Massachusetts recorded 246 providers in the latest CMS NPI registry weekly update, representing 2% of the national weekly total. The state added 133 new providers this week, a substantial burst of registry activity relative to its overall count. The concentration signals an active and expanding behavioral health market, though the registry includes a broad mix of clinicians, agencies and specialties rather than ABA providers alone.

Credential Mix

The registry reports 13 BCBA credentials and 49 RBT credentials, along with 2 dual BCBA-RBT credentials. These categories overlap: the dual-credentialed providers are counted in both credential groups, and credential fields are not mutually exclusive with taxonomy categories. The broader dataset also includes social workers, mental health counselors, speech-language pathologists and other professionals. Even with that limitation, the RBT-to-BCBA pattern points to a substantially larger direct-service workforce than supervisory workforce. Because BCBAs oversee RBTs, develop treatment plans and provide clinical direction, the mix suggests that supervision capacity may become a constraint as ABA staffing expands. Thirty-six providers have multiple taxonomies, further underscoring that registry categories can describe overlapping roles.

Demographics and Provider Activity

Massachusetts lists 217 individuals and 29 organizations. Gender data identifies 172 female providers, 36 male providers and 9 nonbinary providers, corresponding to 79%, 17% and 4%, respectively. The notable-corporations field is empty, so no organization appears multiple times there; the update does not point to identifiable activity from major multi-state ABA chains. Boston, Brockton, Worcester, Springfield and New Bedford are the leading cities listed for activity.

The registry’s strong RBT presence across Massachusetts suggests potential growth in ABA’s direct-service workforce, while the smaller BCBA count highlights the need to build supervisory capacity to improve access.