JPS values communication and transparency. As a tax-supported organization we are proud to provide information about our board of managers, executive staff and items discussed in our public meetings on our website.
To view the JPS Health Network Organizational Chart, click here.

Karen Duncan, MD, MBA, President, Chief Executive Officer
Karen Duncan, MD is a board certified pediatrician with medical and executive leadership experience. Dr. Duncan has extensive experience working in large public health academic centers and has held executive leadership positions at Atlanta's Grady Memorial Hospital and Chicago's Cook County Health and Hospitals System.
Dr. Duncan came to JPS from Health Management Associates, a healthcare consulting firm where as a Principal, she consulted for large publicly funded hospitals systems, government entities and managed care plans.
Dr. Duncan received an MD from Emory University School of Medicine. She completed a Bachelor of Arts degree in biochemistry at Smith College and completed the Executive MBA Program at Georgia State University.

Dorothy DeBose
Chair

Roger Fisher
Vice Chair

Amanda Arizola
Secretary

Tim Davis

Ralph Waldo Emerson, Jr.

Margaret Holland, MD

D.T. Nguyen

Trent Petty

Steven Simmons, DO

Blake Woodard

Zim Zimmerman
Physicians elect medical staff officers every two years. Officers provide feedback to administration, address concerns regarding patient care and quality among clinical staff and provide accountability to the board regarding patient care.

Janet Miles, MD
Dr. Miles will serve as the elected President of the Medical Staff from 2022 – 2023. She formerly served as the Vice President of Medical Staff and is the current Medical Director of the Department of Pathology. Dr. Miles completed her residency and fellowship training at the Cleveland Clinic Foundation and is board certified in Anatomic and Clinician Pathology and Neuropathology. She graduated from the six year combined BA/MD program at the University of Kansas City – Missouri. Prior to joining JPS Health Network, Dr. Miles served in numerous administrative roles including Chief Medical Officer of Physicians Reference Laboratory in Kansas City, KS and Medical Director and Chair at several large hospitals in Missouri and Florida. She was named Physician of the Year at JPS in 2017, a North Texas COVID Hero by the DFW Hospital Council in 2021, and a Fort Worth Top Doctor in 2017, 2018, 2019, and 2022. Dr. Miles served as the Pathology Residency Program Director at the University of Wisconsin Hospitals & Clinics, and has authored over 30 publications. When not busy serving JPS, Dr. Miles enjoys her RV, hiking, and spending time with her husband, two daughters, and grandson.