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COVID-19 Update

Our Team

Our pioneering surgeons, innovative oncologists and world-class researchers use their skills to develop personalized treatment plans for bladder cancer patients. Our bladder cancer experts come from a variety of departments and specialties at Johns Hopkins and are available to add their knowledge and expertise to the care of patients.

Medical Oncologists
Radiation Oncologists
  • Heather Chalfin, M.D.
  • Natasha Gupta, M.D.
  • Nikolai Sopko, M.D., Ph.D.
Graduate Students
  • Bryan Wehrenberg, Research Assistant
Lab Staff
  • John "Jack" Mountain, Lab Manager, Research Technologist
Support Staff
  • Talen Watson, Senior Administrative Coordinator, Assistant to the Director
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