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. Jaejin An headshot
Jaejin An, PhD
Research Scientist II
Division of Epidemiologic Research
626-564-5906
Jaejin.X.An@kp.org

Dr. Jaejin An is a pharmacoepidemiologist and outcomes researcher whose work focuses on understanding medication utilization, medication adherence, and disease management patterns. She also has interests in drug efficacy, safety, and pharmacoeconomics. Her research has applications for patient quality of care and outcomes.

Dr. An’s clinical focus is in the treatment, prevention, and comorbidity management of cardiovascular diseases, including hypertension, dyslipidemia, atrial fibrillation, ...

Featured Video

Advancing treatments through clinical trials

Over the years, clinical trials have led to amazing advances in treatment—even cures—for devastating illnesses. William Towner, MD, FACP, FIDSA, regional physician director for clinical trials, describes how trials at Kaiser Permanente contribute to the development of more effective and safer treatments for diseases such as HIV, hepatitis C, cancer, and more. (2:15)

News

Featured Image of News Story Titled: Ultraprocessed foods linked to body fat gain in children

Ultraprocessed foods linked to body fat gain in children

Children who ate more ultraprocessed foods showed stronger activity in a part of the brain involved in reward, and that brain response was linked to greater gains in body fat over the following year, a new study found. The study — published October 2026 in JAMA Network Open — followed 46 children ages 7 to ...

No increased stroke risk found after COVID-19 and flu vaccinations

A large multisite study found that bivalent mRNA COVID-19 vaccination, flu vaccination, and same-day administration of both vaccines were not associated with an increased risk of first-ever ischemic stroke. “This study found no evidence of an increased risk of ischemic stroke following bivalent COVID-19 vaccination, influenza vaccination, or receiving both vaccines on the same day,” ...

RSV vaccine protects older adults for at least 3 seasons

An RSV vaccine continued to protect adults aged 60 and older against RSV-related hospitalization and emergency department visits for at least 3 seasons after vaccination, according to a new study by Kaiser Permanente in Southern California. RSV, or respiratory syncytial virus, is a common respiratory virus that can cause serious illness, hospitalization, and even death ...

Five questions for Dr. Casey Luc

Casey Luc, PhD, MPH, an epidemiologist with expertise in HIV epidemiology in underserved communities, is the fifth Centers for Disease Control and Prevention Epidemic Intelligence Service officer to train with Kaiser Permanente Southern California’s Department of Research & Evaluation. Before joining Kaiser Permanente, he served as a health scientist contractor in the Syndemic Infectious Diseases ...

Five questions for Dr. Kevin Yu

Kevin Yu, PhD, is a postdoctoral research fellow in the Department of Research & Evaluation at Kaiser Permanente Southern California. He earned his PhD in health informatics from Northwestern University, where his work focused on pharmacoepidemiology and health informatics. His research focuses on cardiovascular disease and dementia, with a particular interest in target trial emulation ...

Featured Division

Clinician Research

The Division of Clinician Research provides support and resources for researchers who maintain clinical practices while building their own research portfolios. Key goals include fostering collaboration among clinician researchers, expanding research education, and promoting research that has the potential to transform care and improve the health of our communities.

The division, which was established in 2023, provides administrative support to the Regional Research Committee and the Clinician Investigator Program and manages a team of biostatisticians dedicated to physician research. It co-leads the Care Improvement Research Team, a group that brings together clinicians and research scientists to answer questions with the potential to change practice.

The division actively engages with various collaborators throughout the organization and is working to establish an interconnected network of clinicians, scientists, educators, administrators, and leaders who will work together to drive clinically impactful change through research.