Department of Radiation Oncology

Dr. Wiechmann is a board certified surgeon specializing in breast cancer, who was recognized with honors by the Breast Cancer Alliance, the Susan G. Komen for the Cure foundation and the Society of Surgical Oncology. Dr. Wiechmann's dedication to patient-driven, personalized care has earned many awards. These include the “Faces of Respect” Award at Montefiore Medical Center (2011-2013) and the Greenwich Hospital Quality Award (2015). Her peers recently selected Dr Wiechmann as a Castle Connolly Top Doctor, a nationally ranked service whose mission is to help consumers find the best healthcare; she has been listed in the “Guide to America’s Top Surgeons” for the past 3 years. Dr. Wiechmann is a breast surgeon with over 10 years of experience at the Comprehensive Breast Center of the Herbert Irving Comprehensive Cancer Center at NewYork-Presbyterian/Columbia, a multi-site, multi-disciplinary entity that incorporates the legacy of innovation and trust associated with the Columbia University Irving Medical Center. She works closely with a multi-disciplinary team including radiologists, medical oncologists, radiation oncologists, plastic surgeons and other breast cancer support staff. Her goal is to make patient and family experience as simple, thorough, and streamlined as possible. Dr Wiechmann approaches each patient in a personal, kind, and compassionate way and believes in shared decision-making and teamwork. She speaks English, Spanish, and Italian fluently and can conduct the consultation in any of those languages. In the clinic, Dr. Wiechmann's interests include triple negative breast cancer (ER, PR, and HER2 negative), the genetic and familial predisposition to breast cancer, and disparities in cancer treatment and outcomes. Dr Wiechmann, who was born and raised in Florence, Italy, received her medical degree Magna Cum Laude at Universita' Degli Studi Di Firenze Facolta' Di Medicina e Chirurgia in Florence, Italy. She completed a General Surgery Residency at TUFTS, St. Elizabeth's Medical Center in Boston followed by a research fellowship in the prestigious laboratory of Dr Kent Osborne and Dr Rachel Schiff, at the Lester and Sue Smith Breast Center of the Dan L. Duncan Cancer Center at Baylor College of Medicine, in Houston, Texas. At Baylor, her research focused on the preclinical development of therapies targeting the HER2 receptor; her work was recognized by Komen/AACR. Dr Wiechmann’s work has been published in many surgical and the Breast Cancer Alliance, the Susan G. Komen for the Cure foundation and the Society of Surgical Oncology have repeatedly recognized oncology publications and her with awards for her research and scholarship. After completing her research at Baylor, Dr Wiechmann was the recipient of the Breast Cancer Alliance award that funded her clinical fellowship at Memorial Sloan-Kettering Cancer Center, which led to her participation in the prestigious ASCO/AACR (American Society for Clinical Oncology/American Association for Cancer Research) course, Methods in Clinical Cancer Research.

Israel Kochin, MD is a Pediatrics provider with Mount Sinai Health System, treating patients in the New York area. Dr. Kochin is committed to compassionate, coordinated care that supports patients throughout the diverse communities we serve.

Dr. Niesvizky is Professor of Medicine at Weill Cornell Medical College and at NewYork Presbyterian Hospital/Weill Cornell Medical Center in Manhattan. He also serves as Director of the Multiple Myeloma Center at NewYork Presbyterian Hospital/Weill Cornell Medical Center. After receiving a medical degree from National University of Mexico, Dr. Niesvizky did a research fellowship in cell biology-granulocytopoiesis and an internal medicine residency at the National Institute of Nutrition in Mexico. He then completed fellowships in New York: one (hematology) at Mount Sinai Medical Center and one (hematology/medical oncology) at Memorial Sloan-Kettering Cancer Center. He has written more than 100 articles, editorials, chapters, and abstracts published in journals such as New England Journal of Medicine, Blood and Leukemia & Lymphoma, most recently on topics such as the treatment of myeloma and Waldenstrom's macroglobulinemia. He is the recipient of various grants and awards from the National Cancer Institute and the Leukemia and Lymphoma Society, including a K23 award and three translational research grants. He received the 2007 Investigator Award of the Michael Wolk Heart Foundation. He has been voted by pears as “Best Doctors” in 2013 and appeared in New York Magazine as Hematolgy “Top Doctors” 2014. A frequent lecturer, Dr Niesvizky regularly presents at annual meetings of the American Society of Hematology and the American Society of Clinical Oncology, of which he is also a member. He is an active member of the International Myeloma Working Group which defines standards of research and practice in myeloma. He is an active participant in clinical trials of promising new drugs and medical procedures for the treatment of myeloma, lymphoma, and related hematologic disorders.