The Bay Area has 313 providers in the latest CMS NPI registry weekly update, equal to 3% of the national weekly total. That concentration points to substantial regional provider activity, though NPI registrations do not confirm whether a provider is currently practicing, taking patients or delivering ABA. The update lists 160 new providers this week and 188 this year.

ABA Credential Mix

The registry reports 23 BCBA providers and 139 RBT providers, plus 4 dual credentials. Dual BCBA-and-RBT providers are included in both credential counts, so these categories overlap and should not be read as separate workforce shares. The much larger RBT count suggests a workforce weighted toward direct-care roles, with a smaller BCBA pool for assessment, treatment planning and supervision. The figures imply a potential supervision-capacity constraint, but do not establish actual caseloads or availability. The registry also records 74 providers with multiple taxonomies; that count may overlap with the credential categories.

Workforce Demographics

Women account for 211 providers, or 71%; 51 are men (17%) and 34 are nonbinary (11%). No notable organizations are identified as appearing multiple times in the supplied data. Concord leads the listed cities with 44 providers, followed by San Jose with 35, San Francisco with 32, Oakland with 20 and Hayward with 20. The registry counts 296 individuals and 17 organizations, reflecting a provider base recorded primarily as individual registrations.

Overall, the Bay Area’s sizable provider count and RBT-heavy credential mix suggest broad direct-care activity, while BCBA supply remains central to how much supervised ABA care can be delivered.