Dr. John Pfeifer

Although I enjoy caring for all cardiac patients, my special interests include patients born with heart defects and now adults, pregnancy with heart disease, and valvular heart disease. In addition, I am interested in keeping people healthy and avoiding heart disease as much as possible. Dr. Upadhya is rated as a Distinguished provider by MediFind in the treatment of Heart Failure with Preserved Ejection Fraction (HFpEF). Her top areas of expertise are Hypertensive Heart Disease, Heart Failure with Preserved Ejection Fraction (HFpEF), Heart Failure, Pacemaker Implantation, and Atherectomy.

Melissa McKernan-Pulliam, MD, specializes in cardiology and is board-certified in clinical cardiac electrophysiology and cardiovascular disease by the American Board of Internal Medicine. She is affiliated with UPMC Williamsport. Dr. McKernan-Pulliam received her medical degree from Thomas Jefferson University Sidney Kimmel Medical College and completed a residency and fellowship at the University of Pennsylvania Health System. Dr. Mckernan-Pulliam is rated as a Distinguished provider by MediFind in the treatment of Heart Failure with Preserved Ejection Fraction (HFpEF). Her top areas of expertise are Atrial Fibrillation, Arrhythmogenic Right Ventricular Cardiomyopathy, Arrhythmias, Pacemaker Implantation, and Cardiac Ablation.

Dr. Martin specializes in evaluation and management of coronary artery and valvular heart disease. His clinical interests include advanced cardiac imaging, including 3-D transesophageal echocardiography and cardiac CT. Dr. Martin obtained his medical degree from the Philadelphia College of Osteopathic Medicine. He also completed his residency and fellowship in cardiovascular medicine at Geisinger Medical Center. He is board certified by the American Board of Internal Medicine in internal medicine, cardiovascular disease, cardiac CT and echocardiography. Dr. Martin is rated as an Advanced provider by MediFind in the treatment of Heart Failure with Preserved Ejection Fraction (HFpEF). His top areas of expertise are Heart Failure with Preserved Ejection Fraction (HFpEF), Emphysema, Aortic Regurgitation, and Angina.