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Therapists in Ontario, CA

337 therapists with a practice address in Ontario, from the federal NPI Registry. Alphabetical by last name. Tap a name for the address, phone number and NPI record.

337therapists
7pages

NPI records don't show insurance, openings or telehealth. Call the office to confirm those before you book.

Showing 151–200 of 337Sorted by last name
Shelley HultmanMarriage & Family Therapist · Ontario, CA 91762NPI 1285850016Lisa Irey, MSMarriage & Family Therapist · Ontario, CA 91761NPI 1811366065Tracy Isaac, APCCMental Health Counselor · Ontario, CA 91761NPI 1023555158Jake JabbourMental Health Counselor · Ontario, CA 91764NPI 1790931954Valencia JacksonMental Health Counselor · Ontario, CA 91764NPI 1447624606Nima JafariAddiction Counselor · Ontario, CA 91764NPI 1053852459Miracle JanuaryMarriage & Family Therapist · Ontario, CA 91761NPI 1316470263Candace Jimenez-LoganAddiction Counselor · Ontario, CA 91764NPI 1316427784Wendy JohansenMarriage & Family Therapist · Ontario, CA 91764NPI 1770954414Cecilia Johnson, LCSWClinical Social Worker · Ontario, CA 91762NPI 1629191184Debbie JohnsonMental Health Counselor · Ontario, CA 91764NPI 1316198955Zakiya JohnsonMarriage & Family Therapist · Ontario, CA 91762NPI 1104225747Mathew Judd, LCSWClinical Social Worker · Ontario, CA 91764NPI 1417090481Christina KemperClinical Social Worker · Ontario, CA 91761NPI 1225462211Arif KhwajaAddiction Counselor · Ontario, CA 91762NPI 1003963489Mirianne Kirk, BAMental Health Counselor · Ontario, CA 91764NPI 1154676807Hannah Kissick, LCSWMental Health Counselor · Ontario, CA 91762NPI 1740632421Kent KlawerAddiction Counselor · Ontario, CA 91762NPI 1912203092Rachel Lairmore, LMFTMental Health Counselor · Ontario, CA 91761NPI 1518345354Makisha Lawrence, PsyDPsychologist · Ontario, CA 91761NPI 1164869095Rosalina LayayeMental Health Counselor · Ontario, CA 91762NPI 1386894285Gabriela Layseca, MFTMarriage & Family Therapist · Ontario, CA 91761NPI 1972883676Kailyn Le, LCSWClinical Social Worker · Ontario, CA 91764NPI 1538442850Jasmine LeeCounselor · Ontario, CA 91764NPI 1235384876Peggy LeeMarriage & Family Therapist · Ontario, CA 91761NPI 1639453152Charolette LewisMarriage & Family Therapist · Ontario, CA 91761NPI 1912047580Jose Lira SalayandiaMarriage & Family Therapist · Ontario, CA 91762NPI 1831212190Lisa Lliteras, PsyDMental Health Counselor · Ontario, CA 91762NPI 1275790602Nancy Longo, LCSWMental Health Counselor · Ontario, CA 91762NPI 1497113302Marco LopezMental Health Counselor · Ontario, CA 91764NPI 1699081968Yesenia LopezMental Health Counselor · Ontario, CA 91764NPI 1689092926Elisa Lopez-Garcia, LCSWClinical Social Worker · Ontario, CA 91761NPI 1548456346Crystal LuceroAddiction Counselor · Ontario, CA 91762NPI 1770835944Diana LuceroAddiction Counselor · Ontario, CA 91762NPI 1659523751Tina Luis-Brown, LMFTMarriage & Family Therapist · Ontario, CA 91762NPI 1730454638Jennifer Luu, PsyDPsychologist · Ontario, CA 91764NPI 1720166903Katherine Macias-Lopez, LCSWClinical Social Worker · Ontario, CA 91761NPI 1629587480Norma Madrid, MSWMental Health Counselor · Ontario, CA 91762NPI 1588976963Ruth MaganaAddiction Counselor · Ontario, CA 91764NPI 1073601688Ricardo ManciaMarriage & Family Therapist · Ontario, CA 91762NPI 1518151919Leticia Manzo ParishMarriage & Family Therapist · Ontario, CA 91764NPI 1982051991Imelda MaresMarriage & Family Therapist · Ontario, CA 91762NPI 1427336924Philippa MarinerClinical Social Worker · Ontario, CA 91764NPI 1598195976Lorena MartinMarriage & Family Therapist · Ontario, CA 91761NPI 1588854590Viviana Martinez, LCSWClinical Social Worker · Ontario, CA 91761NPI 1245491885Dana MathewsAddiction Counselor · Ontario, CA 91762NPI 1760799233Robin Mccall, LCSWClinical Social Worker · Ontario, CA 91761NPI 1265846877Roy Mcdonald, BSCCounselor · Ontario, CA 91762NPI 1497898399Kimberley Mcginty, LMFTMental Health Counselor · Ontario, CA 91761NPI 1679001457Abraham MendozaAddiction Counselor · Ontario, CA 91762NPI 1457690901

Other provider types in Ontario

Therapists337Psychiatrists5Psychologists12Licensed Counselors169Social Workers79Marriage & Family Therapists96Addiction Counselors51

Back to page 1 · All providers in Ontario

Listings come from the CMS National Plan and Provider Enumeration System (NPI Registry), October 2026 copy. A listing is not a recommendation. Nobody pays to appear here or to rank higher; lists are alphabetical by last name. This page is general information, not medical advice. How we verify

In crisis?Tap to call 988