Mark Sitarik, MD

Provider Biography

Dr. Mark Sitarik is a board-certified medical oncologist. As a founding member of the Boulder Rocky Mountain Cancer Centers office, Dr. Sitarik is well-known in the Boulder area for his expertise. His practice emphasis includes breast cancer, colorectal cancer, lung cancer, urological cancers, and blood cancers including leukemia, lymphoma, and multiple myeloma. Dr. Sitarik has built a strong connection with other cancer specialists such as surgeons, radiation oncologists, pathologists, and radiologists. His participation in multiple weekly tumor boards with these other specialists is critical to his patients’ care. Through sharing their expertise and reviewing cancer cases, these experts will determine the most ideal cancer treatment strategy for the patient. Dr. Sitarik’s partnership with US Oncology provides him immediate access to the most cutting-edge therapies and current clinical research trials. The hallmark of his practice is to provide his patients the best care available.