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Phone Service Update

We are experiencing extremely high call volume related to COVID-19 vaccine interest. Please understand that our phone lines must be clear for people with urgent and acute medical care needs. Unfortunately, this means we are unable to accept phone calls to schedule COVID-19 vaccinations at this time. When this changes, we will update this web site. Read more COVID-19 Vaccine Information

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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


Upper Tract Urothelial Cancer team


Kara Lombardo

Kara Lombardo

Research Specialist


  • Heather Chalfin, M.D.
  • Natasha Gupta, M.D.
  • Nikolai Sopko, M.D., Ph.D.

Postdoctoral Fellows

  • Mingxiao Feng, Ph.D.
  • Takuji Hayashi, Ph.D.

Graduate Students

  • Kai Aragaki

Lab Staff

  • Gabriel Epstein, Research Technologist
  • Bridget McGuire, Research Technologist
  • John "Jack" Mountain, Lab Manager, Research Technologist

Support Staff

  • Talen Watson, Senior Administrative Coordinator, Assistant to the Director
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