96 marriage & family 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.
96marriage & family therapists
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NPI records don't show insurance, openings or telehealth. Call the office to confirm those before you book.
Marriage and family therapists (LMFT) are licensed clinicians trained to work with individuals, couples and families, with a focus on relationships.
Before you call
Ask whether they're taking new patients, which insurance plans they're in, what a session costs without insurance, and whether they see people by video. You can check any clinician's license with your state licensing board, and their NPI record at the CMS NPI Registry.
How many marriage & family therapists are in Ontario, CA?
The NPI Registry lists 96 marriage & family therapists with a practice address in Ontario. Some work only inside a hospital, clinic or school, and a few may have retired without closing their NPI, so the number seeing new patients is lower.
Do these marriage & family therapists take insurance?
NPI records don't include insurance. Call the office or check your insurer's directory. How coverage works.
How is this list ordered?
Alphabetically by last name. Nobody pays to be listed or to appear higher.
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