Washington recorded 308 providers in the latest CMS NPI registry weekly update, representing 3% of the national weekly total. The registry added 130 new providers this week, bringing the year-to-date count to 152. Individual providers account for 277 entries and organizations for 31. That concentration places Washington among the more active state markets in the update and signals sustained behavioral health workforce and practice formation, although NPI activity does not confirm open caseloads, hiring capacity or service availability.

ABA Workforce Mix

The registry lists 6 BCBA credentials and 47 RBT credentials, with no dual BCBA-RBT credentials. These categories can overlap with other credential and taxonomy fields and should not be treated as mutually exclusive shares of the provider total. The roughly eight-to-one RBT-to-BCBA pattern points to a much larger direct-service workforce than supervisory workforce. Because BCBAs oversee RBTs, write and adjust treatment plans, and monitor clinical quality, the imbalance may create supervision pressure as ABA providers expand. The absence of dual credentials also suggests limited evidence in this update of movement between the direct-service and advanced clinical roles.

Demographics and Activity

Gender data identifies 194 providers as female, 66 as male and 17 as nonbinary, corresponding to 70%, 24% and 6%. Seattle, Spokane, Tukwila, Bellevue and Everett are the leading listed cities. No notable organizations were flagged as appearing multiple times in the update. The provider mix also spans social work, counseling, speech-language pathology, addiction treatment and behavioral health agencies, indicating that the registry captures a broad behavioral health market rather than an ABA-only workforce.

Washington’s RBT-heavy profile suggests potential direct-service growth, but its small BCBA pool makes supervisory capacity a central constraint on expanding ABA access.