Clinics and urgent care in Ontario, CA
10 clinics. Urgent care center: 10.
- American Current Care of California, a Medical Corporation(909) 390‑2799Urgent care center · 1101 S Milliken Ave Ste C
- Brightora Group Inc(253) 419‑0948Urgent care center · 1221 N Vineyard Ave Apt 30
- Consultation Hub LLC(929) 684‑6656Urgent care center · 1221 N Vineyard Ave Apt 30
- Crestova Groups Inc(253) 419‑0948Urgent care center · 1221 N Vineyard Ave Apt 30
- Grace Renovation LLC(929) 684‑6656Urgent care center · 1221 N Vineyard Ave Apt 30
- Kan Gems LLC(929) 684‑6656Urgent care center · 1221 N Vineyard Ave Apt 30
- Nagasamudra S Ashok MD Inc(909) 949‑9299Urgent care center · 1520 N Mountain Ave Bldg F Suite 128
- Prestige Medical Clinic and Urgent Care Inc(833) 755‑2273Urgent care center · 2219 S Mountain Ave
- Ram Utility LLC(929) 684‑6656Urgent care center · 1221 N Vineyard Ave Apt 30
- Sterling Edges LLC(929) 684‑6656Urgent care center · 1221 N Vineyard Ave Apt 30
Nearest emergency rooms
- San Antonio Regional Hospital5.2 mi · Upland, CA
- Chino Valley Medical Center5.4 mi · Chino, CA
- Montclair Hospital Medical Center6.6 mi · Montclair, CA
Common questions
How many clinics and urgent care are in Ontario, California?
Our directory lists 10 clinics in Ontario: American Current Care of California, a Medical Corporation, Brightora Group Inc, Consultation Hub LLC, Crestova Groups Inc, Grace Renovation LLC, Kan Gems LLC, Nagasamudra S Ashok MD Inc, Prestige Medical Clinic and Urgent Care Inc, Ram Utility LLC and Sterling Edges LLC.
Where is the nearest emergency room to Ontario?
Hospitals that list emergency services in Medicare data, near Ontario: San Antonio Regional Hospital, Upland (5.2 mi), Chino Valley Medical Center, Chino (5.4 mi) and Montclair Hospital Medical Center, Montclair (6.6 mi). In a medical emergency, call 911.
Rural health clinics are clinics in rural areas certified by Medicare to offer outpatient primary care. Urgent care centers treat illnesses and injuries that need care soon but are not emergencies, usually without an appointment. For chest pain, trouble breathing, signs of a stroke or a serious injury, call 911.
Sources: CMS Rural Health Clinic Enrollments (updated 2026-10-19, retrieved 2026-11-13); NPI Registry monthly file, NPPES (updated 2026-11-01, retrieved 2026-11-07). Methodology