Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Addiction (Substance Use Disorder) Counselors in Ontario, CA

107 addiction (substance use disorder) counselors listed in Ontario, California — page 5 of 5.

All addiction (substance use disorder) counselors in Ontario

Addiction (Substance Use Disorder) Counselors in other California cities

Other specialties in Ontario