Stamford Health Medical Group Member
Lowell A. Safren, MD
Patient Ratings Not Available
Stamford Health Medical Group Member
Stamford Health Medical Group Electrophysiology
Main: 203.276.2321
Fax: 203.276.2327
About Me
Dr. Safren is a cardiologist and electrophysiologist at Stamford Health in Stamford, CT. He specializes in the care of heart rhythm disorders.
He has advanced training in the medical and procedural management of electrical disorders of the heart, including atrial fibrillation (AFib), supraventricular tachycardia (SVT), premature ventricular contractions (PVCs), and ventricular tachycardia (VT). Additionally, he performs left atrial appendage occlusion, including in combination with atrial fibrillation ablation. He also implants a range of devices for abnormally slow and fast heart rhythms, including pacemakers and defibrillators (ICDs), incorporating traditional transvenous systems as well as newer leadless and extravascular devices. He has experience with the latest innovations in electrophysiology including pulsed field ablation and conduction system pacing.
He provides comprehensive, evidence-based care, making sure patients are fully informed of all lifestyle, medical, and procedural options and participate in shared decision-making.
Dr. Safren graduated from Vanderbilt University with degrees in molecular/cellular biology and political science, and served as student body president of the College of Arts and Sciences. He received his medical degree from Cooper Medical School of Rowan University. He completed residency training in internal medicine at MedStar Georgetown University Hospital. He completed fellowship training in cardiovascular disease at Cooper University Hospital and advanced fellowship training in cardiac electrophysiology at Montefiore Medical Center/Albert Einstein College of Medicine.
Dr. Safren is a published researcher, with recent work exploring optimized procedural protocols for pulsed field ablation.
Outside of work, Dr. Safren enjoys playing tennis and trivia. An ever-optimist, he maintains an avid fandom for the Vanderbilt Commodores and Washington, DC, sports franchises, especially the football team.
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Specialties
Specialties
Cardiology
ElectrophysiologySpecial Interests
Languages
English
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Education & Training
Medical School
Cooper Medical School of Rowan University
Residency
MedStar Georgetown University Hospital
Fellowship
Albert Einstein College of Medicine
Cooper Hospital/University Medical Center -
Board Certifications & Affiliations
Board Certifications
American Board of Internal Medicine - Cardiovascular Disease
American Board of Internal Medicine - Internal MedicineAffiliations
American College of Cardiology
Heart Rhythm Society
Patient Reviews & Comments
All patient satisfaction ratings are submitted by patients who have confirmed email addresses. After their visit, these patients receive a survey within a few days. They complete the survey online, providing feedback on specific aspects of their care. We use this feedback to improve our services and ensure each patient has an exceptional experience. To respect our patients' time, we only send out surveys once every 90 days, regardless of how many times they visit the clinic.
Insurance Accepted
The below is a list of all insurance plans generally accepted by Stamford Health Medical Group. Please be sure to confirm insurance coverage and the provider's participation with your specific plan before scheduling your appointment.
2 Including Mediblue, CT Health Exchange Plans and a limited number of Empire BCBS plans
3 Including Medicare, Compass and CT Health Exchange Plans; excluding Individual Value Plan
4 Including Medicare
5 Excluding Medicare
6 Excluding Oxford Metro
Published Work
Pulsed field atrial fibrillation ablation with variable loop circular catheter: outcomes from large US registry
Europace. 2026 Sep 2;28(9):euag226. doi: 10.1093/europace/euag226.
Pre-clinical impact of higher irrigation flow rates during pulsed field ablation with a variable loop circular catheter
Europace. 2026 Jun 2;28(6):euag120. doi: 10.1093/europace/euag120.
Principles guiding PFA cardiac catheter and sheath management from preclinical assessment of microbubble formation and air intrusion models
Heart Rhythm. 2026 May 14:S1547-5271(26)02371-4. doi: 10.1016/j.hrthm.2026.05.016.
Income disparity and incident cardiovascular disease in older Americans
Prog Cardiovasc Dis. 2022 Mar-Apr;71:92-99. doi: 10.1016/j.pcad.2021.07.010. Epub 2021 Jul 25.
Reasons for Screen Failure for Transcatheter Mitral Valve Repair and Replacement
Am J Cardiol. 2021 Jun 1;148:130-137. doi: 10.1016/j.amjcard.2021.02.022. Epub 2021 Mar 3.
Functional cyclic AMP response element in the breast cancer resistance protein (BCRP/ABCG2) promoter modulates epidermal growth factor receptor pathway- or androgen withdrawal-mediated BCRP/ABCG2 transcription in human cancer cells
Biochim Biophys Acta. 2015 Mar;1849(3):317-27. doi: 10.1016/j.bbagrm.2015.01.003. Epub 2015 Jan 21.
If You Are in Need of Emergency Care, Call 911.
The majority of the physicians on the Stamford Hospital Medical Staff are not employees or agents of the Hospital. They are independent practitioners who have been granted the privilege of using the Hospital's facilities for the care and treatment of their patients. This includes, but is not limited to, emergency department physicians, anesthesiologists, radiologists, surgeons, cardiologists, obstetricians, pathologists and other consultants who may treat patients.
Insurance listings are subject to change at any time. Please verify insurance plan acceptance when scheduling an appointment with a healthcare provider.