Psychologist and Therapist in Portland, Oregon Marie McMahon, Psychologist

License: PsyD

Provider Gender: Female

Ages Served: 0-17

Appointments: In-office and Telehealth

Manages Medications: No, provides therapy & testing only

Psychologist and Therapist in Portland, Oregon Marie McMahon, PsyD

Marie McMahon, PsyD

Dr. McMahon is a licensed psychologist in Oregon and Washington serving children and families experiencing disability. Her dedication to disability, Special Education, and neurodiversity was shaped as the older sibling of an individual who is blind. She has rich clinical experiences including more than 25 years specializing in the Autism Spectrum. Dr. McMahon had a private practice for more than a decade focused on social skills development and behavioral health for children with autism, nonverbal learning disabilities, anxiety, and ADHD. She has spent the past decade within healthcare systems providing developmental evaluations and supports for children and their families. She is delighted to join LifeStance in offering diagnostic and developmental evaluations.



  • Psychological Testing

Insurances Accepted

  • Aetna
  • Behavioral Health Systems (BHS)
  • Carelon (Beacon)
  • Centivo
  • ComPsych
  • Evernorth (Cigna)
  • First Choice
  • Humana
  • Kaiser Permanente (Northwest)
  • MediNcrease Health Plans (MHP)
  • Moda Health
  • MultiPlan (PHCS)
  • Optum (UnitedHealthcare)
  • Pacific Source
  • Partners Direct Health
  • Providence Health Plan
  • Regence BlueCross BlueShield
  • Sana Benefits
  • Tricare West (HealthNet)
  • Trillium


  • Autism Spectrum Disorders
  • Developmental Disabilities


  • English



Please call us at 503-922-6616 to schedule an appointment with Marie McMahon.

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