFK Medical Center, and  CFO at Palmetto General Hospital in Miami FL He graduated from University of South Florida with a BA in Accounting, and received an MBA from the University of Tampa.

Calee Travis, Chief Nursing Officer

Calee Travis, RN, BSN, MBA, NEA-BC joined Seton Medical Center as Chief Nursing Officer in Sept. 2018 and has been a nurse for over 35 years. After graduating from Texas Woman’s University with a Bachelors in Nursing, she began her career as a Labor & Delivery nurse at Parkland Memorial Hospital in Dallas, Texas. From there she started what would be her specialty as an Operating Room nurse. Moving on to further her career she was the Director of Surgical Services at Medical City Dallas and their sister facility Medical City McKinney with HCA. It was at McKinney that she began her first time Chief Nursing Job. Her experiences took her to Memorial Hermann at the Texas Medical Center in Houston, Tx., where she was the Chief of Perioperative Services and to being a CNO at Baylor Scott & White Centennial in Frisco Texas.

Mark Engler, VP of Physician Services

Mark Engler joined SMCHH and Wellstone Health Partners as VP of Physician Services in January 2020. Mark has nearly three decades of experience in medical group management and operations. For the last seven years Mark has held physician services roles with LHP Hospital Group and Ardent Health Services in several markets including Sherman, TX, Panama City, FL and most recently with UT Health East Texas in Tyler, TX where he served as COO and Senior Contracts Administrator for the 350+ physician UT Health East Texas Physician Group. Prior to LHP and Ardent Mark held medical group management roles in the DFW area. Mark received is BBA from UNT in Denton, TX.


Our Quality

Joint Commission Accredited 

We are dedicated to continuously improving the safety and quality of care we provide while maintaining a high level of quality and compliance with the latest standards.

Advanced Primary Stroke Center

We provide the next generation of stroke care and have met and will continue to maintain The Joint Commission’s high standards in providing stroke care.

Accredited Chest Pain Center

We are dedicated to providing exceptional cardiac care. As an accredited facility we use the newest methods and best practices in heart care to ensure that our patients receive the right care at the right time.