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Meet the Fellows of IC-OS

Fellows of IC-OS

Fellowship is one of the most distinguished designations that ICOS offers its members. One's vital participation and leadership in the cardio-oncology community are recognized by this honor. Fellows are those who have made exceptional contributions to our mission of advancing the cardiovascular care of cancer patients and survivors.

Meet Our Fellows

Anita M. Arnold, DO, FACC , F-ICOS, MBA


Dr. Arnold is a graduate of the NY College of Osteopathic Medicine and subsequently completed her internal medicine residency at the Bryn Mawr Hospital in Philadelphia where she was the chief resident, then completed 4 years of Cardiology/Interventional Cardiology at the Cleveland Clinic in Ohio. She practiced most of her career in Milwaukee, Wisconsin where she was the medical director of the Cardiovascular Research Foundation, as well as a practicing interventionist. Time and weather eventually brought her to Florida, where she worked part time at USF working with the Cardiology Fellows while finishing an MBA program at the George Washington University in DC.



Dr Kolluru is a Board-certified practicing cardiologist with special interests in cardiac imaging and cardio-oncology in USA. She initially started cardio-oncology practice in Decatur, Illinois with large private oncologist group and worked for 8 years before moving to Seattle, Washington in 2020. She is currently working with Virginia Mason Franciscan Health system in Seattle providing cardiovascular care and developing cardio-oncology program.



Dr Arjun Ghosh is a consultant cardiologist at Barts Heart Centre and University College London Hospital and runs the cardio-oncology programme at UCLH. He helped establish the UK’s first cardio-oncology course as well as the first pan-European cardio-oncology course and was joint first-author of the UK’s first cardio-oncology guidelines. Alongside educational activities, Arjun is involved in research in emerging cardiotoxcities and is also the co-host of the ICOS podcast.



Dr. Guha is a Director of Cardio-Oncology, Cardio-Oncology Program, Georgia Cancer Center, Assistant Professor of Medicine, Division of Cardiovascular Disease, Augusta University, Augusta, GA, USA
1410 Laney Walker Blvd, CN 5313
Augusta, GA 30912
Twitter – @avirupguha

Charles Porter, MD


Charles Porter MD established the Cardio-oncology program for the University of Kansas Cancer at the University of Kansas Medical Center in 2007. He was designated as the inaugural American Vice-President of IC-OS in 2009. He has overseen the growth of the KUMC cardio-oncology program and continues to expand its collaboration with a broad array of oncologists in patient care and research.

Dr. Daniel Cehic


Dr. Cehic is a cardiologist based in Adelaide, Australia. He trained at the University of Adelaide, Royal Adelaide Hospital and John Radcliffe Hospital in Oxford, England subspecialising in
Electrophysiology. He returned to Australia in 1997 and joined Adelaide Cardiology and became a Senior Visiting Cardiologist at the Royal Adelaide Hospital where he remained until 2008, leaving to take up full time private practice with what is now GenesisCare. He became the Chief Medical Officer

Daniel Lenihan, MD, FACC, FESC


I have been active in cardio-oncology and heart failure, for over 20 years. The main focus of these efforts have included hemodynamic assessments, angiogenic growth factor response, novel cardiac biomarkers as well as optimal methods to prevent or detect heart failure at the earliest stage possible in patients undergoing treatment for cancer. My current research projects include early phase clinical trials in cardio-oncology, heart failure and amyloidosis.



Dr. Sahni is currently Associate Professor of Medicine and Cardiovascular diseases at Mount Sinai Hospital, New York. She established the first Cardio-Oncology program at Mount Sinai Cardiovascular Institute, where she has been the Director of Cardio-Oncology and Inpatient Cardiology Consult services since 2014.

Joseph R. Carver, MD, FACC


Joseph R. Carver, MD, FACC is a Board Certified cardiologist. He is the Founding Editor of the American Journal of Managed Care and was a Senior Corporate Medical Director at Aetna U.S. Healthcare from 1992-2001 where he was responsible for new program development and directed the National Medical Excellence Program. From 1999-2001, he was Co-chairperson of the New Jersey and Michigan Working Groups that established voluntary agreements among the insurers in those states to cover the routine costs of clinical trial participation for cancer patients.

Joshua Mitchell, MD, MSCI


Joshua Mitchell, MD, MSCI is an Assistant Professor of Medicine and Director of the Cardio-Oncology Fellowship at the Cardio-Oncology Center of Excellence, Washington University School of Medicine in St. Louis. Prior to coming to Washington University in 2015, he served 11 years in the US Army, deploying with the 82nd Airborne Division and the 75th Ranger Regiment, earning two Bronze Start Medals, and reaching the rank of Major.

Dr Kalliopi Keramida (MD, PhD, FESC, FHFA, FICOS)


Dr Kalliopi Keramida (MD, PhD, FESC, FHFA, FICOS) is a consultant cardiologist at General Anti-Cancer, Oncological Hospital Agios Savvas, Athens, Greece. She is board certified in Cardio-Oncology by International Cardio-Oncology Society (ICOS) (2020) and in Heart Failure (ESC/HFA) (2016).

Dr. Kathleen Zhang


Dr. Zhang completed medical school and Internal Medicine residency at the University of Pennsylvania, followed by fellowships in Cardiology and Cardio-Oncology at Washington University in St. Louis. She specializes in the cardiovascular care of patients with cancer as well as cardiac amyloidosis at Washington University in St. Louis.

Michael Fradley, MD


Dr. Michael Fradley is an Associate Professor of Clinical Medicine in the Division of Cardiology at the Perelman School of Medicine at the University of Pennsylvania and serves as the medical director of the Penn Medicine Cardio-Oncology program. He earned his B.S at Yale University and his MD degree at the Johns Hopkins University School of Medicine.

Michelle Weisfelner Bloom, MD


Dr. Bloom, a faculty cardiologist and Associate Clinical Professor of Medicine at Stony Brook University Medical Center, is board certified in Cardiovascular Disease, Advanced Heart Failure and Transplant Cardiology, and Cardio-Oncology. Her specialties include heart failure, complex valvular and structural heart disease, genetic cardiomyopathies, investigational medicines and devices, mechanical device therapies to treat advanced heart disease, and Cardio-Oncology.

Sebastian Szmit M.D., Ph.D.

Associate Professor of Medicine

Sebastian Szmit graduated from the Military Medical Academy in Poland. He began cardio-
oncology activities in 2006 working for the Department of Oncology of the Military Institute of Medicine. He was appointed the executive editor of the Task Force of National Consultants in Cardiology and Clinical Oncology, and developed the first two Polish Recommendations on cardiovascular safety of patients with breast cancer (published in 2010) and lung cancer (published in 2012).

Dr Sohaib Nazir MBBS BSc (Hons) MRCP PhD FHEA


Honorary Consultant Cardiologist, Royal Brompton Hospital, part of Guy’s and St Thomas Hospital Foundation Trust

Clinical Senior Lecturer, School of Biomedical Engineering and Imaging Sciences, King’s College London

Chair of Education, British Cardiovascular Society

United Kingdom



Professor Stuart Rosen is Consultant Cardiologist at the Royal Brompton and London Northwest Hospitals and Professor of Practice (Cardiology) in the National Heart and Lung Institute, Imperial College and Honorary Adjunct Professor of Cardiovascular Medicine, King’s College, London. He received his medical undergraduate education at Pembroke College, Cambridge and at Charing Cross and Westminster Medical School. His specialist cardiology training was at Charing Cross, Hammersmith and St Mary’s Hospitals and he also spent several years in cardiovascular research, funded by the Medical Research Council and the British Heart Foundation.

Susan Dent, MD


Dr. Dent attended McMaster University Medical School in Hamilton, Ontario, Canada and completed her residency training in Internal Medicine and Medical Oncology at the Ottawa Hospital, University of Ottawa, Ontario, Canada. She subsequently completed a post graduate research fellowship in clinical trials at the Canadian Cancer Trials Group (CCTG) in Kingston, Ontario, and was appointed as a staff medical oncologist at the Northwestern Ontario Cancer Center in Thunder Bay, Ontario.

Teresa Lopez-Fernandez, MD

University Hospital La Paz, Madrid, Spain

Teresa López-Fernández is a clinical investigator and consultant cardiologist at La Paz University Hospital in Madrid, Spain. She is specializes in cardiac imaging (she is board certified in advanced and transesophageal echocardiography by the European Society of Cardiology (ESC)) and cardio-oncology (she is board certified by the International Cardio-Oncology Society)

Tushar Tarun, MD, FACC, FIC-OS


Dr.Tarun is a non-invasive cardiologist at University of Arkansas for Medical Sciences. His interests include multi-modality cardiac imaging including Echocardiography, Cardiac CT, Cardiac MRI and Nuclear Cardiology. Dr Tarun takes care of cardio-oncology patients from all across the state that visit for their cancer and myeloma care at the renowned cancer center at University of Arkansas for Medical Sciences in Little Rock AR.

Vijay Rao, MD, PhD


Dr. Rao completed his MD and PhD at the Medical University of South Carolina, Internal Medicine residency at Duke University Medical Center, followed by Cardiology fellowship at the University of California, San Francisco. He is the Director of the CardioOncology, Heart Failure, and Anticoagulation clinics at Franciscan Health in Indianapolis, Indiana.