Individual provider · Type 1 NPI

Marissa Thirion

Clinical Social Worker · Seattle, WA

NPI number 1023773413 Active

Practice location

4500 9th Ave NE Ste 300
Seattle, WA 98105-4762

Call (206) 608-8251 Map

Mailing address

1532 24th Ave Apt B
Seattle, WA 98122-3199

Other practice locations

  • 12432 Bellflower Blvd, Downey, CA 90242-2806 · (818) 241-6780

Specialties and licenses

TaxonomyCodeLicense
Behavior Technician 106S00000XNone listed
Clinical Social Worker Primary 1041C0700XNone listed

Clinical Social Worker: A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpers…

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About NPI 1023773413

Marissa Thirion's National Provider Identifier is 1023773413, issued on Nov 1, 2021. The primary taxonomy on file is Clinical Social Worker (1041C0700X), and the practice location is in Seattle, WA. The record was last updated on Oct 7, 2026.