Skip to main content
Sign In

University of Colorado Cancer Center

University of Colorado Cancer Center, A National Cancer Institute-designated Comprehensive Cancer Center

Meet Our Doctors & Scientists

Doctors and scientists at the University of Colorado Cancer Center are trying to make a difference in the fight against cancer in their laboratories, clinics, hospitals and every day lives. These individuals care deeply and personally about finding treatments and have devoted their careers to discovering cures for cancer. Read our doctor and researcher stories and be inspired by their dedication.

Theresa Pacheco

Theresa Pacheco, MD

Theresa Pacheco, MD, had a father in health care, an interest in science and a strong stomach when she was a kid in rural Colorado. Those things led her where she is today - part of a University of Colorado Cancer Center team that is working to develop a sunscreen that can sense DNA damage from sun exposure and even repair it.

Meet Dr. Pacheco

Tim Garrington

Tim Garrington, MD

Dr. Garrington about his process of learning to communicate difficult and sometimes devastating news to patients, and about his efforts to teach these skills to residents and fellows at the University of Colorado School of Medicine.

Meet Dr. Garrington

Ana Oton

Ana Oton, MD

At Denver Health, Oton is both doctor and social worker, offering cutting-edge clinical trials but also helping her patients get connected with needed services, and sometimes making legal statements to help bring relatives of deathly ill patients to the country to say their goodbyes.

Meet Dr. Oton

Rajesh Agarwal

Rajesh Agarwal, PhD

After earning a PhD in organic chemistry, a post-doc position in a cancer lab helped Rajesh Agarwal make the transition to cancer science. Now 30 years later, Agarwal is one of the most accomplished scientists looking to naturally occurring compounds for the prevention and control of cancer.

Meet Dr. Agarwal

Tom Purcell, MD

Tom Purcell, MD, MBA

For a distilled description of Tom Purcell’s career path, just reverse the order of his titles. Officially, the University of Colorado Cancer Center’s new executive medical director and associate director for clinical services goes by W. Thomas Purcell, MD, MBA. Historically, however, Purcell’s path was first business, then medicine.

Meet Dr. Purcell

Jana Lomax, PsyD

As a child, Jana Lomax, PsyD, sat at the dinner table listening to her parents’ conversations about the psychological needs of the patients they saw that day. Her father, an urologist, and mother, a nurse, often worried their patients wouldn’t get the support they desperately needed after learning about their cancer diagnosis.

Meet Dr. Lomax

Sonia Okuyama, MD

Sonia Okuyama, MD

As the director of the Cancer Center’s Cancer Information and Counseling Line (CICL), Sonia Okuyama, MD, develops and implements interventions that help patients cope with the many challenges of cancer outside the traditional conception of physical health.

Meet Dr. Okuyama

Clayton Smith, MD

Clayton Smith, MD

Clayton Smith, MD is director of the Bone Marrow Transplant Program at the University of Colorado Cancer Center.

Meet Dr. Smith

Lia Gore, MD, University of Colorado Cancer Center

Lia Gore, MD

Lia Gore, MD, is director of the experimental therapeutics program at Children's Hospital Colorado and associate professor of pediatrics and medicine at the CU medical school

Meet Dr. Gore

Al Barqawi, MD, University of Colorado Cancer Center

Al Barqawi, MD

By his own account, Dr. Al Barqawi is "a simple man." But simple or not, he's a man on the cutting edge of treating prostate cancer - without actually cutting anything.

Meet Dr. Barqawi

Arthur Liu, MD, University of Colorado Cancer Center

Arthur Liu, MD, PhD

Pediatric radiation oncology is the proverbial double-edged sword. On one hand, there are few specialists because there isn't a lot of demand. On the other hand, for the youngest cancer patients, treatment presents challenges only a specialist such as Arthur Liu are equipped to provide.

Meet Dr. Liu

Madeleine Kane, MD, University of Colorado Cancer Center

Madeleine Kane, MD

Twice a month for almost three years, Madeleine Kane, MD, has been catching a 6:30 a.m. flight from Centennial Airport near Denver to care for patients at the San Luis Valley Regional Medical Center in Alamosa, Colo.

Meet Dr. Kane

Doug Thamm, VMD, University of Colorado Cancer Center

Doug Thamm, VMD

Doug Thamm, VMD, grew up with a menagerie of animals. He thought he wanted to be a scientist and a veterinarian, but didn't know exactly how to put the two together. Then at age 23, he was diagnosed with Non-Hodgkin's Lymphoma.

Meet Dr. Thamm