Find Adult Autism Care Near You

Welcome! My name is Tracy Marsh (she/her), and I’m so glad you found your way to Prosper. I’m a licensed psychologist in California with a doctorate in counseling psychology, and I bring over 25 years of experience in higher education as a university faculty member. I specialize in psychological assessment for a wide range of neurodiverse clients. I understand that taking this step can feel exciting and uncertain, and I’m here to provide a warm, supportive environment where we can explore your unique strengths and needs together.

Hi! I’m Dr. Andrew Mendonsa, a clinical and forensic psychologist licensed in over a dozen states across the U.S. I’ve been working in the mental health field for over 20 years and have extensive experience supporting neurodivergent individuals—particularly autistic teens, adults, and those exploring whether autism may be part of their identity. My approach is neurodiversity-affirming, respectful, and strengths-based. I believe autism is not something to be “fixed,” but better understood, honored, and supported.My interest in autism is both professional and personal: I have neurodivergent family and have spent much of my career helping people who mask or camouflage their traits finally feel seen. I understand how overwhelming or invalidating the world can be, especially for those who have gone undiagnosed or misunderstood for years. Whether you’re seeking clarity, self-understanding, or support for anxiety, burnout, or identity exploration, I aim to create a safe and validating space that respects your lived experience.When I’m not working, I enjoy activities that align with many of my clients’ interests—like retro video games, science fiction, trains, building Lego, puzzles, and exploring nature. I bring a calm, nonjudgmental presence to my work, and I genuinely value the unique perspectives of those I serve.

Hi and welcome! My name is Rebecca and I am a licensed psychologist in California (and soon Colorado). I have specialized training in psychological testing to include Autism, ADHD and differential diagnosis. I am passionate about using psychological measures to better understand how we experience the world. I look forward to working with you!