Arrhythmia Doctors Worldwide

Dr. Alexander Krapivsky is a German board-certified internist and cardiologist with more than 20 years of experience in cardiovascular medicine. He trained at I.M. Sechenov University. He worked at University Hospital Essen, Heart Center Duisburg, and Evangelisches Krankenhaus Mülheim. From 2006 to 2015, he led the cardiac catheterization laboratory as a senior cardiologist.

He founded Herzquartier in 2015 and serves as medical director. It is a network of specialized cardiology practices in Düsseldorf, Mülheim an der Ruhr, and Mönchengladbach. His expertise includes prevention and early detection, coronary artery disease, heart failure, arrhythmias, hypertension, lipid disorders, and non‑invasive diagnostics.

Accreditations include DGK Interventional Cardiology, Active Cardiac Rhythm Devices, Heart Failure, and Special Cardiovascular Prevention. He is certified in lipidology (DGFF) and trained in internal intensive care medicine. He has authored and co‑authored research published in the New England Journal of Medicine, Clinical Research in Cardiology, and EuroIntervention.

Dr. Nitin Parashar is a cardiologist and electrophysiologist at SilverStreak Multispecialty Hospital in Gurgaon. He holds an MRCP from London and a Post-Doctoral Fellowship in Cardiac Electrophysiology. Dr. Parashar was an Assistant Professor of Cardiology at AIIMS New Delhi and SCTIMST. He works at a JCI-accredited facility that treats 1,500 patients annually.

• Performs cryoablation for atrial fibrillation and complex radio-frequency ablations.
• Implants cardiac devices including pacemakers, ICDs, and CRT systems.
• Performs interventional procedures such as TAVI and chronic total occlusion repairs.
• Uses 3D mapping for radiofrequency ablation of heart arrhythmias.

Dr. Jose Luis Merino Llorens is a cardiologist at Publio Cordon Memorial Hospital in Madrid. He treats heart rhythm disorders, specifically atrial fibrillation and arrhythmias. He performs radiofrequency ablation and manages aortic valve insufficiency. Dr. Merino Llorens works at a JCI-accredited facility, which meets international safety standards. The clinic belongs to one of Spain's largest private healthcare networks.

Dr. MC Sandeep is a cardiologist at Cura Hospitals in Bangalore. He holds a Master of Science in Cardiology from the United Kingdom and is a member of the Royal College of Physicians of London. He performs interventional procedures at this ISO-certified facility.

• Performs coronary angiography, angioplasty with stenting, and pacemaker implantation.
• Treats conditions such as chronic heart failure and coronary artery disease.
• Holds professional certifications including FIEC and FICC.
• Practices at Cura Hospitals, which follows ISO 9001:2015 quality management standards.

Currently serving as Senior Medical Director at American Clinic, Dr. Tatiana brings extensive leadership in healthcare management.

• Over 33 years leading R&D in endovascular technologies
• Former Chief Physician at Hadassah Medical Moscow
• Specializes in strategic healthcare policy development
• Experienced in implementing medical projects internationally

Dr. Sotirios Papathanasiou, MD, PhD, is an interventional cardiologist and arrhythmologist with over 20 years of experience. He is certified in interventional cardiology by EAPCI and the ESC. His expertise includes coronary artery disease, cardiac arrhythmias (including atrial fibrillation), heart failure, valvular disease, and congenital heart disease. He performs coronary angiography, angioplasty, and pacemaker implantation.

Education: Medical degree from the University of Ioannina School of Medicine. PhD from the National and Kapodistrian University of Athens (1999–2005). Postgraduate degree in interventional cardiology from the University of Athens. Training: Hippokrateion Hospital (University Cardiology Department), Alexandra Hospital, Onassis Cardiac Surgery Center, and Attikon Hospital. Affiliations: European Society of Cardiology (ESC), EAPCI, Hellenic Cardiological Society, and Hellenic Society of Lipidology and Atherosclerosis.

Languages: Greek and English.