David E. Montgomery MD, PhD, received his medical degree from Northwestern University Feinberg School of Medicine, where he continued his medical training including an internship and residency in internal medicine as well as clinical and advanced fellowships in cardiology. Dr. Montgomery also holds a PhD in physiology from the University of Illinois at Chicago, College of Medicine. Prior to joining Piedmont, Dr. Montgomery served as Adjunct Staff at the Resurrection Medical Center in Chicago, Illinois. He is board-certified in both cardiology and internal medicine. His clinical focus is heart and vascular disease prevention. Some of his special clinical interests include preventing and managing cardiovascular disease in the young adult, the athlete and obese populations. Dr. Montgomery has published in a range of medical and scientific journals and his patient care and clinical work as a resident won him induction into the prestigious Alpha Omega Alpha Honor Medical Society. He also holds memberships in a number of organizations, including the American Heart Association and the American College of Cardiology. Dr. Montgomery is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Atherosclerosis, High Cholesterol, Angina, Coronary Heart Disease, and Pacemaker Implantation.

Dr. Simpson completed his undergraduate training and earned his medical degree summa cum laude from Emory University in Atlanta. He served a general surgery internship and an orthopedic surgery residency with Emory University Affiliated Hospitals. He then completed an internship and residency in internal medicine at the Brigham and Women's Hospital of Harvard University in Boston. Dr. Simpson then returned to Atlanta to complete a cardiology fellowship with Emory University Affiliated Hospitals. He is board certified as a Diplomat of the American Board of Internal Medicine and National Board of Medical Examiners. He also sat for the Cardiovascular Board Exam and is certified in both basic and advanced cardiac life support (BCLS and ACLS). He is currently a Fellow of the American College of Cardiology. Dr. Simpson is a member of the Alpha Omega Alpha National Medical Honor Society. He currently is in practice at the Roswell location of the Piedmont Heart Institute Physicians. Dr. Simpson is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Atrial Fibrillation, Atherosclerosis, Angina, and Coronary Heart Disease.

Dr. Sun earned his medical degree from Hunan Medical University in China and completed his Internal Medicine residency at University of Massachusetts Medical Center, Worcester, MA. He completed his fellowship in Cardiology at Mid America Heart Institute/University of Missouri Medical Center, Kansas City, Missouri. He is board certified in Cardiovascular Disease.Dr. Sun has been practicing medicine/cardiology for 20 years. Prior to joining Piedmont, Dr. Sun was a medical staff member at Division of Cardiology, Johns Hopkins School of Medicine and attending cardiologist at Johns Hopkins Bayview Medical Center, Baltimore, Maryland.Dr. Sun specializes in cardiovascular diseases prevention and treatment. Dr. Sun has special interests in congestive heart failure, and cardiac imaging.In his spare time, Dr. Sun enjoys spending time with his family and friends. He enjoys hiking, gardening, international cuisines, and opera. Dr. Sun is accepting new patients and welcomes most major insurance plans. Dr. Sun is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Pulmonary Edema, Heart Attack, Heart Failure, and Angina.

Dr. Lall received her bachelor's degree in biology at Youngstown State University followed by a medical degree from the Georgia campus of Philadelphia College of Osteopathic Medicine. She then completed her internal medicine residency at Riverside Methodist Hospital in Columbus, OH, her cardiology fellowship at Marshall University in WV, and further pursued and completed an advanced echocardiography/nuclear cardiology fellowship at New York Presbyterian Hospital/Columbia University. She is currently board certified in Internal Medicine, Cardiology, Echocardiography, and Nuclear Cardiology.Dr. Lall's clinical interests include valvular heart disease, cardiomyopathies, coronary artery disease, and cardiac imaging. In her spare time, Dr. Lall enjoys spending time with her family, working out, and traveling.Dr. Lall is accepting new patients and welcomes most major insurance plans. Dr. Lall is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. Her top areas of expertise are Atherosclerosis, Angina, Coronary Heart Disease, and High Cholesterol.

Stephen Frohwein is a Cardiologist in Atlanta, Georgia. Dr. Frohwein has been practicing medicine for over 38 years and is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Mitral Valve Regurgitation, Coronary Heart Disease, Arrhythmias, Pacemaker Implantation, and Cardiac Ablation.

Andrew J.P. Klein, M.D., FACC, FSCAI, earned his bachelor's degree from University of Notre Dame and his medical degree from MCP Hahnemann School of Medicine in Philadelphia. He completed his residency in internal medicine at University of California San Francisco. He then completed fellowships in cardiovascular disease and interventional cardiology at University of Colorado Health Sciences and a fellowship in clinical research at the University of Wisconsin.Prior to joining Piedmont, Dr. Klein was in practice at the John Cochran VA Medical Center in St. Louis where he served as the Director of Cardiovascular Disease Research and the Director of the Endovascular Laboratory. While there, he was named for the last 3 years as one of St. Louis's Top Doctors by Saint Louis Magazine. Board certified in endovascular medicine, vascular medicine, interventional cardiology and cardiovascular diseases and internal medicine, Dr. Klein is an fellow of the American College of Cardiology (ACC) and Society for Cardiovascular Angiography and Intervention.(SCAI). An expert in complex coronary and peripheral intervention, he is a member of several SCAI committees.In his spare time, Dr. Klein enjoys spending time with family, including his spouse Christina Klein, M.D., who is a transplant physician at Piedmont, and their two beautiful children. Dr. Klein is an avid exercise fanatic having run several marathons and triathlons. He is also an outdoor enthusiast having backpacked across Joshua Tree National Park and summited Half Dome with Christina when they were residents together at UCSF. The entire Klein family are skiers and look forward to returning each year to the mountains for moguls, deep powder and glade skiing. Dr. Klein welcomes new patients and accepts most insurance plans. Dr. Klein is rated as an Advanced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Angina, Coronary Heart Disease, Atherosclerosis, Cardiac Ablation, and Heart Bypass Surgery.

Dr. Victor E. Corrigan received his undergraduate degree with summa cum laude honors from the University of Georgia. He received his medical degree from the Medical College of Georgia, where he was inducted into Alpha Omega Alpha, an honors medical society. He completed his internship,residency and fellowship in cardiology at Emory University Hospital. In 1989, Dr. Corrigan joined the one of the three legacy cardiology practices that later merged to formPiedmont Heart Institute. He is a former president of the Georgia chapter of the American College of Cardiology and Medical Director of the American Heart Association for Metro Atlanta. Dr. Corrigan is board certified in internal medicine, cardiovascular diseases and interventional cardiology and is a fellow of the American College of Cardiology. He was formerly the medical director of the heart transplant team and director of the Coronary Care Unit at Saint Joseph's Hospital of Atlanta. He is actively involved in multiple medical device studies and pharmaceutical clinical studies. Dr. Corrigan is rated as an Advanced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Coronary Heart Disease, Angina, Atherosclerosis, Heart Bypass Surgery, and Cardiac Ablation.

Dr. Charles L. Wilmer received his undergraduate degree from Amherst College in Amherst, Massachusetts. He received his medical degree from the University of Virginia School of Medicine in Charlottesville, Virginia and completed an internal medicine internship and residency and a cardiology fellowship at Emory University Affiliated Hospitals. Dr. Wilmer is board certified in internal medicine and cardiovascular disease. He is a fellow of both the American College of Cardiology and the American College of Physicians. His specialties include cardiology and interventional cardiology. Dr. Wilmer is rated as an Advanced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Coronary Heart Disease, Angina, Atherosclerosis, and Arterial Embolism.

Dr. Hoff completed his medical degree, internship, junior and senior medical residencies and fellowship at Emory University School of Medicine and affiliated hospitals in Atlanta. He received his undergraduate training at Duke University in Durham, N.C. He is a fellow of the American College of Cardiology and board certified in Internal Medicine, Cardiology and Nuclear Cardiology. His professional memberships include the Medical Association of Georgia and the Medical Association of Atlanta. Dr. Hoff currently practices in Roswell, Ga. with The Piedmont Heart Institute Physicians group. Dr. Hoff is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Atherosclerosis, Coronary Heart Disease, Angina, and Hypertension.

Nipun Patel is a primary care provider, practicing in Internal Medicine in Atlanta, Georgia. Dr. Patel has been practicing medicine for over 36 years and is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are High Cholesterol, Sitosterolemia, Macroamylasemia, and Oral Herpes.

Ijeoma Isiadinso is a Cardiologist in Atlanta, Georgia. Dr. Isiadinso has been practicing medicine for over 23 years and is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. Her top areas of expertise are Hypertension, Atherosclerosis, Glucocorticoid-Remediable Aldosteronism, Cardiac Ablation, and Pacemaker Implantation.

Arshed Quyyumi is a Cardiologist in Atlanta, Georgia. Dr. Quyyumi has been practicing medicine for over 49 years and is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Coronary Heart Disease, Atherosclerosis, Heart Attack, Bone Marrow Aspiration, and Heart Transplant.

Laurence Sperling is a Cardiologist in Atlanta, Georgia. Dr. Sperling has been practicing medicine for over 37 years and is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Coronary Heart Disease, Atherosclerosis, High Cholesterol, Heart Bypass Surgery, and Angioplasty.

Dr. Roshin Mathew received his medical degree from Louisiana State University School of Medicine in New Orleans. He then completed his internal medicine residency at the University of Rochester. Dr. Mathew achieved his fellowship in advanced cardiovascular imaging from the University of Virginia and his fellowship in cardiovascular diseases at Tulane University where he served as chief fellow. Dr. Mathew has published numerous scholarly articles in medical journals and is board certified in internal medicine and cardiovascular diseases. He also has additional certifications in echocardiography and vascular interpretation (RPVI). He is a member of the American Heart Association, the American College of Cardiology, the American Medical Association, the Society of Cardiac Magnetic Resonance and the Society of Cardiovascular Computed Tomography.Dr. Mathew treats a wide spectrum of cardiovascular disease with a special focus in treatment and prevention of ischemic heart disease. He has a special interest in coronary microvascular dysfunction and ischemic heart disease.In his spare time, Dr. Mathew enjoys traveling, biking, football, and spending time with his family.Dr. Mathew welcomes new patients and accepts most insurance plans. Dr. Mathew is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Atherosclerosis, Coronary Heart Disease, Aortic Valve Stenosis, and Angina.

Vibhav Rangarajan is a Cardiologist in Atlanta, Georgia. Dr. Rangarajan is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Endocarditis, Familial Hypertrophic Cardiomyopathy, Angina, and Coronary Heart Disease. Dr. Rangarajan is currently accepting new patients.

William Ballard is a Cardiologist in Atlanta, Georgia. Dr. Ballard is rated as an Advanced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Cardiogenic Shock, Atrial Septal Defect (ASD), Patent Foramen Ovale, Gastrostomy, and Cardiac Ablation.

David Kandzari is a Cardiologist in Atlanta, Georgia. Dr. Kandzari is rated as an Advanced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Coronary Heart Disease, Heart Attack, Hypertension, Percutaneous Coronary Intervention (PCI), and Heart Bypass Surgery.

Steven Sigman, M.D. earned his undergraduate degree from Ohio State University and his medical degree from the Medical College of Ohio. He subsequently completed a medical residency and cardiology fellowships at Thomas Jefferson University Hospital, Philadelphia and Emory respectively. Following that he served as chief resident at Grady Memorial Hospital. Prior to joining Piedmont Heart Institute in 2009, Dr. Sigman was assistant professor of medicine (cardiology) at Emory University. Dr. Sigman is currently board certified in both cardiovascular diseases and nuclear cardiology. He currently serves as the Director of Nuclear Cardiology for Piedmont Hospital and the Piedmont Heart Institute. He also serves as a cardiology consultant both in the office and at Piedmont Hospital. His interests include diagnosis and management of coronary artery disease, valvular heart disease, vascular disease, and cardiac manifestations of complex medical conditions. Dr. Sigman is a Fellow of the American College of Cardiology, and the America Society of Nuclear Cardiology. He has authored or co-authored several publications and abstracts and frequently lectures on the topic of cardiac imaging. He lives in Atlanta with his wife, Carolyn H. Sigman M.D., and his 5 children. Dr. Sigman is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Pulmonary Edema, Heart Failure, Angina, Pacemaker Implantation, and Cardiac Ablation.

Zubin Yavar, M.D., FACC is a cardiologist and cardiovascular imaging specialist. A graduate of The Ohio State University College of Medicine, he completed his internal medicine residency and cardiology fellowship at Ascension St. Vincent Hospital, Indianapolis. He has a passion for cardiac imaging as evident by his specialized training in advanced adult comprehensive echocardiography and nuclear cardiology.As a general cardiologist, Dr. Yavar is trained to treat a wide variety of cardiovascular conditions. His ability to articulate complex concepts with clarity helps engage patients in understanding their conditions.In his spare time, he enjoys spending time with family, exploring new countries, formula 1 racing, the arts, tennis and rock climbing.Dr. Yavar is accepting new patients and welcomes most major insurance plans. Dr. Yavar is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. His top areas of expertise are Heart Failure, Pulmonary Edema, Endocarditis, and Heart Failure with Preserved Ejection Fraction (HFpEF).

Jyoti Sharma, M.D., graduated summa cum laude from Emory University in Atlanta, Ga., where she earned her undergraduate degree. She continued her education at Emory University School of Medicine and graduated with her medical degree in 2006. She completed her internal medicine residency at Beth Israel Medical Center in New York, N.Y., where she served as chief medical resident from 2009-2010.Prior to joining Piedmont Heart, Dr. Sharma completed her fellowship in cardiovascular diseases at the University of Texas Health Science Center, including specialized training at MD Anderson Cancer Center, in Houston, Texas. She received several accolades throughout her training, including a national award for excellence from the American Heart Association's clinical council on Women in Cardiology.Dr. Sharma is board certified in internal medicine, cardiology, echocardiography, nuclear cardiology and vascular interpretation. She is also a fellow of the American College of Cardiology.Outside of the hospital, Dr. Sharma enjoys spending time with her family and traveling.Dr. Sharma accepts most insurance plans. Dr. Sharma is rated as an Experienced provider by MediFind in the treatment of Acute Coronary Syndrome. Her top areas of expertise are Angina, Arterial Embolism, Pulmonary Edema, Endoscopy, and Pacemaker Implantation.