Lionel Enns PhD, BCBA-D, NCSP


I take my work seriously; myself, not so much. I’m super boring. If you were to drop in on me on any given evening, I’d likely be bingeing a crime drama or comedy with a gigantic cat named Cholo on my lap. When I’m feeling really adventurous, I might go to a Marvel movie with my teenaged daughter or stroll to the market with my youngest. I’m pretty sure I had hobbies before my kids showed up, but now all I can come up with is Netflix, napping and ketogenic diets.

I came to psychology rather late in life, after a career in film/TV production and writing. When my eldest was a toddler, after spending time at the park with her, I realized how much I wanted to know more about child development and psychology. By the time my toddler was in 5th grade, I’d completed my PhD and BCBA at UW.

After a whole mess of training and time assessing and treating kids and families, I think I’ve gotten pretty good at this. The work still humbles me and keeps me on my toes. I know I will never know all that I need to know and depend on the smart, caring people with whom I work.

Lastly, I love my work. While my wife thinks I became a psychologist because it’s a great excuse to wear sportcoats (alright, well that’s kind of true), I truly enjoy problem solving with families. I can’t believe how fortunate I am to spend time with such interesting people


By the time a parent has picked up the phone and reached out to me, he or she probably feels as if they’re in a state of crisis, with problems that extend beyond their current abilities. I like to think I offer a compassionate, thoughtful, centered approach to helping people solve these problems and get their lives back on track.

Life is complicated, and my treatment reflects this. Each individual – parent, child, adult – deserves to be considered for their unique qualities. This often requires thinking outside the box and developing strategies that are far ranging. As such, I blend relational, cognitive behavioral, behavioral and play therapies together, depending on specific needs. I also depend heavily on parents to help support child-based services.

When considering an individual’s challenges, I think it’s critical to think about social systems that support or disrupt behaviors.  I don’t think there’s one magical way to solve problems for the children and adults I see.

Because of my unique training and interests, I see many children, adolescents and adults on the Autism spectrum. I think they’re often poorly understood and need treatment that differs from typical psychotherapy. They first have to be understood as people before coping skills can be taught and practiced. Taking a straightforward approach rarely works, and I enjoy the challenge of meeting each person’s needs. If I have a subspecialty, I’d say it’s assessing and working with girls on the spectrum. If children with Autism are poorly understood in general, I’d say females present even more challenges, both diagnostically and therapeutically.

I assess and treat a wide range of ages and challenges. I work with very young children (sometimes as young as 18 months) and also see adults. I assess and treat:

  • Attention Deficit Disorders
  • Autism Spectrum Disorders
  • Behavioral challenges
  • Internalizing challenges (e.g., anxiety, depression, OCD, phobias)
  • Learning disorders and executive functioning challenges
  • More impacted mental health challenges

In Network Provider for Premera Blue Cross only

I’ve also had the privilege of working with multiple school districts across the state of Washington and also perform the following school-based-services:

  • Behavior Intervention Plans
  • Functional Behavior Assessments (FBAs)
  • Independent Education Evaluations (IEEs)

I look forward to meeting you and your family and solving these challenges in a thoughtful, cautious, team-based approach.



I work with many of the educational and psychological communities in and around the Seattle area. This gives me access to a wealth of professional knowledge, experience and support when providing services to children and families.

I have 14 years of experience as an educator and psychologist working with children, families and professional staffs from a wide range of institutions from non-profits to university settings, schools, clinics and other private organizations.


  • Doctor of Psychology - University of Washington, 2012
  • Bachelor's Degree - Pomona College, 1987


  • Child Psychologist - MOSAIC Rehabilitation  Nov. 2013 - Aug. 2017
  • BCBA Clinical Supervisor/Director - A.P.P.L.E Consulting, LLC Jun. 2011 - Oct. 2013
  • School Psychologist  - University of Washington
  • Clinical Child Psychology Intern - Lifespan Psychological Services Oct. 2011 - Sept. 2012


  • National Association of School Psychologists
  • Washington State Association of School Psychologists