The DC/Baltimore Corridor recorded 519 providers in the latest CMS NPI registry weekly update, representing 5% of the national weekly total. The registry lists 419 new providers this week, a level of activity that underscores the corridor’s importance as a concentrated behavioral health market. The count includes 474 individuals and 45 organizations, so it reflects NPI registrations rather than a direct count of active clinicians, clinics, or available appointments.

ABA Credential Mix

The registry identifies 13 BCBA providers and 383 RBT providers. These categories overlap: 2 providers hold both BCBA and RBT credentials and are counted in each category. Credential and taxonomy groups are not mutually exclusive; 51 providers have multiple taxonomies. The large RBT population points to substantial direct-care staffing, while the much smaller BCBA group indicates a narrower supervisory base. Because BCBAs supervise RBTs and guide treatment planning, that imbalance can make supervisory capacity a constraint on caseload growth even when technician recruitment is strong. Other reported credentials include SLP, LCSW-C and LGPC, reflecting a broader behavioral health workforce alongside ABA personnel.

Workforce Demographics

Women account for 381 providers, or 80% of the reported workforce. Men account for 65 providers, or 14%, and nonbinary providers account for 28 providers, or 6%. Sisters in Action LLC appears 3 times; Care Solutions Corporation and Arise & Shine Health Center LLC each appear 2 times. These repeated registrations may represent separate NPIs or service classifications, not necessarily separate locations. Rockville leads the listed cities with 276 providers, followed by Washington with 44 and Baltimore with 42. The data suggests strong ABA workforce expansion, but continued investment in BCBA supervision will be central to translating RBT growth into broader access.