The Inland Empire has 159 providers in the latest CMS NPI registry weekly update, representing 2% of the national weekly total. The registry records 92 new providers this week and 105 this year; 143 are individuals and 16 are organizations. That concentration points to substantial provider activity in the region, though NPI listings do not confirm active practice, service availability or ABA delivery.

ABA Credential Mix

The registry lists 83 RBT providers and 7 BCBA providers, with no dual BCBA-and-RBT credentials reported. These credential counts may overlap with other credentials and taxonomies, so they are not mutually exclusive workforce shares. The larger RBT count compared with the BCBA count suggests a much deeper listed direct-care workforce than supervisory pool. Because BCBAs supervise RBTs, that imbalance may make supervisory capacity a constraint as technician availability grows. The registry also identifies 20 providers with multiple taxonomies, another reason not to treat categories as separate slices of the workforce.

Workforce Demographics

Women make up 104 providers (73%), men 21 (15%), and nonbinary providers 18 (13%). The reported percentages total more than 100% because of rounding. No notable organization appears multiple times in the data. Riverside leads the listed cities with 36 providers, followed by Ontario with 12; Rancho Cucamonga and San Bernardino each have 11, while Temecula has 10. No corporate headquarters skew is flagged for these city counts.

The update suggests broad provider activity across the Inland Empire, but the small listed BCBA pool relative to RBTs points to supervisory capacity as a key factor in expanding local ABA access.