Illinois recorded 348 providers in the latest CMS NPI registry weekly update, representing 3% of the national weekly total. That share places Illinois among the states contributing a notable slice of current registry activity, though NPI records do not confirm hiring, active caseloads or appointment availability. The update lists 148 new records this week and 180 this year; 288 are individuals and 60 are organizations.

ABA credential mix

The credential summary lists 17 BCBAs and 53 RBTs, along with 5 dual-credential providers. These categories overlap: providers holding both BCBA and RBT credentials may appear in both totals, so they are not separate workforce groups. Even with that caveat, the listed RBT count is higher than the BCBA count. Because BCBAs supervise RBTs, this mix raises a question about supervisory capacity as technician participation grows; registry counts alone cannot show how many BCBAs are available to supervise or where they practice. The data also identifies 81 providers with multiple taxonomies, another form of overlap in the classifications.

Demographics and organizations

The listed population includes 242 women (84%), 37 men (13%) and 9 nonbinary providers (3%). These figures cover the full provider set, not ABA professionals alone. Therapediatrics, LLC is the only organization named more than once in the notable-organizations field, with 2 records. Chicago, Orland Park and Naperville are among the top cities, alongside Belleville and Springfield.

Illinois’s broad registry activity includes a larger RBT than BCBA count, suggesting ABA access will depend on maintaining sufficient BCBA supervision as the direct-service workforce develops.