Book urgent care & walk-in clinics near me in Ontario, CA
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20 instant-book locations

Above Urgent Care Center
Above Urgent Care Center
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Prestige Medical Clinic And Urgent Care, Pomona
Prestige Medical Clinic And Urgent Care
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AFC Urgent Care, Chino Hills
AFC Urgent Care
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Carbon Health Urgent Care, Eastvale
Carbon Health Urgent Care
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Carbon Health Urgent Care, Rancho Cucamonga
Carbon Health Urgent Care
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Prestige Medical Clinic And Urgent Care, Rancho Cucamonga
Prestige Medical Clinic And Urgent Care
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Exer Urgent Care, Glendora
Exer Urgent Care
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Carbon Health Urgent Care, Placentia
Carbon Health Urgent Care
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MD Clinics, Worker's Comp (MD)
MD Clinics
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MD Clinics
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Carbon Health Urgent Care, Corona
Carbon Health Urgent Care
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Carbon Health Urgent Care, La Habra
Carbon Health Urgent Care
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Sunny Hills Medical Center, Urgent Care & Primary Care Visits
Sunny Hills Medical Center
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AME Medical Group, Whittier I Urgent Care
AME Medical Group
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Carbon Health Urgent Care, Whittier
Carbon Health Urgent Care
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AFC Urgent Care, Tustin
AFC Urgent Care
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SoCal Urgent Care
SoCal Urgent Care
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AFC Urgent Care, Anaheim Katella Ave
AFC Urgent Care
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Exer Urgent Care, Redlands
Exer Urgent Care
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Recent Urgent Care Reviews (20)
Urgent care in Ontario, CA
Urgent care clinics in Ontario, CA offer walk-in and same-day online booking for non-emergency illness and injury. Ontario anchors the western Inland Empire at the junction of I-10 and I-15, with Ontario International Airport driving significant logistics, distribution, and corporate activity. The city's large daytime workforce in warehousing, aviation services, and manufacturing creates strong demand for both occupational and general urgent care. For the broader Inland Empire network, see urgent care in Riverside.
What services do urgent care clinics in Ontario offer?
Urgent care clinics in Ontario treat respiratory illness, strep, UTIs, ear infections, minor fractures, lacerations, and sprains, with on-site X-ray and lab diagnostics at most locations. Occupational health services are prominent in Ontario — including DOT physicals, pre-employment drug screening, workers' compensation care, and FMCSA medical certification — serving the city's extensive logistics and commercial transport workforce. Concentra operates multiple occupational health locations in the Ontario/Rancho Cucamonga corridor and lists drug testing, injury care, and physicals among its services.2
Does urgent care in Ontario accept Medi-Cal?
Most urgent care clinics in Ontario accept Medi-Cal, California's Medicaid program administered by the California Department of Health Care Services (DHCS).1 San Bernardino County — which encompasses Ontario — has significant Medi-Cal enrollment, and patients should confirm specific plan and in-network status on each clinic's Solv profile. Commercial plans widely accepted include Anthem Blue Cross, Blue Shield of California, Aetna, Cigna, and United Healthcare. According to KFF State Health Facts, approximately 13.1% of Californians were uninsured as of 2023.3
How does Ontario fit into the Inland Empire?
Ontario is a city of approximately 175,000 residents at the western gateway of the Inland Empire, roughly 35 miles east of downtown Los Angeles via I-10 and 15 miles west of Riverside via I-10.4 Ontario International Airport — one of the fastest-growing cargo airports in the US — anchors a logistics cluster that employs tens of thousands across San Bernardino and Riverside Counties. For the full IE urgent care network, see urgent care in Riverside.
Nearby urgent care
- Riverside, CA — Nearest Tier 1 city, 15 miles east
- San Bernardino, CA — IE county seat, 20 miles east
- Pomona, CA — Adjacent LA County, 8 miles west
- Moreno Valley, CA — IE hub, 25 miles southeast
- Los Angeles, CA — 35 miles west on I-10
Urgent Care FAQs
What urgent care clinics are available in Ontario, CA?
Ontario has urgent care clinics along Holt Boulevard, Haven Avenue, and Fourth Street, including Concentra, Kaiser Permanente, and other IE providers. Most accept walk-in patients and offer same-day booking on Solv. Occupational health clinics are well-represented near the airport and logistics corridor.Does urgent care in Ontario, CA accept Medi-Cal?
Most urgent care clinics in Ontario accept Medi-Cal, California's Medicaid program. San Bernardino County has significant Medi-Cal enrollment; confirm your specific plan on each clinic's Solv profile before visiting.What insurance do Ontario urgent care clinics accept?
Ontario urgent care clinics broadly accept Medi-Cal, Anthem Blue Cross, Blue Shield of California, Aetna, Cigna, United Healthcare, and workers' compensation plans. Verify your specific coverage with each clinic.When should I go to urgent care vs. the ER in Ontario, CA?
Use urgent care for non-emergency conditions: flu, strep, UTIs, minor injuries, and occupational incidents that don't require emergency intervention. Go to the ER for chest pain, stroke symptoms, major trauma, or life-threatening emergencies. San Antonio Regional Hospital in Upland and Kaiser Permanente Ontario serve the area's emergency needs.Do Ontario urgent care clinics offer DOT physicals for commercial drivers?
Yes, several urgent care and occupational health clinics in Ontario offer DOT physicals and FMCSA medical certifications, serving the large commercial driver population in the I-10/I-15 logistics corridor near Ontario International Airport. Search Solv for DOT physicals near Ontario.
Solv has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. We avoid using tertiary references.
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