Current Fellows

First Year

Dr. Yousef Shaddood

Yousef Shaddood

Yousef was born in Damascus, Syria, where he also finished medical school at Damascus University in 1995. He completed internal medicine in 1998 followed by one year of adult cardiology in 1999. Dr. Shaddood worked in Kuwait from 2000-2007 and completed his pediatric residency from 2007-2010. Prior to joining UTHSC in 2014, Yousef worked as a hospitalist. His major hobby is drawing, especially comic arts. He also likes 'inventing' new cooking recipes based on different international cuisines.


Dr. Sushitha Surendran

Sushitha Surendran

Sushitha completed her medical school training at the Medical College Thiruvananthapuram in India. She has vast medical volunteer experience in the U.S. and India, and also worked as both a Medical Officer and Medical Coordinator in the latter. Also while in India, this commissioned honorary citizen of Hyden, Ky was awarded “Best Paper” in the category of non-communicable diseases at the National Conference on Medical Students’ Research.  Dr. Surendran passed the USMLE I, II, and III, scoring the highest possible two-digit score. Sushitha joined UTHSC in 2014 after her residency at Newark Beth Israel Hospital. Her hobbies include reading, cooking and chess.

Second Year

Mario Briceno-Medina, M.D.

Dr. Briceno started his pediatric cardiology fellowship after graduating in pediatrics at the University of Tennessee/Le Bonheur Children’s hospital program. He received his M.D in his home country Venezuela then moved to Memphis with his lovely wife Marianna. He is interested in cardiac hemodynamics and electrophysiology. Besides spending time learning about the heart, he enjoys outdoor sports and taking Isabella, his daughter, to the zoo and other parks. He is still trying to kayak in the Mississippi river.


Michael Perez, M.D.

Dr. Perez was born and raised in Dallas, Texas. He received his undergraduate degree at Southern Methodist University and later attended the University of Texas Medical School at Houston where he met his fiancée, Rana Khaznadar. They moved to Memphis for pediatric residency where they enjoy exploring the local cuisine and spending time with their two dogs. He is currently in his first year of fellowship and is interested in non-invasive Cardiology.

Third Year

Saradha Subramanian, M.D.

Dr. Subramanian obtained her medical degree from Drexel University College of Medicine. She then completed her pediatric residency at Cohen Children’s Medical Center in New York.


John Alexander, M.D.

Dr. Alexander came to our program after completing a pediatric residency at the Milton S. Hershey Penn State Children’s Hospital in Hershey Pennsylvania. He completed his medical school training at the Edward Via Virginia College of Osteopathic Medicine in Blacksburg Virginia. His current research interests are focused on the optimization of pain and sedation in the postoperative cardiac patient and in the analysis of factors related to vascular access in the catheterization lab and how these affect patient outcomes. In addition he enjoys spending time with his family, playing soccer, and cooking.

Division of Pediatric Cardiology

Children's Foundation
Research Center
Heart Institute, 3rd Floor
50 N. Dunlap Street
Memphis, TN 38103
Phone: 901-287-6380
Fax: 901-287-5970

Program Coordinator:
Kathy Lofton
Email: klofton1@uthsc.edu