TEBRA - Key Persons

Dr. Martin is a native Texan who graduated from the University of Texas at Austin in 1991, followed by a degree in medicine from The University of Texas Medical Branch Galveston in 1998. He completed a General Surgery internship and Diagnostic Radiology residency at Loma Linda University, serving as Chief Resident in 2003. He completed additional training with a fellowship year at the University of California San Diego in 2004. Dr. Martin was in private practice in Longview, Texas for 10 years and has performed over 5,000 Procedures in both inpatient and outpatient environments. He served as Radiology Department Director as well as the Radiology/Pathology/Emergency Medicine Section Chair during his time there. Dr. Martin has a broad background in clinical interventional radiology, with experience in all vascular procedures. In addition, he has particular interest and experience in critical limb ischemia and limb salvage procedures as a core effort in amputation prevention.

Dr. Stephens is a native Texan who graduated from Texas A&M University in 1999, followed by a degree in medicine from The University of Texas at Houston in 2003. He remained at UT Houston completing a residency in internal medicine in 2006, a chief resident year in 2007, and a fellowship in nephrology in 2009. He then served as an assistant professor in nephrology at the University of Texas at Houston until 2013 when he came to join Humble Vascular Access Center (HVAC). Dr. Stephens Co-Founded Humble Vascular Surgical Center (HVSC), He is the Assistant Medical Director of HVAC and HVSC and to date has performed over 10,000 Procedures and has helped training several Interventional Nephrologists. Dr. Stephens has a broad background in clinical and interventional nephrology, with experience in all vascular procedures. In addition to his expertise in access maintenance, he has a particular interest in peritoneal dialysis catheter placement and management.

Dr. Nguyen was born and raised in Houston, TX. He received his bachelors degree from Houston Baptist University in 2009 and his medical degree from A.T. Still University in Phoenix, Arizona in 2013. He completed his internal medicine residency in 2016 from Broward Health Medical Center in Fort Lauderdale, Florida. Dr. Nguyen then returned home to Houston and completed his nephrology fellowship with University of Texas Houston Medical School in 2018. Dr. Nguyen joined the Humble Vascular Access Center team in 2018 after receiving extensive training in Vascular access care during which he performed over 1000 procedure. Dr. Nguyen is very excited to be part of HVAC/HVSC family and to serve patients and all of their vascular access needs.

Dr. Barakat received his initial training at Damascus University and graduated with an MD degree in 2002. He completed Internal Medicine residency at the University of Texas at Houston Medical School (UTH) in 2006, and completed his Nephrology fellowship at UTH in 2008, subsequently he was trained in Interventional Nephrology and became certified by the American Society of Diagnostic and Interventional Nephrology. Dr. Barakat Founded Humble Vasuclar Access Center (HVAC) and Humble Vascular Surgical Center (HVSC), He is the Medical Director of HVAC and HVSC and to date has performed over 15,000 procedures and has helped training several Interventional Nephrologists. He is specialized in all aspects of hemodialysis vascular access including AV fistula maturation, Central Venous Occlusions repair and Interventional Access Creation (WaveLinq and Ellipsys).