Dr. Nathan J. Lo

Dr. Khurram Ahmad worked as a Interventional Cardiologist at Beaumont and Henry Ford Systems in Michigan for 7 years before moving to Texas. He also served as the teaching faculty for the Oakwood Hospital cardiovascular Fellowship. He earned his medical degree with honors from King Edward Medical College in Lahore, Pakistan before coming to the United States in 2004. He is a fellowship-trained interventional cardiologist with certification in internal medicine, nuclear cardiology, cardiovascular disease, echocardiography, cardiac CT, and interventional cardiology. Dr. Ahmad's areas of special interest include coronary interventions, congestive heart failure, peripheral vascular disease, and vascular interpretations. In addition to his numerous board-certifications, he also has advanced training as a Registered Physician in Vascular Interpretation (RPVI).Dr. Ahmad completed his internal medicine residency at the University of Tennessee Health Science Center in Memphis, where he served as chief resident during his final year of training and as chief cardiology fellow while pursuing his fellowship training. Dr. Ahmad completed an additional interventional cardiology fellowship at Michigan State University. He is a Fellow of the American College of Cardiology. Dr. Ahmad relocated to North Texas in 2019. Dr. Ahmad is rated as a Distinguished provider by MediFind in the treatment of Familial Combined Hyperlipidemia. His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, and Pediatric Myocarditis.

Justin Martin, M.D., is originally from Wichita Falls. He obtained his undergraduate degree from the University of Texas at Austin, and his medical degree from the University of Texas Medical Branch at Galveston, where he was a member of Alpha Omega Alpha Honor Society and graduated as the class Valedictorian. He completed his medical internship and residency at Johns Hopkins Hospital in Baltimore, and his general cardiology fellowship at UT Southwestern Medical Center in Dallas.Martin subsequently moved to Kansas City, where he received specialized training in percutaneous coronary and peripheral vascular intervention (balloon and stent angioplasty to open blocked arteries in the heart, legs, kidneys and neck) at the Mid America Heart Institute.Martin is board-certified in internal medicine, cardiovascular disease, and interventional cardiology. He is also a Fellow of the American College of Cardiology. His professional interests are related to the non-invasive and invasive management of peripheral arterial and coronary artery disease.Martin is married and has two children. He enjoys running, cooking and spending time with his family. Dr. Martin is rated as a Distinguished provider by MediFind in the treatment of Familial Combined Hyperlipidemia. His top areas of expertise are Apoplexy, Heart Attack, Necrosis, Aortic Regurgitation, and Atherectomy.

Robert Brockie is a Cardiologist and an Interventional Cardiologist in Sunnyvale, Texas. Dr. Brockie has been practicing medicine for over 44 years and is rated as a Distinguished provider by MediFind in the treatment of Familial Combined Hyperlipidemia. His top areas of expertise are Atrial Fibrillation, Necrosis, Heart Attack, Aortic Regurgitation, and Pacemaker Implantation.