About Our Program

As a research center embedded within Kaiser Permanente’s large and dynamic health care system, our investigators have a unique opportunity to apply scientific expertise to real-world clinical problems, translate findings into practice, and share what we learn with the broader community.

Featured Scientist

Dr. Erin Hahn headshot
Erin E. Hahn, PhD, MPH
Research Scientist I
Division of Health Services Research & Implementation Science

Dr. Erin Hahn is a health services researcher and implementation scientist. Her primary research interests are quality of care in oncology and the implementation of evidence-informed practices. She is particularly interested in the post-treatment care of cancer survivors. Dr. Hahn’s work combines qualitative and quantitative methods. Her research explores variations in care delivery, views and opinions of patients and clinicians, and the association of multi-level factors with health ...


Featured Image of News Story Titled: Exploring links between childhood maltreatment, epigenetics, and mental health

Exploring links between childhood maltreatment, epigenetics, and mental health

Researchers at Kaiser Permanente Southern California and the University of Southern California are teaming up on a new research project to better understand the relationship between child maltreatment, epigenetics, and mental health. Sonya Negriff, PhD, a developmental psychologist with Kaiser Permanente Southern California’s Department of Research & Evaluation, will lead the study along with Ferol ...

Better screening for latent tuberculosis

Investigators in Kaiser Permanente Southern California and Kaiser Permanente Northern California have kicked off a new research project to develop better screening for latent tuberculosis. The project, led by Sara Tartof, PhD, MPH, an infectious disease epidemiologist with the Southern California Department of Research & Evaluation, is funded by the National Institute of Allergy and ...

Launching a multisite clinical trial in the midst of a pandemic

In early March 2020, as it became clear the novel coronavirus was closing in on Southern California, clinical trials leaders from the Department of Research & Evaluation began assessing options for an investigational treatment that could be studied through clinical trials. With no approved medications to fight COVID-19, the need for an investigational option to ...

Advancing treatments through clinical trials

Kaiser Permanente’s clinical trials program helps advance treatment for health conditions ranging from heart disease and cancer to infectious diseases, such as HIV and COVID-19. William Towner, MD, FACP, FIDSA, physician director for clinical trials at Kaiser Permanente Southern California, has seen firsthand how clinical trials can contribute to the development of more effective and ...

5 questions for … Dr. Deborah Cohen

Deborah A. Cohen, MD, MPH, an international expert on the health benefit of parks, is the newest scientist at the Department of Research & Evaluation. She began working in the department’s Division of Behavioral Research in January. She previously worked as a senior physician policy researcher at the RAND Corporation. She has served on panels ...


Featured Division

Health Services Research & Implementation Science

Our health services researchers bring together scientific and clinical expertise to find better ways to improve care.

Investigators with the Division of Health Services Research & Implementation Science study how care is delivered, identify opportunities for care improvement, and implement new approaches for organizing and delivering health services. The division brings together scientists with diverse expertise and training, including emergency medicine, epidemiology, health services research, implementation science, internal medicine, nursing, pharmaceutical economics, and pulmonology.

The division is home to the Care Improvement Research Team, a research team embedded within Kaiser Permanente Southern California’s quality improvement ecosystem. The team works closely with clinical and operational partners at Kaiser Permanente Southern California to identify, prioritize, and solve problems related to quality and affordability. Its goal is to reduce unnecessary practice variation, improve affordability, and transform care.