An NCI-designated Comprehensive Cancer Center

Marianna Koczywas, M.D.

Medical Oncologist
Clinical Expertise
  • Hematology
  • Thoracic Oncology
Research Focus
  • Thoracic Oncology
Clinical Professor, Department of Medical Oncology & Therapeutics Research
Other Languages Spoken
  • Russian

Clinical Teams

  • Head and Neck Cancers and Oral Cancer
  • Lung Cancer and Thoracic Oncology
  • Mesothelioma
“Dr. K.. never gave up on me... She gave me hope when it was hopeless, she gave me options when I needed them, she gave me hugs when I needed them and saw me through some really difficult times.”  -  Patient
Year after year, Marianna Koczywas, M.D., is named one of America's Top Doctors by Castle Connolly.
Born in Poland, Dr. Koczywas received her medical degree from the Medical Academy of Lodz. She joined City of Hope in 1997 as a fellow in the Department of Medical Oncology, becoming a staff physician in 2001.
Dr. Koczywas is heavily involved in research and clinical trials, searching for more effective drug therapies for lung cancer. She has published extensively and is a strong advocate of incorporating palliative care into cancer treatment programs.


City of Hope Comprehensive Cancer Center, 1500 East Duarte Road

Duarte, CA 91010

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