Dr. Thomas D. Horst


Thomas D. Horst, MD, of South Miami OB/GYN Associates in South Miami, Florida, is committed to providing quality, patient-focused, care to the women of South Miami and its surrounding communities. Dr. Horst was born and raised in Baltimore, Maryland. He attended Gilman School where he excelled in math and sciences and played varsity football, basketball, lacrosse, and golf. He then headed to North Carolina and graduated with a degree in mathematics from Duke University.

Before beginning his medical career, Dr. Horst returned to Gilman School where he was a mathematics teacher and coach for the football, basketball and lacrosse teams. He is proud to have won the Edward K. Dunn Award for excellence in teaching. His team won the junior varsity A conference football championship the same year. Dr. Horst cherishes his experience as a teacher and coach.

He graduated from the University Of Maryland School Of Medicine and came to the University of Miami for residency training. As a chief resident, he received the John Ford Award for outstanding performance in gynecologic surgery.

Dr. Horst is board certified and is a fellow of the American College of Obstetrics & Gynecology. He has been on staff at South Miami Hospital since 2003 and a part of South Miami OB/GYN Associates since 2005. He is dedicated to his patients and enjoys spending quality time with his wife and 2 young children.


• Duke University North Carolina
• University Of Maryland School Of Medicine


South Miami Hospital


English and Spanish



“Dr. Chi was amazing- she coached me through the labor. A true professional with the experience every new mommy needs. I will continue to see her for my future appointments.”

Denay Z.

“Everyone is so nice at the practise. I have been going there for approximately 10 years now and even though I live a good 45 minutes away, I wouldn’t change doctors. Dr. Chi is amazing! She delivered both my sons and I had a great experience with her as well as with the other doctors at the practise.”

Beatrice R.

“Dr. Horst is INCREDIBLE! His attention to detail, bedside manner and amazing memory are just a few of his top qualities. I can’t properly express my absolute gratitude to have him as my Dr.”

Rosie B.

Make An Appointment

Have a question about our practice or want to schedule an appointment? Call us and speak with a member of our team.

Request an Appointment