Cancer Treatment Centers of America

Dennis Citrin, MD, PhD

Medical Oncologist

Midwestern Regional Medical Center

Medical Degree

  • MB - University of Glasgow, Glasgow, Scotland

Internship / Residency

  • Internal Medicine - University of Glasgow

Advanced Degree(s)

  • PhD - University of Glasgow


  • Medical Oncology & Internal Medicine - American Board of Internal Medicine


  • Academic Medicine - University of Glasgow
  • Human Oncology & Medicine - University of Wisconsin-Madison

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Practicing Since: 1977

Dr. Dennis Citrin is a board-certified medical oncologist with more than three decades of experience. His practice is exclusively devoted to patients with breast cancer. Dr. Citrin works with a team of experts to help patients fight breast cancer at Cancer Treatment Centers of America® (CTCA) near Chicago.

Dr. Citrin earned a Bachelor of Medicine degree (MBCHB), which is equivalent to a medical degree (MD), from the University of Glasgow in Scotland. He then completed a residency in internal medicine at the university. Following his residency, he completed three years of breast cancer research, leading to a PhD. Dr. Citrin was then awarded a Medical Research Council fellowship in cancer medicine, which brought him to the University of Wisconsin-Madison, where he completed a fellowship in human oncology.

Over the next 20 years, Dr. Citrin served on the faculty of several medical schools, including the University of Wisconsin, University of California in San Diego, Albert Einstein College of Medicine in Bronx, New York and Northwestern University Medical School in Chicago.

Prior to joining CTCA® in 2004, Dr. Citrin served patients in private practice and as a staff member at Northwestern Memorial Hospital in Chicago.

Dr. Citrin is a member of several professional associations, including the American Society of Clinical Oncology, American Association for Cancer Research and the Chicago Medical Society. His research has been presented at numerous national and international conferences, and has been published extensively in journals such as Cancer and the Journal of Clinical Oncology.

He is also the author of “Knowledge is Power: What Every Woman Should Know About Breast Cancer,” which breaks down the facts about the many types of breast cancer, complemented with real stories from patients who treated under his care at CTCA at Midwestern. In 2016, Chicago Magazine named him to Chicago’s Top Cancer Doctors list for Medical Oncology.

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