As of December 31, 2021

Investigators & staff

  • 33
    Full-time research scientists
    19 of our scientists are also on faculty of the Kaiser Permanente Bernard J. Tyson School of Medicine.
  • 300+
    Physician researchers
    Includes 88 clinical trials principal investigators and 240+ 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.
  • ~450
    Active clinical trials protocols
    Hundreds of physicians participate in research as collaborators and clinical trials investigators. 2,800+ patients enrolled in clinical trials across 30 therapeutic areas.
  • 575+
    Journal articles published

Southern California Research Environment

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  • Facilities
    15 medical centers
    236  medical offices (including retail or employer clinics)
  • Lab & Pharmacy Services
    22.3 million outpatient prescriptions filled
    11.8 million prescriptions filled by mail order
  • Physicians & Staff
    7,800+ physicians
    75,000+ employees  (technical, administrative, nurses, and nonphysician caregivers)

Southern California Member Population

Click to Show Description of Member Population Demographics

The graphic above shows the Kaiser Permanente Southern California member population at the end of 2021, 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

  • 88%
    remain after 1 year.

  • About 78% remain
    after 3 years.

  • Approximately 71%
    remain after 5 years.

Funding Overview

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

Total research expenditures

Total in 2021: $83 million
Federal grants: $27.6 million
Industry contracts: $31.3 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 2006 through 2021. Funding for research at Kaiser Permanente Southern California has grown from $13.3 million in 2006 to $83 million in 2021.