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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 251–300 of 337Sorted by last name
Rosa RayMarriage & Family Therapist · Ontario, CA 91762NPI 1154672475Kristopher ReyesAddiction Counselor · Ontario, CA 91762NPI 1417489949Tonnette Richardson, MACPAddiction Counselor · Ontario, CA 91762NPI 1598005605Christopher Rios Berrios, LMFTMarriage & Family Therapist · Ontario, CA 91761NPI 1306363817Cindy Rivas, ASWMental Health Counselor · Ontario, CA 91762NPI 1568764660Ana RiveraMental Health Counselor · Ontario, CA 91761NPI 1669610010Marisa RiveraMarriage & Family Therapist · Ontario, CA 91762NPI 1275656548Natalie Rivera, MSWClinical Social Worker · Ontario, CA 91762NPI 1710355227Elizabeth Rivera Rios, MFTIMarriage & Family Therapist · Ontario, CA 91762NPI 1750660965Elizabeth Roberts, MSAddiction Counselor · Ontario, CA 91762NPI 1376772673Delseta RobinsonMarriage & Family Therapist · Ontario, CA 91761NPI 1831233436Nancy RobinsonCounselor · Ontario, CA 91762NPI 1740514132Freddy Rodriguez, BSMental Health Counselor · Ontario, CA 91764NPI 1659657708Joanna RodriguezCounselor · Ontario, CA 91764NPI 1174761274Natascha RodriguezMarriage & Family Therapist · Ontario, CA 91762NPI 1114231552Robert RodriguezMarriage & Family Therapist · Ontario, CA 91761NPI 1720442510Maria Rodriguez Cortes, MAMental Health Counselor · Ontario, CA 91761NPI 1811342132Jennifer RosalesMental Health Counselor · Ontario, CA 91764NPI 1528209533Teresa RosalesCounselor · Ontario, CA 91764NPI 1568702900Zinnia RoseCounselor · Ontario, CA 91764NPI 1639323900Ashley RotterClinical Social Worker · Ontario, CA 91762NPI 1538463658Soniz RuizMental Health Counselor · Ontario, CA 91764NPI 1346685203Cristina Ruiz MazonMental Health Counselor · Ontario, CA 91764NPI 1689980278Sandra SalasMental Health Counselor · Ontario, CA 91762NPI 1447521398Dominique Salido, LCSWMental Health Counselor · Ontario, CA 91762NPI 1760938385Victor SalkowitzClinical Social Worker · Ontario, CA 91761NPI 1306200316Dana Sandoval, LCSWMental Health Counselor · Ontario, CA 91764NPI 1568687325Paloma SantanaCounselor · Ontario, CA 91764NPI 1528370988Lilia Santos, MSMental Health Counselor · Ontario, CA 91761NPI 1952642480Rosaria Schiro, LCSWCounselor · Ontario, CA 91761NPI 1770602336Aline Scott, LMFTMarriage & Family Therapist · Ontario, CA 91764NPI 1982104998Susan SealsMental Health Counselor · Ontario, CA 91761NPI 1598036998Jessica SecuyaMarriage & Family Therapist · Ontario, CA 91764NPI 1275821175Diana SeifMental Health Counselor · Ontario, CA 91761NPI 1942571344Lisa SelizAddiction Counselor · Ontario, CA 91762NPI 1194874495Martinez SellersMental Health Counselor · Ontario, CA 91764NPI 1538387600Olivia Sevilla, MSWClinical Social Worker · Ontario, CA 91762NPI 1225228349Jed Shafer, LCSWClinical Social Worker · Ontario, CA 91762NPI 1326161795Darnell ShermanMarriage & Family Therapist · Ontario, CA 91764NPI 1538567292Rosa ShettyClinical Social Worker · Ontario, CA 91761NPI 1508125147Bryanna Shirley, LMFTMarriage & Family Therapist · Ontario, CA 91762NPI 1457718629Josefina SierraClinical Social Worker · Ontario, CA 91762NPI 1063781128Kara Silver, LCSWClinical Social Worker · Ontario, CA 91764NPI 1346338969Tanisha SimpsonMarriage & Family Therapist · Ontario, CA 91761NPI 1932687613Jasmine Sims, LCSWMental Health Counselor · Ontario, CA 91764NPI 1972978724Amy Sinkeldam, AMFTMental Health Counselor · Ontario, CA 91762NPI 1114423415Patryc Sinkfield-CountsAddiction Counselor · Ontario, CA 91762NPI 1205220878Karen StokesMarriage & Family Therapist · Ontario, CA 91762NPI 1538338124Shannon StrainAddiction Counselor · Ontario, CA 91764NPI 1407987514Phyllis Stroud, MFTMarriage & Family Therapist · Ontario, CA 91764NPI 1487843132

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