A middle-aged man with curly dark hair, glasses, and a beard, dressed in a white button-up shirt, sitting on a black leather chair with a plain white wall background.

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

Book a free 15 minute consultation to assess your specific concerns.

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

  • Executives, entrepreneurs & founders who feel overwhelmed by multiple demands, expectations, and responsibilities

  • 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

What you should know before you start

A woman sitting on a beige couch inside a home, holding a smartphone and engaged in a video call with a man visible on the screen.

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.

Book a Call With Dr. Shapiro

Testimonials

  • "Dr. Shapiro has been awesome since the first time I had an appointment. His demeanor makes it very easy to talk about things that are normally difficult to discuss. His approach to my issues has been greatly beneficial. I have returned to him recently with an issue and he is guiding me through the healing process. Very highly recommend Dr. Shapiro. Second to none."

  • "Dr. Shapiro saved my life, and my marriage. I was at rock bottom when I walked into his office. I am now 7 years clean, still happily married, and raising my 3 kiddos! As a Marine I thought I could handle any problem... I was wrong. If he can help me get to where I am, please trust that he can help you. Thanks again Doc!"

  • “Dr. Shapiro was remarkably effective in guiding me out of the darkest period in my life. I’d been successfully treated for depression with traditional medications for most of my adult life (over 20 years) but became Treatment Resistant. My psychiatrist prescribed ketamine treatment which pulled me away from the edge thankfully, but in the aftermath, I needed more to help me fully engage in life, joy, all of my emotions. I’ve been to many therapists over the years, so I found Dr. Shapiro (Larry) very refreshing in his directness, decisiveness, and deeply felt expressions of empathy. He had particular understanding of my challenges dealing with autoimmune disease and chronic pain. Despite being separated by a screen, I felt that Larry truly saw me, understood me…and I trusted him as he challenged me. I only needed his help for a short period, considering everything that we dealt with in that time. It was incredibly efficient. And I continue to work on the things in my life that he helpfully and assertively underlined for me. Thank you Larry.”