Corbin Rayfield, MD

About Dr. Rayfield

I trained in internal medicine and cardiovascular disease at Mayo Clinic in Arizona, where I served as chief cardiology fellow, then completed subspecialty training in clinical cardiac electrophysiology at the University of Chicago. I practiced cardiology in Scottsdale before returning for electrophysiology training, and I now see patients with heart rhythm disorders in the same community.

I take care of patients with abnormal heart rhythms and patients living with pacemakers and defibrillators. Much of that work is atrial fibrillation, which I treat with pulsed field and radiofrequency ablation. My electrophysiology training at the University of Chicago concentrated on pulsed field ablation, conduction system pacing, and leadless and modular pacing systems. Pulsed field ablation was a routine part of that program, and I performed more than 250 of these cases during fellowship.

Choosing between ablation and medication is a nuanced, individual decision. When there is a lot to weigh, I walk through the options with you until we land on the one that fits your situation.

I don't consider a visit finished until you understand the “why” behind your treatment plan.

During medical school I spent a year as a research fellow in mathematical oncology at Mayo Clinic, building machine-learning models that predicted treatment response and survival in brain tumor patients. It has nothing to do with heart rhythms, but the habit it built — asking what the data will actually support before acting on it — is the same one I use deciding whether someone needs an ablation.

Away from the lab, I live in Phoenix with my wife, our two children, and two dogs.

I am certified by the American Board of Internal Medicine in Internal Medicine and in Cardiovascular Disease, and by the National Board of Echocardiography in Adult Comprehensive Echocardiography.

• Medical SchoolUniversity of Illinois at Chicago — 2016
• ResidencyInternal Medicine — Mayo Clinic, Arizona — 2020
• FellowshipCardiovascular Disease — Mayo Clinic, Arizona — 2023
• FellowshipClinical Cardiac Electrophysiology — University of Chicago — 2026
• Board CertificationAmerican Board of Internal Medicine — Internal Medicine; Cardiovascular Disease
• Board CertificationNational Board of Echocardiography — Adult Comprehensive Echocardiography
• Hospital AffiliationsHonorHealth Scottsdale Osborn, Scottsdale Shea, and Deer Valley medical centers
• Arizona License54824
• NPI1235585167

Selected publications

• Subcutaneous implantable cardioverter-defibrillator system malfunction during pelvic radiation therapy: recognition and management of a rare complication Rayfield C, Beaser AD, Ozcan C. HeartRhythm Case Reports, 2026;12(7):749–751. doi:10.1016/j.hrcr.2026.04.003
• Approach to atrial pacing in an extracardiac Fontan patient Joshee SR, Rayfield C, Yeshwant S, et al. JACC: Clinical Electrophysiology, 2025;11(12):2819–2823. doi:10.1016/j.jacep.2025.08.022
• Machine learning approaches for phenotyping in cardiogenic shock and critical illness Jentzer JC, Rayfield C, Soussi S, et al. JACC: Advances, 2022;1(4):100126. doi:10.1016/j.jacadv.2022.100126
• Machine learning on high-dimensional data to predict bleeding post percutaneous coronary intervention Rayfield C, Agasthi P, Mookadam F, et al. Journal of Invasive Cardiology, 2020;32(5):E122–E129. doi:10.25270/jic/19.00429
• Distinct phenotypic clusters of glioblastoma growth and response kinetics predict survival Rayfield C, Grady F, De Leon G, et al. JCO Clinical Cancer Informatics, 2018;2:1–14. doi:10.1200/cci.17.00080