As of December 31, 2023

Investigators & staff

  • 32
    Full-time research scientists
    Twenty of our scientists are also on faculty of the Kaiser Permanente Bernard J. Tyson School of Medicine.
  • 300+
    Physician researchers
    Includes clinical trials principal investigators and sub-investigators, as well as retired and affiliated Southern California Permanente Medical Group physicians.
  • 390+
    Research and support staff
    Includes research project managers and research associates, clinical trials support staff, programmers, biostatisticians, and clinical informatics personnel; and division administration, business office, operations, research IT, program management, and communications staff.
Headquartered in Pasadena, California. Staff and investigators at 30+ locations in Southern California

Projects & publications

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  • 500+
    Active studies
    Throughout Kaiser Permanente Southern California. Projects may include multiple protocols.
  • 350+
    Active clinical trials protocols
    Hundreds of physicians participate in research as collaborators and clinical trials investigators.
  • 650+
    Journal articles published

Southern California Research Environment

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  • Facilities
    16 hospitals
    228  medical offices (including retail or employer clinics)
  • Lab & Pharmacy Services
    24.2 million outpatient prescriptions filled
    12.6 million prescriptions filled by mail order
  • Physicians & Staff
    8,300+ physicians
    84,600+ employees  (technical, administrative, nurses, and non-physician caregivers)

Southern California Member Population

Graphic showing KPSC 2022 membership by age, sex, and race

Click to Show Description of Member Population Demographics

The graphic above shows the Kaiser Permanente Southern California member population at the end of 2023, including total number of members, and percentages by sex, age, and race/ethnicity.

There are more than 4.7 million members in Southern California. 52% are female; 48% are male.


20 years and younger
21 to 39 years
40 to 64 years
65 years and older


Hispanic or Latino
Asian/Pacific Islander
Black or African American
Multiple or other

Southern California membership RETENTION RATES

Funding Overview

Funding for research at Kaiser Permanente Southern California has increased rapidly over the past 15 years.

Total research expenditures

Total in 2022: $101 million
Federal grants: $32 million
Industry contracts: $46 million
Kaiser Permanente provided the remaining funds. (Internal sources include the Kaiser Permanente Community Health program, the Southern California Permanente Medical Group, the Garfield Memorial Fund, and the Center for Effectiveness & Safety Research.)

Click to Show Description of Funding bar graph

The above bar graph shows how much research funding Kaiser Permanente Southern received by type of funder from 2008 through 2022. Funding for research at Kaiser Permanente Southern California has grown from $22 million in 2008 to $101 million in 2022.