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Dr. Thomas Callahan has been a part of the St. George medical community since 1980. He graduated from Brigham Young University in 1971 with his bachelor degree and then began his medical studies at the University of Utah where he graduated in 1975. He became Board Certified in Family Medicine after completing a three year residency at St. Josephs Hospital in Phoenix, AZ. He came back home in 1980 and opened his own practice.
Dr. Callahan enjoys caring for patients of all ages and the relationships he has built over the past 35 years. Dr. Callahan enjoys being on the lake, on the golf course, and spending time with his wife and seven kids and 27 grand kids.
Dr. Doug Callahan is a native of St. George and has been a major part of the Callahan Clinic since 2003. He graduated from Des Moines University School of Osteopathic Medicine in 2000 and became Board Certified in Family Medicine after completing a three year residency at St. Josephs Hospital in Phoenix, AZ.
Dr. Callahan enjoys caring for patients of all ages. He is also fluent in Japanese. Dr. Callahan enjoys spending time with his wife and three kids as well as golf, tennis, and water sports.
Dr. Thomas “Colby” Callahan was born and raised in St. George. After receiving his undergraduate degree from Southern Utah University, Dr. Colby continued his education at Edward Via College of Osteopathic Medicine graduating in 2013. He followed in the footsteps of his father and brother by completing a three-year Family Medicine Residency at St. Joseph’s Hospital in Phoenix, Arizona. Dr. Colby specializes in Family Medicine and is board-certified with the American Board of Family Medicine. Dr. Colby loves being a physician and enjoys taking care of the whole family; including pediatrics, adolescents and women’s and men’s health.
Dr. Colby is committed to helping his patients achieve optimal health and maximize their quality of life. He strives to offer compassionate care along with proactively working with each patient in preventive health measures.
In his free time, Dr. Colby enjoys woodworking, boating and college football. Above all else, Dr. Colby loves spending time with his wife and four children. Dr. Colby served a two-year LDS mission in Paraguay and speaks fluent Spanish.
Amanda is a Board Certified Nurse Practitioner credentialed by the American Nurses Credentialing Center. She graduated in 2009 with her Masters of Science degree from the University of Utah, graduating with honors. Amanda received her undergraduate degree through Southern Utah University.
She has a strong medical background, with over 18 years experience as a practitioner and as a registered nurse. Early in her career she worked in acute nursing services, geriatric care, women’s health, and psychiatric nursing.
Amanda believes patient care involves a holistic approach, with focus on mental and emotional care equally to physical care. She focuses on disease prevention and strives to emphasize the benefits that healthy choices and an active lifestyle have in optimizing overall health. She actively listens and educates her patients and families to help them achieve their healthcare goals.
Amanda enjoys in her free time being physically active and spending time with her husband and two boys.
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