Sr. Mary Diana Dreger, OP

Sister Mary Diana Dreger, OP, is a Dominican Sister of the Congregation of Saint Cecilia in Nashville, Tennessee. She has been practicing internal medicine since 2007 and currently serves at Saint Martin Medical Care. Sister Dreger has a rich background in education, having taught at the high school and college levels before discerning her vocation to religious life. She is also an Adjunct Assistant Professor at Aquinas College and has been involved in administration at Saint Cecilia Academy.

Sister Dreger is a member of the Catholic Medical Association (CMA) and has served on its Board of Directors. She holds a Master of Arts in moral theology and has been involved in various educational and medical capacities, including serving as a primary care physician and an Assistant Clinical Professor of Medicine. She is a member of the national CMA speaker’s bureau and has presented hundreds of talks across the country and in Canada on topics related to education, medicine, faith, and ethics to high school, college, parish, clergy, and medical audiences.

Read her Curriculum Vitae from the CMA

Events with Sr. Mary Diana Dreger, OP

Catholic Physicians Retreat
March 19 - 22, 2026

The Word of the Word: Intimacy with Jesus Through His Gospels A Retreat for Catholic Medical Professionals Mar 20-22, 2026 for Men and Women Mar 19-20 addition for Women with Sister Mary Diana, OP The 3-day retreat is open to men and women, starting Friday March 20 with a 7pm Mass and concludes Sunday March 22 with Mass and lunch. The 4-day retreat starts Thursday, March 19 with a 7pm Mass, the Thursday-Friday portion is for women only. As both a sister and a medical doctor, Dominican Sister Mary Diana Dreger embodies how caring for the sick is a core…