Barbara Dudczak is a Cardiologist in Billings,, Montana. Dr. Dudczak is rated as a Distinguished provider by MediFind in the treatment of Angina. Her top areas of expertise are Aortic Regurgitation, Coronary Heart Disease, Necrosis, and Pediatric Myocarditis.

Brian Rah is a Cardiologist in Billings,, Montana. Dr. Rah is rated as a Distinguished provider by MediFind in the treatment of Angina. His top areas of expertise are Coronary Heart Disease, Angina, Atherosclerosis, Pacemaker Implantation, and Cardiac Ablation.

Robert Phillips is a Cardiologist in Helena,, Montana. Dr. Phillips is rated as a Distinguished provider by MediFind in the treatment of Angina. His top areas of expertise are Coronary Heart Disease, Arrhythmogenic Right Ventricular Cardiomyopathy, Angina, and Atherosclerosis.

Alexis Harrison is a Cardiologist in Kalispell,, Montana. Dr. Harrison is rated as a Distinguished provider by MediFind in the treatment of Angina. Her top areas of expertise are Atrial Fibrillation, Pediatric Myocarditis, Aortic Regurgitation, Pacemaker Implantation, and Angioplasty.

Dr. Jorge (pronounced “George”) Castriz is a board certified interventional cardiologist. Dr. Castriz offers the full complement of cardiology services including arterial catheterization, biventricular pacing, temporary pacemakers, conventional and stress echocardiography as well as exercise and pharmacologic stress testing. He also brings his expertise in all aspects of peripheral angiography and coronary angioplasty (AAA endovascular stent grafts, renal artery stents, angioplasty, DCA, rotablator, brachytherapy, IVUS and physiologic lesion assessment). Dr. Castriz is board certified in Internal Medicine, Cardiovascular Diseases and Interventional Cardiology and is a fellow of the American College of Cardiology. Prior to joining the Great Falls Clinic in 2013, Dr. Castriz maintained an active practice with the Cardiovascular Medical Specialists of the Palm Beaches in Jupiter, Florida. Prior to that, Dr. Castriz owned a private practice in Palm Beach Gardens, Florida for nine years. Dr. Castriz received his medical degree from the University Central Del Este in the Dominican Republic. He completed his internship and residency in Internal Medicine, and his fellowship in Interventional Cardiology at the University of Oklahoma Health Science Center in Oklahoma City, OK. Dr. Castriz is rated as a Distinguished provider by MediFind in the treatment of Angina. His top areas of expertise are Angina, Coronary Heart Disease, Heart Attack, Metabolic Syndrome, and Pacemaker Implantation.

Joseph Krezowski is a Cardiologist in Kalispell,, Montana. Dr. Krezowski is rated as a Distinguished provider by MediFind in the treatment of Angina. His top areas of expertise are Aortic Regurgitation, Atrial Fibrillation, Pediatric Myocarditis, Angioplasty, and Pacemaker Implantation.

Blair Erb is a Cardiologist in Bozeman,, Montana. Dr. Erb is rated as a Distinguished provider by MediFind in the treatment of Angina. His top areas of expertise are Endocarditis, Arrhythmias, Familial Ventricular Tachycardia, and Atrial Fibrillation.

Robert Mitchell is a Cardiologist in Kalispell, Montana. Dr. Mitchell is rated as a Distinguished provider by MediFind in the treatment of Angina. His top areas of expertise are Atrial Fibrillation, Aortic Regurgitation, Arrhythmias, Pediatric Myocarditis, and Pacemaker Implantation.

Richard Paustian is a Cardiologist in Helena, Montana. Dr. Paustian is rated as a Distinguished provider by MediFind in the treatment of Angina. His top areas of expertise are Coronary Heart Disease, Atherosclerosis, Angina, Dilated Cardiomyopathy (DCM), and Pacemaker Implantation.

Eve Gillespie is a Cardiologist in Kalispell,, Montana. Dr. Gillespie is rated as a Distinguished provider by MediFind in the treatment of Angina. Her top areas of expertise are Heart Failure with Preserved Ejection Fraction (HFpEF), Heart Failure, Pulmonary Edema, Pacemaker Implantation, and Cardiac Ablation.

Preston Schneider is a Cardiologist in Bozeman, Montana. Dr. Schneider has been practicing medicine for over 17 years and is rated as a Distinguished provider by MediFind in the treatment of Angina. His top areas of expertise are Adenosine Deaminase 2 Deficiency, Arrhythmias, Familial Ventricular Tachycardia, and Atrial Fibrillation.

Robert Tracy is a Cardiologist in Billings,, Montana. Dr. Tracy has been practicing medicine for over 42 years and is rated as a Distinguished provider by MediFind in the treatment of Angina. His top areas of expertise are Coronary Heart Disease, Atherosclerosis, Angina, Pacemaker Implantation, and Transcatheter Aortic Valve Replacement (TAVR).

Dr. Gerasimou has been practicing medicine in Montana for over 20 years. Formerly an interventional cardiologist for 19 years, Dr. Gerasimou transitioned her practice to general cardiology in July 2021. Dr. Gerasimou specializes in all aspects of cardiology and brings with her an extensive cardiac background. Dr. Gerasimou attended Saint Francis University in Loretto, Pennsylvania for her Bachelor of Science in Biology in 1987. She then went on to complete her medical degree from the American University in Montserrat in 1991. She completed her residency in Internal Medicine at the Danbury Hospital in Connecticut in 1994 and her cardiology fellowship at the University of Iowa in 1997. After completing schooling, Dr. Gerasimou accepted her first job as a cardiologist at the Great Falls Clinic in 1998. We are excited to welcome her back to our team full-time! In her spare time, Dr. Gerasimou enjoys spending time with her family and friends. She also enjoys hiking, fly-fishing, skiing and her Peloton bike. Dr. Gerasimou is rated as a Distinguished provider by MediFind in the treatment of Angina. Her top areas of expertise are Coronary Heart Disease, Angina, Atrial Fibrillation, and Atherosclerosis.

Clara Kay is a Cardiologist in Glendive,, Montana. Dr. Kay is rated as a Distinguished provider by MediFind in the treatment of Angina. Her top areas of expertise are Aortic Regurgitation, Ectopic Heartbeat, Necrosis, Pacemaker Implantation, and Cardiac Ablation.

James Maddux is an Interventional Cardiologist in Polson, Montana. Dr. Maddux is rated as a Distinguished provider by MediFind in the treatment of Angina. His top areas of expertise are Hypertrophic Cardiomyopathy (HCM), Subvalvular Aortic Stenosis, Cardiomyopathy, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR). Dr. Maddux is currently accepting new patients.

Nathaniel Hall is a Cardiologist in Kalispell,, Montana. Dr. Hall is rated as a Distinguished provider by MediFind in the treatment of Angina. His top areas of expertise are Coronary Heart Disease, Arrhythmias, Sick Sinus Syndrome, Pacemaker Implantation, and Angioplasty.

Michael Reed is an Interventional Cardiologist in Missoula, Montana. Dr. Reed is rated as a Distinguished provider by MediFind in the treatment of Angina. His top areas of expertise are Coronary Heart Disease, Heart Attack, Aortic Valve Stenosis, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR). Dr. Reed is currently accepting new patients.

Joseph Canciller is a Cardiologist in Billings,, Montana. Dr. Canciller is rated as a Distinguished provider by MediFind in the treatment of Angina. His top areas of expertise are Arrhythmias, Atrial Fibrillation, Sick Sinus Syndrome, Pacemaker Implantation, and Aortic Valve Replacement.

Dr. Ritchie offers the full complement of cardiology services including arterial catheterization; temporary pacemakers; conventional and stress echocardiography, transesophageal echocardiography as well as exercise and pharmacologic stress testing. He also brings his expertise in all aspects of coronary angioplasty, including structural heart disease such as closure of atrial septal defects, balloon valvuloplasties; and peripheral angiography (AAA endovascular stent grafts, renal artery stents), DCA, rotablator, brachytherapy, IVUS and physiologic lesion assessment. Dr. Ritchie is board certified in Internal Medicine, Cardiovascular Diseases and Interventional Cardiology. Dr. Ritchie completed his undergraduate work at the University of Evansville, where he played baseball for three years. He attended medical school at Indiana University, where he graduated with highest honors in 1986. He then went on to complete his residency at Case Western Reserve School of Medicine in Cleveland in 1989. From there, he went on to complete his fellowship at Washington University in Saint Louis, where he performed clinical rotations while receiving interventional training. In his spare time Dr. Ritchie enjoys hiking, fishing, hunting, biking and spending time with friends and family. Dr. Ritchie is rated as an Advanced provider by MediFind in the treatment of Angina. His top areas of expertise are Atrial Septal Defect (ASD), Patent Foramen Ovale, Unstable Angina, Carotid Artery Disease, and Pacemaker Implantation.

Collin Fischer is a Cardiologist in Billings,, Montana. Dr. Fischer is rated as an Advanced provider by MediFind in the treatment of Angina. His top areas of expertise are Aortic Regurgitation, Pediatric Myocarditis, Vasculitis, Pacemaker Implantation, and Cardiac Ablation.