Substance Abuse Treatment Facility and State Prison

Main Phone: (559) 992-7100

Physical Address: 900 Quebec Avenue, Corcoran, CA 93212 (Directions)

  • Institution: P. O. Box 7100, Corcoran, CA 93212
  • Inmate Mailing Address:
    • Facility A & B, P.O. Box 5248, Corcoran, CA 93212
    • Facility C, P.O. Box 5246, Corcoran, CA 93212
    • Facility D & E, P.O. Box 5242, Corcoran, CA 93212
    • Facility F & G, P.O. Box 5244, Corcoran, CA 93212

Visiting an incarcerated person: learn how to visit an incarcerated person at our institutions.

Other Resources: explore family & friends resources, including how to contact or send packages to those incarcerated in our institutions.

  • PIA: Food & Beverage Packaging
  • Vocational: Air conditioning and refrigeration; auto body; auto transmission; auto tune-up; building maintenance; electrical works; electronics; masonry; office services; plumbing; small engine repair; welding
  • Academic: Adult Basic Education I, II and III/GED; Behavior Management Unit (BMU); Developmental Disability Program (DDP); Disability Placement Program (DPP); Independent Study; Literacy Lab
  • Other: Religious services; Drug Treatment/Diversion; Alcoholics Anonymous: Narcotics Anonymous

DRP Programs
Integrated Substance Use Disorder Treatment (ISUDT)–Overview
On January 21, 2020, the California Department of Corrections and Rehabilitation (CDCR) and California Correctional Health Care Services (CCHCS) implemented ISUDT.  ISUDT is a comprehensive and evidence-based cross-divisional program with pathways to treatment through DRP Cognitive Behavioral Interventions (CBI) programs referred to as:

CBI-Intensive Outpatient (Medical Classification T1, SOMS assignment code ISI) 2-hours/day, 5-days/week, 52-weeks completion

CBI-Outpatient  (Medical Classification T2, SOMS assignment code ISO) 2-hours/day, 3-days/week, 14-weeks completion

CBI-Life Skills (Medical Classification T3, SOMS assignment code CB2) 2-hours/day, 3-days/week, 29-weeks completion

All participants will be assessed by medical and referred to one of the CBI classes.

Family Liaison Service Specialist
CDCR provides through a contract with a community-based organization an on-site Case Manager as a family reunification liaison for inmates and family members, to assist with an inmates pre-release preparation; and conduct Parenting and Creative Conflict Resolution classes for inmates. Please call the Institution to contact the Family Reunification Liaison.

The California Substance Abuse Treatment Facility is located in the city of Corcoran, situated in the central San Joaquin Valley, against the back drop of the Sierra Nevada Mountains. Corcoran is only a two hour drive from the Central Coast and located half way between Los Angeles, Sacramento, and San Francisco. With the rich culture, prosperous business community, and thriving agricultural industry, you will find a family oriented environment, ideal for work or leisure.

large grass land area for agriculture
Sierra Nevada Mountains on a clear sky

The primary mission of the California Substance Abuse Treatment Facility and State Prison at Corcoran (SATF/CSP) is to protect the public by ensuring those inmates who are remanded to the California Department of Corrections and Rehabilitation (CDCR) remain in custody, until they are scheduled to be released.  CSATF/SP will accomplish this by employing the highest standards of “Correctional Professionalism” in the performance of our duties.

Protect staff by providing the proper equipment and best training that is available in the use of the equipment, and by ensuring staff are informed of Departmental Policy and Procedures, while consistently reinforcing that all behavior must fall within those guidelines.

Protect inmates by ensuring the CSATF/SP properly classify and house them within Departmental guidelines, by holding the inmate population and staff responsible for adhering to Departmental Policies and Procedures, and fairly enforcing all law and regulations.

Provide the inmate population access to the Department’s Disability Placement Program (DPP), Developmental Disabled Program (DDP), medical, dental, and mental health services that meet the applicable standards. Work with medical staff to ensure competent, compassionate, and professional care is provided at all times.

Provide educational, vocational, re-entry and self-help programs that are current by society’s standards that will provide inmates life skills, and work skills that can be used in support of their efforts at reintegration into society.

Encourage public awareness and interactivity through or Citizens’ Advisory Counsel, and facilitating appropriate access by outside agencies, legislators, the media, and public to maintain accountability.

Arthur Guillen portrait

Arthur Guillen was assigned acting Warden at California Substance Abuse Treatment Facility and State Prison (SATF) at Corcoran in July 2026.

Guillen’s career with the California Department of Corrections and Rehabilitation (CDCR) began in 2006 at the CDCR Basic Correctional Officer Academy in Stockton, CA.

After graduating, he reported as a correctional officer at Pleasant Valley State Prison. Guillen was promoted to correctional counselor I in 2008 and correctional counselor II supervisor in 2013. He served in this capacity until he was promoted to correctional counselor III at California State Prison Corcoran (CSP-COR) in 2014.

Guillen continued to expand his leadership experience promoting to correctional captain at North Kern State Prison in 2018, associate warden at CSP-COR in 2023 and chief deputy warden at CSP-COR in 2025.

With dedication and leadership, Guillen has built trust, demonstrated reliability and proven his commitment to the department’s rehabilitative efforts. He continues to execute operations efficiently, solve complex problems proactively and mentor team members to achieve departmental goals.

Portrait of Galloway

Oscar Galloway has served California Correctional Health Care Services (CCHCS) since 2007, when he began his career as an Associate Governmental Program Analyst at Avenal State Prison.

Galloway has served at various institutions in the roles of health program specialist I, correctional health services administrator I, correctional health services administrator II and chief support executive (CSE).

He served as CSE at PVSP from June 2021 until April 2023. Galloway served as Out-of-Class assignment acting CEO, eventually being appointed to CEO.

Galloway transferred to Substance Abuse Treatment Facility (SATF) in 2024 and was appointed to CEO.

He holds a master’s degree in health administration from the University of Phoenix and is a certified correctional health professional through the National Commission on Correctional Health Care.

Local Inmate Family Councils (IFC’s) are a gathering of family and friends of the incarcerated who meet regularly with Wardens to support visiting since keeping strong family connections with loved ones is a powerful rehabilitative tool. These IFC’s promote visiting by clarifying rules and regulations as well as discussing health, education, vocational training, packages, books, and related issues. For more information on connecting with a local IFC, please visit the Statewide IFC website.