Assistant Behavior Analyst: how many are there, and how many are in private practice?

National totals

What this specialty covers

An assistant behavior analyst is qualified by Behavior Analyst Certification Board certification and/or a state-issued license or credential in behavior analysis to practice under the supervision of an appropriately credentialed professional behavior analyst. An assistant behavior analyst delivers services consistent with the dimensions of applied behavior analysis and supervision requirements defined in state laws or regulations and/or national certification standards. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing behavior-analytic treatment plans, training and supervising others in implementation of components of treatment plans, and direct implementation of treatment plans.

Reading the sole-proprietor share

For this specialty, 3,028 active records, or 29.0%, are flagged as sole proprietors in NPPES. That field is self-reported and is an imperfect proxy for private practice: it does not by itself show whether an assistant behavior analyst works independently, owns a practice, or delivers services outside an organization.

By state

New NPI registrations by year

Counts reflect the year each NPI was first issued, among records still active today. The final year is partial: this data covers through 2026-01-11.

Data notes

• The sole-proprietor field is self-reported by the provider in NPPES and is an imperfect proxy for private practice.
• A sole-proprietor count shown as <11 is suppressed: the true value is below 11, which could include zero.
• - An NPI record is an identifier, not a guaranteed count of a distinct person, practice, or currently practicing clinician.
• - The primary taxonomy reflects the provider's NPPES classification and may not capture all credentials, services, or practice locations.
• - Enumeration-year counts show when NPIs were first enumerated and should not be read as measures of employment, practice starts, or service volume.
• Providers are counted once, by their primary taxonomy code only.

Source: CMS National Plan and Provider Enumeration System (NPPES) Data Dissemination file, FOIA-disclosable public data under CMS-6060-N. Aggregated by Hero EMR on 2026-08-03; deactivated NPIs excluded; specialty assigned from the primary taxonomy code (NUCC 25.1). Counts below 11 are suppressed. Individual providers are never published. All provider data pages.

Common questions