The DC/Baltimore Corridor recorded 274 providers in the latest CMS NPI registry weekly update, representing 3% of the national weekly total. The update lists 128 new providers this week and 152 new providers this year. The records include 232 individuals and 42 organizations, signaling a substantial, active regional market spanning Washington, Maryland and Northern Virginia. NPI volume does not necessarily equal staffed locations, active caseloads or available appointments.

ABA Credential Mix

The registry identifies 16 BCBAs and 79 RBTs, with 2 dual-credentialed providers holding both BCBA and RBT credentials. Those categories overlap, so the dual-credentialed providers are included in both credential counts and should not be added as a separate, mutually exclusive group. The RBT-heavy mix points to a large direct-care workforce, while the smaller BCBA pool suggests that supervision capacity could remain a constraint as clinics expand. The registry also reports 51 multi-taxonomy providers; credential and taxonomy categories likewise overlap.

Workforce Demographics

Women account for 171 providers, or 74% of the reported workforce. Men account for 33 providers, or 14%, and nonbinary providers account for 28 providers, or 12%. Mind-4-Concepts Outpatient Mental Health LLC appears multiple times, with 2 records. Washington leads the listed cities with 52 providers, followed by Baltimore with 47; Columbia has 15, while Gaithersburg, Alexandria, Silver Spring and Towson each have 13. The pattern suggests broad ABA workforce growth, but access will depend on converting RBT growth into services supported by sufficient BCBA supervision.