Meet Our Team

Our Hepatic and Intestinal Vascular and Thrombotic Disorders Team consists of the following individuals:


Ronald Hoffman, MD
Professor, Medicine (Hematology and Medical Oncology)
Professor, Gene and Cell Medicine

John Mascarenhas, MD
Assistant Professor, Medicine (Hematology and Medical Oncology)

Interventional Radiologist

Robert Lookstein, MD, FSIR, FAH
Associate Professor, Radiology and Surgery (Vascular and Interventional Radiology)

Liver Diseases Specialists

Thomas Schiano, MD
Professor, Medicine (Liver Diseases)

Charissa Chang, MD
Assistant Professor, Medicine (Liver Diseases)


Maria Isabel Fiel, MD
Professor, Pathology


Ronen Arnon, MD
Assistant Professor, Pediatrics
Assistant Professor, Surgery


Sander Florman, MD
Director, Recanati Miller Transplantation Institute

Kishore Iyer, MD
Associate Professor, Surgery
Associate Professor, Pediatrics

Clinical Trials

Please contact 212-241-2297 to discuss participating in clinical trials.