Obsessive compulsive disorder - OCD treatment and therapy from NOCD
OCD therapist Diana Matthiessen, Associate Therapist, LMSW, Licensed OCD Therapist

Diana Matthiessen


Associate Therapist, LMSW

Pre-license number: 120894

Under the supervision of Sara Kucker

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I approach treating OCD with a great deal of enthusiasm and compassion. I'm strengths-based and client-centered. If you've shown up for therapy at NOCD, you've already taken a huge step toward getting back to the life you want. I'm mainly here to provide support, encouragement, and knowledge as you choose how you want to live your life. Outside of work, I love baking (mainly cookies), spending time outside, and watching reality TV. My favorite fun fact to share is that I know how to unicycle.

You have come to the right place. This work can be challenging—and it will be worth it. You can get back to doing the things you love.

Get to know Diana Matthiessen

NOCD therapists are trained by our world-renowned clinical leadership team.

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Insurance Coverages

  • Aetna
  • Highmark New York
  • Cigna


New York

Badges and training


These designations signify the therapist's expertise in treating specific mental health conditions, ensuring you receive the personalized care you deserve.


Culteral competencies

We've partnered with Violet, a health equity platform, to offer training to all NOCD therapists. These comprehensive training programs foster professional development and champion inclusivity in the healthcare industry. Learn more.


Languages spoken

  • English

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