Our Team


Physicians

Talley F. Culclasure, Jr., MD

Dr. Talley Culclasure completed his undergraduate education at The Citadel Military College of South Carolina with a B.S. in Biology in 1984. After the completion of his undergraduate training, Dr. Culclasure pursued his graduate training at the Medical University of South Carolina in Charleston, S.C. and obtained his M.D. in 1988. He completed both a Categorical Medicine Internship (1988-1989) and an Internal Medicine Residency (1989-1991) at Fitzsimons Army Medical Center in Aurora, Co. Following his internship and residency, Dr. Culclasure completed his Cardiology Fellowship at Fitzsimons Army Medical Center from 1993-1996. In addition, he completed his Interventional Cardiology Fellowship at the University of Colorado Health Sciences Center in Denver, Colorado from 1995-1996.

During his medical career, Dr. Culclasure has held the following positions of Chief Resident of the Department of Medicine at Fitzsimons Army Medical Center, Internist at the Department of Medicine at Moncrief Army Community Hospital at Fort Jackson, S.C., and Chief of Cardiology and Directorate of Medicine at Dwight D Eisenhower Army Medical Center in Augusta, Georgia. He also holds the following professional appointments of Associate Professor of Medicine at Mercer University School of Medicine in Macon, Georgia and also Assistant Professor of Medicine at Emory University in Atlanta, Georgia. Dr. Culclasure is Board Certified with the American Board of Internal Medicine and Cardiovascular Medicine. Other professional associations include Fellow of the American College of Physicians and Fellow of the American College of Cardiology. He is married with three children and enjoys gardening, outdoor sports, raising homing pigeons and honeybees, and traveling with his family.

Dr. Justin McCullough

Dr. Justin McCullough was born and raised in Statesboro, GA. After graduating from Statesboro High School, he attended Shorter College in Rome, GA. He graduated magna cum laude from Shorter College with a B.S. in Biology in 2003. Dr. McCullough then attended Mercer University School of Medicine in Macon, GA, where he earned his Doctor of Medicine degree in 2009. After graduating from medical school, Dr. McCullough completed his Internal Medicine residency at the Medical Center of Central Georgia from 2009-2012. Dr. McCullough completed his Cardiology Fellowship at the University of Tennessee Health Science Center in Memphis, TN from 2012-2015. He is board certified in Internal Medicine and Cardiovascular Medicine.

Dr. McCullough currently serves as an Clinical Assistant Professor of Internal Medicine/Cardiology at Mercer University School of Medicine. He enjoys working with medical students in the office and caring for patients jointly with residents in the hospital. He is married and has two children. His wife works as a psychiatrist at the VA Outpatient Clinic in Macon, GA. In his free time, Dr. McCullough enjoys spending time outdoors as well as playing with his children.


William “Bill” D. Knopf, M.D.

Dr. Bill Knopf was born and raised in Atlanta, GA. He is a Phi Beta Kappa of Emory University and a cum laude graduate of Emory University School of Medicine. After graduating from medical school, Dr. Knopf completed his Internal Medicine residency at Parkland Hospital in Dallas. He completed his Cardiology Fellowship at Emory Hospital in Atlanta, GA. He then joined Emory’s faculty as Assistant Professor of Medicine and became Emory’s first Medical Director of their Heart Transplant program. Dr. Knopf is board certified in internal medicine, cardiovascular disease and interventional cardiology.

Dr. Knopf is nationally recognized for his leadership in interventional cardiology. He has participated in more than 100 research studies. He also founded the Piedmont Heart Institute and served as Chief Operating Officer from 2007-2011. He then became the Chief Operating Officer and Chief Medical Operations Officer of Piedmont Atlanta Hospital from 2011-2013. In 2015, Dr. Knopf moved to Billings, Montana to accept the position as Chief of the Heart and Vascular Center of St. Vincent’s Healthcare.

Dr. Knopf is very compassionate about the care of his patients! He is married to Robin and they have 5 children, 8 grandchildren and 2 dogs. In their free time, Bill and Robin love to enjoy friends and family. They also love to take time for traveling, outdoor activities and attending cultural events.

Physician Assistants

Rallie "Rooster" Cogburn, PA-C

Rallie Cogburn (Rooster) finished the Physician Assistant (PA) program at The Medical College of Georgia in 2000. Rooster regularly lectures at various conferences regarding PA topics. Rooster is the past president of the Georgia Association of Physician Assistants and is a charter member and on board of governors of Accreditation Council for Clinical Lipidology, a national certifying organization for non-Physician practitioners in the field of cholesterol.