Kaiser Permanente's Division of Research (DOR) is one of the nation’s largest research facilities outside of a government or university setting. Our studies cover a wide range of clinical topics, including cardiovascular disease, cancer, diabetes, substance abuse, mental health, maternal and child health, and women’s health. Our research addresses broad issues, including the role of genes and the environment in health, the influence of behavior on disease prevention and chronic illness management, drug safety, health care policy, health services delivery, and disparities.
The Division is currently home to 75 research scientists and staff scientists, 17 research fellows, and more than 674 employees. The DOR also has 46 adjunct investigators from within Kaiser Permanente Northern California (KPNC) and other academic institutions. DOR’s scientists are involved in 612 ongoing research projects and the KPNC Clinical Trials Program supports and guides 326 active clinical trials following 3,917 members. Since 2000, DOR researchers have published more than 8,100 peer-reviewed articles, and across all KPNC researchers there were more than 1,000 papers published in 2025 alone.
Acadia Healthcare is a leading provider of behavioral healthcare in the United States and the largest stand-alone behavioral healthcare company in the country.
Headquartered in Franklin, Tennessee, Acadia operates a national network of 279 facilities spanning 40 states and Puerto Rico, where approximately 25,000 employees care for more than 84,000 patients each day.
This community of care is united by a shared purpose to Lead Care With Light® and a mission to provide compassionate care that improves lives, inspires hope and elevates communities. Our mission comes to life across the continuum of behavioral healthcare, from acute inpatient hospitals and specialty treatment facilities to residential treatment, outpatient programs and comprehensive treatment centers.
Through evidence-based treatment and clinical programming, Acadia serves people of all ages experiencing mental health and substance use disorders.
Company Structure
Acadia Healthcare Company, Inc. is a holding company with subsidiaries that conduct healthcare and management operations. The terms “Acadia,” “Acadia Healthcare,” “the company,” “we,” and “our” as used refer to Acadia Healthcare Company, Inc. and its subsidiaries, unless otherwise stated or indicated by context. The terms “facilities,” “centers,” “clinics,” and “hospitals” refer to entities owned, operated, or managed by subsidiaries of Acadia Healthcare Company, Inc. References herein to “Acadia employees” or to “our employees” refer to employees of subsidiaries of Acadia Healthcare Company, Inc.