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When Therapy Hasn’t Worked There’s a Different Way Forward

Dr. Larry Shapiro, PhD — Clinical Psychologist licensed in Missouri, New Jersey, and 40+ states via PSYPACT

Accepting New Patients

Dr. Larry Shapiro is a licensed clinical psychologist with over 30 years of experience, and the owner of Quantum Behavioral, LLC, a telehealth-only private practice serving adults across 40+ states through PSYPACT. He specializes in cases that haven't responded to conventional treatments — including medication-resistant depression and anxiety. Dr. Shapiro holds a PhD in Clinical Psychology and serves as adjunct faculty at Washington University School of Medicine in St. Louis. His approach is direct and structured, focused on eliminating symptoms rather than managing them indefinitely. Quantum Behavioral is designed for adults who are ready to work, not just talk.

Areas of Expertise

  • Depression, medication-resistant depression, low mood

  • Anxiety, medication-resistant anxiety, worry

  • Life-cycle transitions like marriage, divorce, job loss or change, retirement

  • Consulting for executives, entrepreneurs & founders

  • Combat-related and First Responder-related PTSD

  • PTSD, trauma, childhood neglect, childhood bullying

  • Relationship between Psychology, Behavior, and Artificial Intelligence

  • Managing narcissistic relationships (e.g., domestic partner, adult children of narcissistic parents)

  • Adults with ADHD and Executive Functioning Disorder

  • Ketamine-Assisted Psychotherapy and Psychedelic-Assisted Psychotherapy

Who I Help

Whether you’re a stay-at-home parent, high-achieving executive, a healthcare provider, veteran, first responder, or someone who’s tried multiple treatments without success, I offer therapy that’s grounded in experience and adapted to your needs.

  • Adults who are tired of repeating patterns of disruptive behaviors or attitudes

  • Individuals who are ready to commit to working towards psychological well-being

  • People who are frustrated with traditional approaches toward mental health

  • Individuals who have tried therapy in the past with limited or no results

  • Adults who are interested in controlling their lives and destiny

Want to Learn More About My Process and Who I Help?
Fill out the form below

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What you should know before you start

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Fully Virtual Practice

All sessions are conducted through secure, HIPAA-compliant telehealth. I'm licensed in Missouri and New Jersey and hold a PSYPACT credential that allows me to see clients in 43 states. No office visit required. No geographic limitations.

Private Pay Only

I do not accept insurance. I will provide a “superbill” which has all of the information you will need to submit to your insurance company for out-of-network reimbursement. You may want to contact your insurance company to find out what that benefit is and how to submit for reimbursement.

Frequently Asked Questions

  • Quantum Behavioral, LLC is a private-pay practice. I provide a superbill you can submit to your insurance for possible out-of-network reimbursement.

  • No, but I do understand the importance of family relationships and we may address those concerns in your individual therapy.

  • My approach isn’t just about listening to problems. I take a direct, solution-focused, goal-oriented approach. I do not focus on “coping” because coping sets the bar too low. It implies that the problem will always be there. The goal must be elimination of symptoms.

  • The initial session is $350. Follow-up sessions are $225, and in-person ketamine-assisted psychotherapy is $325.

  • All sessions are conducted virtually to provide flexible and accessible care.

Testimonials