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, Ziebell R, Greenlee RT, Honda S, Hornbrook MC, Epstein M, Nekhlyudov L, Pawloski PA, Ritzwoller DP, Ghai NR, Feigelson HS, Clancy HA, Doria-Rose VP, Kushi LH. The Cancer Research Network: a platform for epidemiologic and health services research on cancer prevention, care, and outcomes in large, stable populations. Cancer Causes Control. 2016 Sep 17 [Epub ahead of print] PubMed

Drescher CW, Beatty JD, Resta R, Andersen MR, Watabayashi K, Thorpe J, Hawley S, Purkey H, Chubak J, Hanson N, Buist DS, Urban N. The effect of referral for genetic counseling on genetic testing and surgical prevention in women at high risk for ovarian cancer: results from a randomized controlled trial. Cancer. 2016 Jul 22. doi: 10.1002/cncr.30190. [Epub ahead of print]. PubMed

Klabunde CN, Zheng Y, Quinn VP, Beaber EF, Rutter CM, Halm EA, Chubak J, Doubeni CA, Haas JS, Kamineni R, Schapira MM, Vacek PM, Garcia MP, Corley DA on behalf of PROSPR consortium. Influence of age and comorbidity on colorectal cancer screening in the elderly. Am J Prev Med. 2016 Jun 15. pii: S0749-3797(16)30127-1. doi: 10.1016/j.amepre.2016.04.018. [Epub ahead of print].

Nekhlyudov L, Walker R, Ziebell R, Rabin B, Nutt S, Chubak J. Cancer survivors' experiences with insurance, finances, and employment: results from a multisite study. J Cancer Surviv. 2016 Jun 9. [Epub ahead of print]. PubMed


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.