Department of Medicine
Dr. John Leonard

John P. Leonard, M.D.
Interim Chair, Weill Department of Medicine

As the Interim Chair of the Weill Department of Medicine, I look forward to the extraordinary journey ahead with the utmost enthusiasm. We are indebted to those pioneering physicians and scientists who drove the major discoveries over the past century, but we cannot rest on their laurels. Today's world of translational research offers undiscovered vistas to explore that will open the door to life-saving therapies. An ever-expanding universe of biomedical sciences, genomics, and technological tools will provide the key.

New York City offers an ideal setting for our pursuits, a multicultural academic mecca providing a full spectrum of patient cohorts and diseases that is unparalleled anywhere in the world. Our researchers are collaborating on projects nationally and internationally with colleagues at the Clinical and Translational Science Center (CTSC) here at Weill Cornell Medicine/NewYork-Presbyterian, as well as with our neighboring world-class institutions, Memorial Sloan-Kettering Cancer Center, Rockefeller University, and Hospital for Special Surgery. Read more


Heme/Onc Grand Rounds: Drivers of Thrombohemorrhagic Events in JAK2 V617F Myeloproliferative Neoplasms

Heme/Onc Grand Rounds: Drivers of Thrombohemorrhagic Events in JAK2 V617F Myeloproliferative Neoplasms

May 23, 2017
8:00am to 9:00am

Weill Cornell Medical College

Dr. Ghaith Abu Zeinah, M.D. Clinical Fellow Division of Hematology-Medical Oncology Department of Medicine Weill Cornell Medicine, New York, NY

Basic Genetics For Physicians Course

Basic Genetics For Physicians Course

May 23, 2017
5:00pm to 6:00pm

Weill Cornell Medical College

Advances in basic sciences are increasingly offering innovation to our prevention and management of human diseases. In order to provide optimal patient care, physicians need to...

Medicine Grand Rounds May 24th, 2017

Medicine Grand Rounds May 24th, 2017

May 24, 2017
8:00am to 9:00am

Uris Auditorium

"TBD" Monika Safford, MD Chief of the Division of General Internal Medicine NYP- Weill Cornell Medical College
Castle Connolly Top DoctorsUS News Best HospitalsNew York Magazine Best Doctors 2016


Dr. Christini Appointed as Vice Dean of the Weill Cornell Graduate School of Medical Sciences

Dr. David Christini
In his new role as Vice Dean, Dr. Christini will develop and implement educational innovations for master’s and doctoral students with an emphasis on the latest in biomedical research and training.

Dr. Rafii and Collaborators Publish Stem Cell Breakthrough in Nature

The study describes a new method to make an unlimited supply of healthy blood cells from the readily available cells that line blood vessels. This is the first time that any research group has generated such blood-forming stem cells.

Dinner with DiMaggio: Dr. Positano Authors an Illuminating New Book

Dr. Rock Positano
An illuminating new book has hit the stands. Told from the perspective of podiatrist Dr. Rock Positano, “Dinner with DiMaggio – Memories of an American Hero” reveals a unique narrative on the life of baseball great Joe DiMaggio.

Dr. Cruz Named National Hispanic Medical Association Resident of the Year

Dr. Nicole Cruz
The Weill Department of Medicine is delighted to announce that Dr. Nicole Cruz has been named the National Hispanic Medical Association Resident of the Year. This honor will be bestowed at the NHMA National Meeting in Washington, DC in May 2017.

Weill Department of Medicine Notes the Passing of Dr. R.A. Rees Pritchett

Dr. R.A. Rees Pritchett
The Weill Department of Medicine has lost an extraordinarily talented, distinguished, and dedicated member of its staff with the recent passing of Dr. Rees Pritchett.

Clinical Trials

Are you a patient or healthy volunteer looking to join a trial today?

Weill Department of Medicine Annual Report

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Make a gift to the Fund For Medicine

Established in 1991 thanks to the generosity of donors and friends, the Fund For Medicine has supported a tradition of excellence in the Joan and Sanford I. Weill Department of Medicine.

Residency training

Residency training in Internal Medicine

The Joan and Sanford I. Weill Department of Medicine is home to one of the country's premiere internal medicine residency programs.