Alexander Brenner, MD, Psychiatrist in Chicago, Illinois

Alexander Brenner, MD, provides compassionate, evidence-based psychiatric care for adults and seniors across Illinois through LifeStance Health. He partners with patients to clarify diagnoses, stabilize symptoms, and create practical treatment plans that support long-term mental wellness. Serving individuals throughout IL, Dr. Brenner offers comprehensive medication management and substance abuse medication management tailored to each person’s goals, health history, and daily life. Dr. Brenner specializes in the treatment of ADHD, mood disorders such as depression and bipolar disorder, and alcohol and drug use issues. He understands how conditions like anxiety, trauma, OCD, and psychosis can disrupt relationships, work, and overall quality of life. He approaches each case with both clinical precision and genuine respect for the individual’s experience. His work integrates psychiatric evaluation with ongoing medication management to ensure safety, effectiveness, and measurable progress. In addition to medication-focused care, Dr. Brenner incorporates Acceptance and Commitment Therapy (ACT), Cognitive Behavioral Therapy (CBT), and mindfulness-based strategies into treatment. This blended approach helps patients build coping skills, increase psychological flexibility, and better manage stress while medications address underlying neurochemical factors. He has experience supporting first responders, members of the LGBTQ+ community, and military veterans, recognizing the unique stressors and cultural factors that may shape their mental health needs. As a prescriber, Dr. Brenner emphasizes collaborative decision-making, transparent treatment options, and careful monitoring of outcomes. Outside of his clinical work, Dr. Brenner enjoys computer building and repair, volleyball, cooking and baking, and gardening.