LifeStream Therapy

About Us

What We Offer

We provide individual, one-on-one therapy for adults and teens. Our areas of specialization are trauma-resilience, psychological wellness and life transitions. Whether it’s divorce, going to college, midlife transition, empty nesters, or the struggles inherent in the life of a teenager, these are times when we need to redefine ourselves or define ourselves for the first time. We are available both in person in Mesa, Arizona and online. 

At LifeStream Therapy, our mission is to empower individuals, enhance relationships, and support community well-being. We’re dedicated to fostering personal growth, resilience, and improved mental health. Our vision is to become a trusted healthcare provider in the community, renowned for our innovative methods in optimizing outcomes for our clients. We aim to create a future where everyone in our community has a clear understanding of mental health needs and access to the highest quality care, alongside opportunities for personal growth and resilience.


  • Aetna
  • BCBS of Arizona
  • UnitedHealthcare/Optum
Thomas Ruderstaller

About Thomas Ruderstaller

Director of Clinical Services

Thomas was born in Salzburg, Austria, grew up in New Jersey, and has lived in Arizona since 2007. He completed his Bachelor’s degree at Drew University and completed his Master’s in Clinical Mental Health Counseling at Argosy University. He has 25 years of experience working in the mental health field, and has been working as an LPC (Licensed Practicing Counselor) since 2015. Thomas has worked for Bayless Healthcare, providing counseling services for at-risk teens and their families, and Crisis Preparation and Recovery as a crisis counselor and outpatient therapist. He draws from various clinical modalities, particularly mindfulness, motivational interviewing, CBT, existential, person-centered, and somatic experiencing. Thomas completed the 3-year training through the Somatic Experiencing Training Institute and became an SEP (Somatic Experiencing Practitioner) in November 2021. For more information on Somatic Experiencing, follow the links below. 


  • Verified by Psychology Today
  • Experienced counselor since 2011
  • Certificate from Somatic Experiencing Training Institute – 2021
  • Attended Argosy University, Masters in Clinical Mental Health Counseling, Graduated 2012

Somatic Experiencing Links

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