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Johns Hopkins University School of Medicine Surgeons

Dorry Segev

Dorry Segev, M.D.

Dorry Segev is an associate professor of surgery and epidemiology at the Johns Hopkins University School of Medicine. During his training at Johns Hopkins, Segev has made numerous, significant contributions, including development of a mathematical model to facilitate a nationwide paired kidney exchange program. Segev’s research focuses on medical data modeling and simulation, analysis of large health care data sets and clinical study. His clinical focus is on incompatible organ transplantation as well as kidney and liver transplantation.

Andrew Singer

Andrew L. Singer, M.D., Ph.D.

Andrew L. Singer is an assistant professor of surgery and surgical director of kidney transplantation at The Johns Hopkins University and Hospital. He received his medical degree with honor as well his Ph.D. in Immunology from the University of Pennsylvania. Singer completed his general surgical training and a fellowship in multiorgan transplantation at The Johns Hopkins Hospital. He has participated in efforts to expand live-donor renal transplants, including paired kidney exchange and desensitization strategies.  His basic science research focuses on molecular mechanisms of alloreactivity and novel strategies for immune modulation.

Mohamad Allaf

Mohamad Allaf, M.D.

Mohamad Allaf is an assistant professor of urology and biomedical engineering at Johns Hopkins’ Brady Urological Institute and director of minimally invasive and robotic surgery at The Johns Hopkins Hospital. He joined the faculty after receiving his undergraduate and medical degrees from The Johns Hopkins University its School of Medicine, respectively and completing his residency and advanced training in urology at Johns Hopkins. His main clinical interest is the treatment of kidney tumors and prostate cancer with the least morbidity possible. He specializes in the management of kidney tumors via laparoscopic (total and partial kidney removal) and percutaneous (nonsurgical) approaches. He also has an interest in the careful and active observation of select small kidney tumors.

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The Johns Hopkins Incompatible Kidney Transplant Program