Medical Director – Cronin, Alameda County, MD
About John
Dr. John R. Knox is a board-certified general psychiatrist and addiction psychiatrist serving as Medical Director at Cronin House and Palm Avenue Detox. He provides clinical leadership for the treatment of substance use disorders and co-occurring mental health conditions, with an emphasis on effective stabilization, clear treatment planning, and sustainable long-term recovery.
Dr. Knox’s clinical focus includes the neurobiology of addiction, trauma-related conditions, mood disorders, and anxiety disorders. His approach integrates psychiatric precision, structured care, and compassionate accountability, while maintaining dignity and discretion for every patient.
He is a strong advocate for medication-based treatment when clinically appropriate, including medications for opioid and alcohol use disorders. Dr. Knox works closely with multidisciplinary teams to support clinical quality, medical decision-making, and program development.
Areas of Focus
Addiction psychiatry
Clinical focus on the neurobiology of addiction and the treatment of substance use disorders.
Co-occurring conditions
Treatment of co-occurring mental health conditions including trauma-related, mood and anxiety disorders.
Medication-based treatment
Advocate for medications for opioid and alcohol use disorders where clinically appropriate.
Education & Credentials
- Doctor of Medicine (MD)
- Board-certified General Psychiatrist
- Board-certified Addiction Psychiatrist
- Medical Director, Cronin House
Where John Works
Cronin House
Adult residential treatment for substance use and co-occurring needs.
Project Eden Adult Outpatient
Outpatient treatment for adults across Alameda County.
Everyone is welcome here
Horizon Treatment Services provides substance use and co-occurring mental health care across the Bay Area. Most services are no-cost or covered by Medi-Cal for those who qualify.
