Houston Methodist. Leading Medicine.
Houston Methodist. Leading Medicine


Faculty - Hematology

Lawrence Rice, MD, FACP (Subspecialty Education Coordinator) serves as Chief of the Academic Hematology Division at Methodist Hospital and Professor of Medicine at Weill Cornell Medical College. After graduation from Emory School of Medicine, he completed Internal Medicine Internship, Residency, and Hematology fellowship at Baylor College of Medicine, remaining on the faculty at Baylor to become Professor of Medicine, Professor of Thrombosis Research, Hematology Program Director, and Hematology/Oncology Course Director. He has had a very active Consultative Hematology practice based at Methodist for more than 30 years, remarkable for the depth and breadth of the blood disorders managed, including several patients each with such problems as Congenital TTP, paroxysmal nocturnal hemoglobinuria, and Evans' syndrome. Dr. Rice has received numerous Outstanding Teacher awards, including induction as part of the inaugural class of Baylor's "Faculty Educator Hall of Fame" and, at Methodist, the GME "Teacher of the Year" and "Edward C. Lynch Outstanding Teacher" awards.  His research interests include thrombocytopenic disorders (ITP, TTP and HIT); bleeding, clotting and anticoagulation problems; and anemias, erythropoietin actions and iron metabolism.

Swaminathan Padmanabhan Iyer, MB, BS, MD received his MB, BS, from Bangalore Medical College.  He completed an internship and residency in medicine at Wayne State University and a Fellowship in Hematology and Medical Oncology at the Sylvester Comprehensive Cancer Center, University of Miami, Florida.  Soon after his fellowship, he spent many years at the Roswell Park Cancer Institute as the staf physician in Lymphoma and Myeloma Care Center and the Blood and Marrow Transplant Program.  Dr. Iyer is a diplomat of the American Board of Internal Medicine and is board certified in Internal Medicine, Hematology and Medical Oncology.  He is currently the leader of the Early Drug Development Program in Oncology and Hematology and co-director of the Malignant Hematology Program.  Dr. Iyer has extensive expertise in early phase clinical studies including several first in human anticancer agents.  Dr. Iyer has been listed as one of America’s Top Physicians since 2007. 


John J. McCarthy, MD is an Associate Professor at Weill Cornell-Methodist having practiced as a clinician and educator in academic positions in Internal Medicine and Hematology for over thirty years. He spent his formative youth in Indiana and New Jersey before attending the University of Notre Dame and Baylor College of Medicine. He has instructed thousands of students and medical residents through basic sciences, clinical sciences, residencies and fellowships. He has interests in clinical experience in a broad range of entities in Internal Medicine, benign hematology, coagulation, hematologic malignancies, and transplantation. He has received a number of teaching awards ranging from basic science education through clinical fellowship levels. He has received Master Teacher certification, presided over several Houston medical societies, and has been recognized on regional "Top Doctor" lists. He and his family have resided in the Houston area since 1970.

Ethan Natelson, MD is Board certified in hematology and internal medicine and the Director of the Transitional Residency Program at TMH. He is a Professor of Clinical Medicine at Weill-Cornell Medical College. Dr. Natelson is also the Chairperson of one of two TMH IRBs for the approval of human research. He is a member of the Board of the Gulf Coast Regional Blood Center and Chair of their Education and Research Committee. Dr. Natelson is a Board member of the Christus/Stehlin Cancer Foundation. He maintains a clinical practice in hematology at TMH, participates in morning report and noon internal medicine teaching conferences and serves as one of several rounding physicians on the TMH University Teaching Medical Service. He has an outside interest in Pomology and is the president of the North American Fruit Explorers (NAFEX) and Southern Fruit Fellowship (SFF) organizations and is the Editor of the Gulf Coast Fruit Study Newsletter as well as the Southern Fruit Fellowship Newsletter.