Free and Low-Cost Clinics in Ontario, CA

4 clinics located in Ontario, plus nearby options in surrounding cities. Some clinics may serve only certain counties, ZIP codes, age groups, or patient populations. Contact the clinic to confirm eligibility and availability.

Clinics in Ontario

4 clinics in Ontario. These listings are physically located within the city.

  • Community Health Center — 1129 W. 4th St., Ontario, CA 91762

    Cost not confirmed Hours listed

    Excerpt: Primary Care - Pediatrics, Internal and Family Medicine; Behavioral Health; Family and General Dentistry; HIV Prevention...

  • Ontario Health Center

    Needs confirmation

    Community Health Center — 150 E. Holt Blvd., Ontario, CA 91761

    Cost not confirmed Hours listed

    Excerpt: Reproductive Health; Maternal Health; HIV Services; Pediatrics; Immunizations; TB Skin Testing; Primary Care; Dental

  • Community Health Center — 2680 E. Riverside Drive, Ontario, CA 91761

    Cost not confirmed Hours listed

    Excerpt: Primary Care (adults and children), Behavioral Health, Dental Care

  • Community Health Center — 1556 S. Sultana Avenue, Ontario, CA 91761

    Cost not confirmed Hours listed

    Excerpt: Primary Care (adults and children), Behavioral Health, Dental Care

Nearby Clinics Outside Ontario

7 additional clinics nearby, outside Ontario, shown separately so they are not confused with clinics physically located in the city.

Related directory pages

What to Confirm Before Visiting

Confirm hours, appointment or walk-in policy, new-patient status, services, fees, eligibility, and required documents before traveling.

Clinic counts and information are community-sourced and may change without notice. Always call ahead to confirm hours, cost, eligibility, and services before visiting.