Jessica Chubak, PhD

“My research focuses on improving cancer control by finding effective ways to get screened for cancer and to navigate treatment and survivorship.”

Jessica Chubak, PhD

Group Health Research Institute Associate Investigator


Jessica Chubak works to improve cancer diagnosis, treatment, control, and survivorship. She is the Group Health Research Institute (GHRI) principal investigator for the National Cancer Institute's Cancer Research Network. She contributes to several national collaborations that are finding practical, efficient, effective ways to screen for cancer, especially colorectal cancer. She also studies how common medications affect cancer risk and recurrence. Based on a personal interest in how pets positively affect health, Dr. Chubak is studying animal-assisted activities in clinics and hospitals where children get treated for cancer. Dr. Chubak’s methodological research focuses on the use of administrative and electronic health record data.

Dr. Chubak joined GHRI in 2007, bringing expertise in epidemiologic methods, pharmaco-epidemiology, and cancer. Awarded a Fulbright graduate student grant, Dr. Chubak pursued her master's degree in bioethics and health law in New Zealand. Dr. Chubak is an affiliate associate professor in the Department of Epidemiology at the University of Washington School of Public Health. A member of the American Society of Preventive Oncology and the Society for Epidemiologic Research, she also serves as a peer reviewer for a dozen journals, including Journal of the National Cancer Institute, Journal of Oncology Practice, and the Journal of Clinical Epidemiology.

Research interests and experience

  • Cancer

    Epidemiology; colorectal cancer; medication use; survivorship; secondary prevention; quality of life; automated data collection; screening; animal-assisted activities; survivorship

  • Health Services & Economics

    Chronic illness management; translation of preventive care research into clinical practice

  • Medication Use & Patient Safety

    Cancer risk and use of common medications; pharmaceutical outcomes research; validation of pharmacy data resources


Recent publications

Chubak J, Whitlock EP, Williams SB, Kamineni A, Burda BU, Buist DS, Anderson ML. Aspirin for the prevention of cancer incidence and mortality: systematic evidence reviews for the U.S. Preventive Services Task Force [Internet]. Available from

Jones SM, Ziebell R, Walker R, Nekhlyudov L, Rabin BA, Nutt S, Fujii M, Chubak J. Psychometric investigation of benefit finding among long-term cancer survivors using the medical expenditure panel survey. Eur J Oncol Nurs. 2015 Jul 25. pii: S1462-3889(15)30013-2. doi: 10.1016/j.ejon.2015.07.005 [Epub ahead of print]. PubMed

Meenan RT, Anderson ML, Chubak J, Vernon SW, Fuller S, Wang CY, Green BB. An economic evaluation of colorectal cancer screening in primary care practice. Am J Prev Med. 2015;48(6):714-21. doi: 10.1016/j.amepre.2014.12.016. PubMed

Adams KF, Johnson EA, Chubak J, Kamineni A, Doubeni CA, Buist DS, Williams AE, Weinmann S, Doria-Rose VP, Rutter CM. Development of an algorithm to classify colonoscopy indication from coded health care data. EGEMS. (Wash DC). 2015 May 18;3(1):1171. doi: 10.13063/2327-9214.1171. eCollection 2015.


latest news

Group Health’s lifesaving approach to screening for colon cancer takes another step forward

Research shows innovative approach serves health care consumers over long term.

Read it in News and Events.

Healthy Findings blog

Dr. Jessica Chubak and team ROAR: Research on Animal-human Relationships

A study to help kids with cancer get time with pets begins field work, with encouragement from a GHRI interest group.

Read about it in Healthy Findings.