Timothy Markman - Faculty Biosketch

Timothy Markman, MD

Assistant Professor of Medicine (Cardiovascular Medicine) at the Hospital of the University of Pennsylvania

Department: Medicine

Contact information

Hospital of the University of Pennsylvania
1 Convention Avenue
Philadelphia, PA 19104

Office: 215-615-4332

Education
BA (Neurobiology and English)
Harvard University, 2010.
MD (Medicine)
Johns Hopkins University , 2014.
MSTR
University of Pennsylvania, 2024.

Post-Graduate Training
Resident, Internal Medicine , Johns Hopkins Hospital, Baltimore, MD, 2014-2017.
Fellow, Cardiovascular Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, 2017-2019.
Fellow, Clinical Cardiac Electrophysiology, Hospital of the University of Pennsylvania, Philadelphia, PA, 2019-2020.
Chief Fellow, Clinical Cardiac Electrophysiology, Hospital of the University of Pennsylvania, Philadelphia, PA, 2020-2022.

Certifications
American Board of Internal Medicine, 2017.
American Board of Internal Medicine, Cardiovascular Disease, 2020.
National Board of Echocardiography , 2020.
American Board of Internal Medicine, Clinical Cardiac Electrophysiology, 2022.

Permanent link

> Perelman School of Medicine > Faculty > Details

Description of Clinical Expertise

Bradyarrhythmias, Tachycarrhythmias, Atrial arrhythmias, Atrial Fibrillation, Ventricular Tachycardia, Ventricular Fibrillation, Cardiac Implantable Electronic Devices, Catheter Ablation

Description of Research Expertise

Cardiac Electrophysiology, Autonomic Physiology, Neuromodulation, Translational Research

Selected Publications

Markman TM, Nazarian S, Frankel DS, Marchlinski FE, Hyman MC: Transvenous Aorticorenal Ganglion Stimulation in Humans. Hypertension July 2026.

Nathan AS, Yang L, Reddy RP, Thapi S, Eberly L, Markman T, Fanaroff AC, Giri J, Zeitler EP, Jackson LR, Graham TP, Deo R, Marchlinski FE, Frankel DS: Racial, ethnic, socioeconomic and geographic inequities in catheter ablation for atrial fibrillation. Heart Rhythm January 2026.

Rai A, Kandala A, Bola H, Schurr J, Singh M, Ahmad Y, Fanaroff A, Hu R, Malik N, Frankel DS, Markman T, Nazarian S, Giri J, Shah T, Nathan A.: Percutaneous Left Atrial Appendage Occlusion Versus Oral Anticoagulation in Atrial Fibrillation: A Systematic Review and Bayesian Meta-analysis. Journal of the Society for Cardiovascular Angiography & Interventions 2026.

Litt MJ, Gad MM, Heravi A, Supple GE, Markman TM, DePietro D, Dixit S: Transhepatic Access for Pulse Field Ablation of Atrial Fibrillation Using a Dual-Energy Lattice-Tip Catheter. JACC: Case Reports 2026.

Vojnika J, Patel D, Enriquez A, Hyman MC, Dixit S, Santangeli P, Nazarian S, Callans DJ, Frankel DS, Marchlinski FE, Markman TM: Physiological Markers of Effective Autonomic Denervation Are Associated With Outcomes After Cardioneuroablation for Vasovagal Syncope. JACC: Clinical Electrophysiology 2026.

Gardziejczyk P, Tertulien T, Stuckey M, Oraii A, Afzalian A, Sagawa Y, Hanumanthu B, Markman TM, Hyman Mc, Mirwais M, Sivamurthy P, Frankel DS, Marchlinski FE, Enriquez A, Garcia F: Clinical Characteristics of Multifocal PVCs Originating from the Basal Septal Region of the Left Ventricle: Anatomy, mapping, and ablation. Heart Rhythm 2026.

77. Chery G, Every A, Enriquez A, Deo R, Nazarian S, Callans DJ, Frankel DS, Marchlinski FE, Markman TM: Medication Costs for Dofetilide: Comparison of Insurance Copayments Versus Generic Pricing Through Cost Plus Drug Company. Circulation 2026.

Patel D, Vardar U, Mai W, Grubb A, van Niekerk CJ, Sugrue Alan, Garg L, Pothenini NVK, Supple GE, Nazarian S, Deo R, Enriquez A, Callans DJ, Schaller RD, Hyman MC, Frankel DS, Marchlinski FE, Markman TM: Predicting Survival in Ventricular Tachycardia Storm: The CHAMPS Risk Score and Implications for Ablation Timing. JACC: Clinical Electrophysiology 2026.

Oraii A, Afzalian A, Chaumont C, Rodriguez-Queralto O, Liao T, Gad MM, Zaidi SM, Zado E, Tschabrunn CM, Hanumanthu B, Hyman MC, Markman TM, Guandlaini G, Kumareswaran R, Deo R, Riley MP, Lin D, Garcia FC, Nazarian S, Supple GE, Schaller RD, Frankel DS, Callans DJ, Dixit S, Marchlinski FE: Role of Non-pulmonary Vein Triggers in Outcomes of First-Time Atrial Fibrillation Ablation. JACC: Clinical Electrophysiology 2026.

Petzl AM, Yogasundaram H, Chaumont C, Hammond A, Dowd RP, Lin D, Tschabrunn C, Markman TM, Enriquez A, Marchlinski FE, Winterfield JR, Hyman MC: High-Density versus Point-by-Point Mapping in Ventricular Tachycardia Ablation: A Comparative Analysis of Substrate Characterization. Heart Rhythm O2 December 2025.