Meet the Owensboro Health Family Medicine Program Faculty - Owensboro Health

Meet the Family Medicine Program Faculty

Dr. Jon SivoravongJon C. Sivoravong, DO, FAAFP

Director, Family Medicine Residency Program

Dr. Jon C. Sivoravong is a graduate of the University of Texas College of Osteopathic Medicine. He completed his family medicine residency at the University of Texas Medical Branch at Galveston. Dr. Sivoravong previously helped launch and served as medical director of the University of North Texas Fort Worth Family Medicine Residency Program for more than 20 years.

Dr. Darby ColeDarby Cole, MD 

Family Medicine

Dr. Darby Cole is a Family Medicine physician with the U of L / Owensboro Health Family Medicine Residency program. Most recently, he practiced with Owensboro Health Medical Group in Beaver Dam, Kentucky. He earned his medical degree at the University of Kentucky College of Medicine and completed an Internship and Residency at the Trover Foundation in Madisonville, Kentucky.

Dr. Stephanie HaydenStephanie Hayden, MD


Dr. Stephanie Hayden is a native of Covington, Kentucky, and earned her undergraduate degree in biology at Thomas More College in Northern Kentucky. She then earned her medical degree at the University of Kentucky, followed by residency and internship through the University of Tennessee Health Science Center at Le Bonheur Children’s Hospital in Memphis. Dr. Hayden is also board-certified by the American Board of Pediatrics.

Shirl Nafziger-LyneShirl Nafziger-Lyne, MSW, LCSW

Behavioral Services

Shirl Nafziger-Lyne received her bachelor's degree in Social Work from Millersville University and her master's degree in Social Work from Widener University. She is a licensed clinical social worker in the state of Kentucky and Indiana.

She has advanced training in trauma and clinical supervision. She is passionate about helping individuals discover freedom and healing.

Dr. Jody MitchellJody Mitchell, MD

Family Medicine, Sports Medicine

Dr. Jody Mitchell, a native of Owensboro, earned his medical degree at the University of Kentucky, where he also completed an internship, family medicine residency, and primary care sports medicine fellowship. Dr. Mitchell is board-certified in family medicine with a certificate of added qualification in sports medicine.

Dr. Marshall Eddie PruntyDr. Marshall “Eddie” Prunty


Dr. Eddie Prunty earned his medical degree at the University of Kentucky College of Medicine and completed his Family Medicine residency at the Medical Center in Columbus, Georgia.

He is board-certified in Family Medicine and most recently cared for patients as a hospitalist at Owensboro Health Muhlenberg Community Hospital. Dr. Prunty will work with our Residents during their inpatient rotations and in caring for Family Medicine Residency Clinic patients who are admitted to Owensboro Health Regional Hospital.

Dr. Gary WahlDr. Gary Wahl

Family Medicine

Dr. Wahl earned his medical degree from University of Kentucky, Lexington, and completed his residency and internship at St. Mary's Medical Center, Evansville. He is board-certified in Family Medicine. Dr. Wahl has been caring for families in Owensboro since 1984 and most recently practiced with Owensboro Health Medical Group Family Medicine on Triplett.


Greg Strahan

Greg Strahan

CEO & President, Owensboro Health

Dr. DuFrayne

Francis DuFrayne, MD

Chief Medical Officer, Owensboro Health

Dr. Brent Wright

Brent Wright, MD

Associate Dean for Rural Health Innovation
University of Louisville School of Medicine

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About Owensboro Health

Owensboro Health Regional Hospital

Owensboro Health is a nonprofit health system with a mission to heal the sick and to improve the health of the communities it serves in Kentucky and Indiana. The system includes Owensboro Health Regional Hospital, nationally recognized for design, architecture and engineering; Owensboro Health Muhlenberg Community Hospital; the Owensboro Health Medical Group comprised of over 200 providers at more than 20 locations; three outpatient Healthplex facilities, a certified medical fitness facility, the Healthpark; a surgical weight loss center and program, and the Mitchell Memorial Cancer Center.

On average each year, we have 16,000 inpatient admissions, deliver 2,000 babies and provide the region’s only Level III NICU. Owensboro Health physicians perform nearly 24,000 surgical procedures, including nearly 200 open-heart surgeries. Our physicians and staff have 70,000 Emergency Department visits, more than a million outpatient visits annually. Visit our home page for more information.

About the University of Louisville

University of Louisville logo

The University of Louisville School of Medicine in Louisville, Kentucky, opened as the Louisville Medical Institute in 1837. It is one of the oldest medical schools in North America and the 9th oldest in the United States.

The School of Medicine has built a reputation as a community of scholars who are dedicated to helping the next generation of physicians translate new discoveries and leading-edge knowledge into excellent, compassionate care that enhances and preserves quality of life. The School of Medicine is home to a state-of-the-art facility where pioneering research faculty lead the way with innovative medical research. Notable alumni include Samuel D. Gross, the patriarch of America’s trauma surgeons, and Abraham Flexner, whose work reshaped medical education in the United States.

The Graduate Medical Education Program is accredited by the Accreditation Council for Graduate Medical Education (ACGME).

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Owensboro Health / University of Louisville Family Medicine Residency
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Owensboro, KY 42303
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