Catherine Brennan


Davis, CA


Get Started The online scheduler will suggest the soonest available appointment, which may be with another clinician.

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About Catherine Brennan, MD

Dr. Catherine Brennan is a board-certified psychiatrist who treats children, adolescents, and adults with autistic spectrum and neurodevelopmental disorders. Dr. Brennan trained residents and medical students at UC Davis and the Sacramento County Mental Health Treatment Center to work with patients who were chronically and severely mentally ill. She volunteers as clinical faculty at UC Davis and co-leads a processing group for psychiatric residents. Dr. Brennan has three grown children and enjoys traveling and yoga. 

Education & Certifications

– Doctor of Medicine (MD) – University of Southern California
– Residency in Psychiatry – California Pacific Medical Center
– Fellowship in Child and Adolescent Psychiatry – UC Davis MIND Institute

Conditions Treated

  • ADHD (Attention-deficit/hyperactivity disorder)
  • Anxiety
  • Autism spectrum disorder
  • Bipolar disorders
  • Co-occurring conditions
  • Conduct/Disruptive disorders
  • Depression
  • Major depressive disorder
  • Mood disorders
  • Obsessive-compulsive disorder (OCD)
  • Panic attacks/Disorders
  • Psychiatry consultation
  • Psychotic disorders
  • Sleep problems
  • Stress/Stress management
  • Trauma/PTSD (Post-traumatic stress disorder)

Insurance Accepted

  • Aetna CA
  • Anthem Blue Cross Commercial CA
  • insurance-6012
  • Cigna Commercial CA
  • Humana Commercial CA
  • Magellan Commercial CA
  • Optum/UBH CA
  • Health Net CA
  • insurance-6093
  • Blue Shield of California
  • Partnership HealthPlan of California

Don’t see your plan? Call us at 855-501-1004 to see if you are covered.

Insurance plans may vary by location and are subject to change.