Karen Wernli, PhD, is a cancer epidemiologist and health services researcher whose work focuses on incorporating patient-centered outcomes to improve cancer care along the cancer care continuum, from prevention to survivorship. Her works spans several types of cancer, including lung, breast, and colorectal, and also explores the impact of cancer in special populations, such as adolescents and young adults. Her research strives to answer critical questions at the confluence of patients’ needs and clinical priorities. Overall, her research has resulted in approximately $30 million in research funding as principal investigator (PI) or site PI, more than 125 peer-reviewed publications (h-index 35), and more than 85 presentations at national conferences, symposia, and other public venues.
Dr. Wernli is a leader in multilevel intervention studies to improve lung cancer screening. She is currently conducting a pragmatic clinical trial funded by the National Cancer Institute (NCI) to test 2 multilevel interventions to improve adherence to annual lung cancer screening at Kaiser Permanente Washington (R01CA262015). Study interventions were developed using a mixed-methods approach — including patient and stakeholder engagement and human-centered design methods — to determine gaps for interventions, relevant features of interventions, and design concepts. Further, Dr. Wernli is also leading a pilot grant from the Alliance for Clinical Trials in Oncology to develop interventions to improve timely follow-up after a positive lung cancer screening scan. She is cancer care delivery research lead for the Kaiser Permanente Washington NCI Community Oncology Research Program (NCORP).
Dr. Wernli is a leader in the use of breast imaging in women with prior breast cancer, including in the use of breast magnetic resonance imaging (MRI). Dr. Wernli recently completed a Patient-Centered Outcomes Research Institute (PCORI) project that compared breast MRI to mammography for women already treated for breast cancer. Called Surveillance Imaging Modalities for Breast Cancer Assessment (SIMBA), the study used data from the Breast Cancer Surveillance Consortium (BCSC) and engaged patients and stakeholders to determine the best information for patient and physician decision-making. Dr. Wernli’s team translated that information into a new decision aid for breast cancer survivors. PCORI has recognized this work nationally and pointed to SIMBA as a model for effective patient engagement.
Dr. Wernli’s other breast cancer projects include collaborating with Natasha Stout, PhD, from Harvard University on an NCI-funded study to examine trends and outcomes related to the mandatory notification of breast density that has been enacted in many states. She also led research to determine temporal trends in the use of breast MRI over 10 years, based on indication for the scans. The analysis relied on national claims-based data across all 50 states.
Dr. Wernli is leading patient-centered research in adolescent and young adult (AYA) populations. She is a project co-lead with Kaiser Permanente Southern California researcher Erin Hahn, PhD, MPH, and Veterans Affairs researcher Neetu Chawla, PhD, MPH, in an NCI-funded project to evaluate health service utilization in early survivorship for AYA populations. The research is intended to identify multilevel gaps in health care utilization in AYA early-cancer survivors for forthcoming interventions. Previously, Dr. Wernli launched the Clare Project with KPWHRI researchers, including Marlaine Figueroa Gray, PhD, to understand patient, caregiver, and provider perspectives regarding medical decision-making for patients with advanced cancer. Using novel methods, all perspectives were garnered through social media recruitment. With NCI-funding, she has evaluated temporal trends and regional variation in end-of-life care in AYA cancer populations using national claims-based data.
Finally, Dr. Wernli is expanding her research expertise in clinical research studies beyond oncology clinical trials. She is principal investigator of a multisite study of flu and COVID-19 vaccine effectiveness funded by the Centers for Disease Control and Prevention from 2022 to 2027. Her study team is annually enrolling about 1,200 participants with flu-like symptoms into her research.
Dr. Wernli is a member of the American Society for Preventive Oncology, the Society for Epidemiologic Research, the American Society for Clinical Oncology, and the American Association for Cancer Research. She is an affiliate professor of epidemiology and health systems and population health at the University of Washington and a professor of health system science at the Kaiser Permanente Bernard J. Tyson School of Medicine.
Breast, lung, colorectal, ovarian, skin, and endometrial cancer; screening and surveillance; survivorship; patient-centered care; biostatistics; low-dose CT (LDCT); mammography; surveillance imaging; breast magnetic resonance imaging (MRI); systematic reviews; multilevel intervention studies; pragmatic clinical trials
Comparative effectiveness research, health outcomes research, patient-centered outcomes, health care quality, implementation science
Cancer screening and surveillance
Patient engagement, stakeholder engagement, qualitative research methods, mixed-methods, human-centered design
Vasavada A, Palazzo L, Luce C, Sanchez M, Triplette M, Ralston JD, Carter-Bawa L, Green BB, Gao H, Li CI, Anderson ML, Su YR, Rogers K, Wernli KJ "It's coming whether we want it to or not": A qualitative exploration of older adults' comfort with and perceptions of technology and digital health 2025 Nov 19 doi: 10.21203/rs.3.rs-8001649/v1. Epub 2025-11-19. PubMed
Chung JR, Price AM, Zimmerman RK, Moehling Geffel K, House SL, Curley T, Wernli KJ, Phillips CH, Martin ET, Vaughn IA, Murugan V, Scotch M, Saade EA, Faryar KA, Gaglani M, Ramm JD, Williams OL, Walter EB, Kirby MK, Keong LM, Kondor R, Ellington SR, Flannery B Influenza vaccine effectiveness against medically attended outpatient illness, United States, 2023-24 season 2025 Nov 6;81(4):e184-e191 doi:10.1093/cid/ciae658. doi: 10.1093/cid/ciae658. Epub 2025-01-06. PubMed
Parker K, Heneghan MB, Li QW, Brunson A, Ou J, Kaddas HK, Abrahão R, Chubak J, Wernli KJ, Zebrack B, Hahn EE, Kushi LH, Nichols HB, Keegan T, Kirchhoff AC Identifying clustering in patterns of late effects among survivors of adolescent and young adult hodgkin lymphoma 2025 Nov 3;9(6) doi:10.1093/jncics/pkaf094. doi: 10.1093/jncics/pkaf094. Epub 2025-10-01. PubMed
Carter-Bawa L, Lafata JE, Slaven JE, Monahan PO, Vielma AG, Wernli KJ, Brandzel S, Gao H, Rawl SM Navigating shared decision-making in lung cancer screening: Insights into barriers, training, and referral propensity among clinicians 2025 Nov;140:109303. doi: 10.1016/j.pec.2025.109303. Epub 2025-08-08. PubMed
Louie T, Snidarich M, Hippe DS, Wernli KJ, Palazzo L, Hansell L, Brown M, Coronado GD, Lodhi S, Leone R, DeCell K, Mardesich K, Wysham N, Triplette M A pragmatic pre-post intervention trial to address adherence to lung cancer screening follow-up in community settings (the ACCELL trial): Study protocol 2025 Oct 10;159:108106. doi: 10.1016/j.cct.2025.108106. Epub 2025-10-10. PubMed
Nowalk MP, Balasubramani GK, D'Agostino H, Zimmerman RK, Monto AS, Martin ET, Nguyen HQ, Gaglani M, Mamwala M, Tartof S, Lewin BJ, Wernli K, Wickersham B, Talbot HK, Grijalva CG, Chung JR, Flannery B, US Flu VE Network Investigators Does home COVID-19 testing bias COVID-19 vaccine effectiveness estimates? 2025 Sep 11 doi: 10.1016/j.amepre.2025.108096. Epub 2025-09-11. PubMed
Wernli KJ, Anderson ML, Palazzo L, Luce C, Bezman N, Chin M, Gao H, Ralston JD, Rogers K, Su YR, Triplette M, Carter-Bawa L, Vasavada A, Jordan M, West M, Boler S, Green BB Effectiveness of health communication intervention to improve knowledge on timeliness to return for annual lung cancer screening: The Larch Trial 2025 Sep 10 doi: 10.1016/j.chest.2025.07.4111. Epub 2025-09-10. PubMed
Hahn EE, Haupt EC, Chawla N, Osuji TA, Shen E, Smitherman AB, Casperson M, Kirchhoff AC, Zebrack BJ, Laurent CA, Keegan THM, Abrahão R, Ruddy KJ, Chubak J, Nichols HB, Wernli KJ Transitions Within and Use of Outpatient Primary and Oncology Care in Survivors of Adolescent and Young Adult-Onset Cancers 2025 Jun 20 doi: 10.1200/OP-24-00886. Epub 2025-06-20. PubMed
Frutos AM, Cleary S, Reeves EL, Ahmad HM, Price AM, Self WH, Zhu Y, Safdar B, Peltan ID, Gibbs KW, Exline MC, Lauring AS, Ball SW, DeSilva M, Tartof SY, Dascomb K, Irving SA, Klein NP, Dixon BE, Ong TC, Vaughn IA, House SL, Faryar KA, Nowalk MP, Gaglani M, Wernli KJ, Murugan V, Williams OL, Selvarangan R, Weinberg GA, Staat MA, Halasa NB, Sahni LC, Michaels MG, Englund JA, Kirby MK, Surie D, Dawood FS, Clopper BR, Moline HL, Link-Gelles R, Payne AB, Harker E, Wielgosz K, Weber ZA, Yang DH, Lewis NM, DeCuir J, Olson SM, Chung JR, Flannery B, Grohskopf LA, Reed C, Garg S, Ellington S, CDC Influenza Vaccine Effectiveness Collaborators Interim Estimates of 2024-2025 Seasonal Influenza Vaccine Effectiveness - Four Vaccine Effectiveness Networks, United States, October 2024-February 2025 2025 Feb 27;74(6):83-90. doi: 10.15585/mmwr.mm7406a2. Epub 2025-02-27. PubMed
Bi Q, Dickerman BA, Nguyen HQ, Martin ET, Gaglani M, Wernli KJ, Balasubramani GK, Flannery B, Lipsitch M, Cobey S, US Flu Vaccine Effectiveness Network Investigators Reduced effectiveness of repeat influenza vaccination: distinguishing among within-season waning, recent clinical infection, and subclinical infection 2024 Dec 16;230(6):1309-1318. doi: 10.1093/infdis/jiae220. Epub 2024-04-30. PubMed
Well-timed outreach in print and video can boost awareness of repeat screening for lung cancer, study finds.
Researchers Karen Wernli and Erika Kiniry share insights on an exceptional 2024-2025 flu season.
Kudos emphasized dedication to helping coworkers grow, providing opportunities.
Understanding emergency department use among adolescent and young adult cancer survivors can help address care gaps.
Interim data for the 2023-2024 flu season shows that the vaccine has protected all age groups.
How KPWHRI is contributing to better cancer screening and better outcomes for patients.
KPWHRI receives $10 million to continue vaccine effectiveness research for flu, COVID-19, and other respiratory diseases.
Cure, May 10, 2024