Our Leadership Team

Working together, we’re able to improve efficiency while providing
seamless access to quality care and innovative strategies at the
same time to advance a better system of care.


Together, our two organizations are committed to improving the health of the patients and communities we serve by providing accessible, affordable, highest-quality patient-centered care. SWHR is dedicated to value-based, comprehensive, coordinated care.

Daniel K. Podolsky, M.D.
Co-Chair, Southwestern Health Resources
President, UT Southwestern Medical Center

The integrated network benefits consumers and caregivers, without changing the relationship patients have with their physicians. What has changed with our collaboration is a member experience focused on providing better coordinated care and more access to specialty services and clinical trials.

Barclay Berdan, FACHE
Co-Chair, Southwestern Health Resources
Chief Executive Officer, Texas Health Resources

More of Our Viewpoints

Frequently Asked Questions

What does this network mean for North Texans?
What are patient and consumer benefits?
What are the benefits for doctors and providers?
What is the relationship between UT Southwestern and Texas Health Resources?


Meet Southwestern Health’s Senior Executives
Barclay Berdan, FACHE
Co-Chair, Southwestern Health Resources
CEO, Texas Health Resources

Barclay E. Berdan, FACHE, is Chief Executive Officer of Texas Health Resources, one of the largest faith-based, non-profit health systems in the United States and the largest in North Texas in terms of patients served. The health system includes Texas Health Physicians Group and hospitals under the banners of Texas Health Presbyterian, Texas Health Arlington Memorial, Texas Health Harris Methodist and Texas Health Huguley. The health system also has 29 acute-care, transitional, rehabilitation and short-stay hospital locations that are owned, operated, joint-ventured, or affiliated with Texas Health Resources.

Daniel K. Podolsky, M.D.
Co-Chair, Southwestern Health Resources
President, UT Southwestern Medical Center

As President of UT Southwestern Medical Center, Daniel K. Podolsky, M.D., a nationally prominent physician-scientist and academic leader, oversees an academic medical center dedicated to excellence and innovation in patient care, education, and research. UT Southwestern faculty provide care to more than 100,000 hospitalized patients and approximately 2.2 million outpatient visits annually, as well as educate and train approximately 3,600 medical, graduate, and health professions students, residents, and postdoctoral fellows each year. UT Southwestern receives more than $425 million per year in external funding for faculty research. The Medical Center has more than 16,400 employees and an annual operating budget of nearly $3 billion. In addition to the flagship William P. Clements Jr. University Hospital, the UT Southwestern University Health System includes Zale Lipshy University Hospital and outpatient facilities on campus and throughout North Texas.

Meet Our Senior Executive Officers
Mack Mitchell, M.D.
Chief Medical Officer, SWHR Physician Network
Vice President for Medical Affairs, UT Southwestern
Medical Center

Mack Mitchell, M.D., serves as the Chief Medical Officer for Southwestern Health’s physician network. His responsibilities include overseeing the clinical development, planning, and management of the SWHR Physician Network, along with advancing population health strategies. With UT Southwestern Medical Center, Dr. Mitchell serves as Vice President for Medical Affairs.

John J. Warner, M.D.
Senior Executive Officer, SWHR Joint Operating Company
Executive Vice President for Health System Affairs, UT Southwestern Medical Center

John J. Warner, M.D., is the senior leader responsible for the development, planning, and operations for the SWHR Joint Operating Company (JOC), which includes the network’s three Dallas hospitals – William P. Clements Jr. University Hospital, Zale Lipshy University Hospital, Texas Health Presbyterian Hospital Dallas – and associated joint ventures. He is responsible for the hospitals’ quality initiatives, operational programs, and overall fiscal performance. Duties include achieving safety, quality, and service goals, with a unified approach to an outcomes strategy across the Dallas Hospitals JOC that is well coordinated with UT Southwestern and Texas Health quality efforts. Dr. Warner also serves as CEO of UT Southwestern University Hospitals.

Marinan Williams, M.S., FACHE
Senior Executive Officer, SWHR Market and Payor Relations

Marinan Williams, M.S., provides leadership and oversight in developing strategic relationships and informing health care purchasers about the benefits of blending the strengths of Texas Health and UT Southwestern. She is responsible for developing strategic relationships with employers, employee benefits consultants, and government agencies, and managing contractual relationships with payers and purchasers of health care contracts. With strong experience in both the payor and provider domains, as well as with integrated delivery models of care, she brings a unique perspective to the role. She holds a Master of Science in Healthcare Administration from Texas Woman’s University and a Bachelor of Science in Microbiology/Chemistry from Texas Tech University.