Psychiatrist in Haverford, Pennsylvania Mark Alter, Psychiatrist

Dr. Mark Alter, MD, helps children, teens, adults, and seniors across Pennsylvania manage complex mental health challenges and achieve lasting emotional well-being. At LifeStance Health, he provides individualized care through medication management and therapy, supporting clients with anxiety, depression, ADHD, and trauma-related concerns. Serving communities throughout PA, Dr. Alter emphasizes a collaborative approach that engages clients and families, empowering them to understand their experiences, strengthen coping skills, and reach meaningful treatment goals.

He is particularly passionate about working with clients who are recently discharged from psychiatric hospitals. Dr. Alter brings expertise in addressing a wide range of conditions, including bipolar disorder, substance use issues, and post-traumatic stress, and he tailors treatment to each client’s needs using evidence-based approaches. His clinical practice integrates strategies such as CBT for insomnia alongside comprehensive psychiatric evaluation and personalized care planning. He works with diverse populations, including LGBTQ+ individuals, men, women, first responders, military and veterans, and clients with developmental or neurological considerations, providing a supportive, affirming environment for growth and recovery.

Dr. Alter emphasizes practical, goal-oriented treatment that aligns with clients’ personal and medical contexts. He collaborates closely with therapists, primary care providers, schools, and community partners when appropriate, ensuring continuity of care and coordinated support. His approach combines clinical expertise with compassion, fostering an environment where clients feel empowered to navigate challenges and develop resilience.

Outside of his clinical work, Dr. Alter enjoys spending time with family, traveling, playing tennis and skiing, exploring neuroscience research, optimizing systems, and investing in real estate.