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BEST RATED ONTARIO, CA URGENT CARE CLINICS

3 Best Urgent Care Clinics in Ontario, CA

Expert-recommended Top 3 Walk-In Clinics in Ontario, California. All of our Urgent Care Centers actually face a rigorous 50-Point Inspection, which includes customer reviews, history, complaints, ratings, satisfaction, trust, cost and general excellence. You deserve only the best!

Concentra Urgent Care Ontario - Ontario, CA Urgent Care Clinics - Clinic Exterior Image
Concentra Urgent Care Ontario - Ontario, CA Urgent Care Clinics - Reception Area Image
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Best Urgent Care Clinics in Ontario CA - Concentra Urgent Care Ontario video
10+ YEARS ON TBR
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CONCENTRA URGENT CARE ONTARIO

(5.0 Score)
1101 South Milliken Avenue, Suite C,
Ontario, CA 91761 Directions

Since 1979

Specialty:

✓Allergies ✓Asthma ✓Bites and Stings ✓Common Colds and Flu ✓Cuts and Scrapes ✓Fractures ✓Falls ✓Gastritis or Indigestion ✓Headaches (Migraine and Tension) ✓Sprains and Strains ✓Drug Screen ✓Biometric Testing ✓Diarrhea ✓Auto Accidents ✓Bronchitis ✓Ear and Eye Infections ✓Acute Fracture ✓Strep and Sore Throat ✓Colds ✓Insect and Bee Stings ✓Vaccinations ✓Influenza ✓Stomach Flu ✓Cuts and Minor Lacerations ✓Back Pain and Bladder Infections

" Concentra Urgent Care Ontario provides treatment for a wide range of illnesses, injuries, and common conditions. Concentra’s 12,000+ colleagues treat more than 50,000 patients a day. Their medical assistants are highly skilled and well-experienced in this medical field. Concentra Urgent Care is equipped with the latest medical instruments and facilities. They offer occupational health services, including medical treatment, physical therapy, testing, and physical exams. The clinic has several rooms for tests, a large space for physical therapy, and a concept that creates a more positive atmosphere of patient care. They offer a variety of wellness, diagnostic, and screening services.

2026 Highlights: Concentra Urgent Care Ontario offers a wide range of vaccines and can order additional vaccines to meet your specific needs."

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License #1396926523

Price:

X-Ray (Chest) Self-Pay: $185

Contact:

(909) 390-2799 (909) 390-0929

Mon-Fri: 8am - 5pm
Sat & Sun: Closed

TBR® Inspection Report:

San Antonio Urgent Care Ontario - Ontario, CA Urgent Care Clinics - Clinic Exterior Image
San Antonio Urgent Care Ontario - Ontario, CA Urgent Care Clinics - Clinic Interior Image
San Antonio Urgent Care Ontario - Ontario, CA Urgent Care Clinics - Waiting Room
Best Urgent Care Clinics in Ontario CA - San Antonio Urgent Care Ontario video
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SAN ANTONIO URGENT CARE ONTARIO

(4.9 Score)
970 N Mountain Avenue,
Ontario, CA 91762 Directions

Since 1907

Specialty:

✓Cold and Flu Symptoms ✓Diagnostic Testing On-Site ✓Ear ✓Eye and Throat Pain ✓Fractures ✓Sprains and Strains ✓Headaches ✓Laceration Repair ✓Nausea ✓Vomiting ✓Diarrhea ✓Pink Eye ✓Allergies and Asthma ✓Skin Rash ✓TB Skin Test ✓UTI ✓STD Treatment ✓Walk-In Sports Physicals ✓Wound and Injury Care

" San Antonio Urgent Care Ontario provides a wide range of immediate medical services for the treatment of illnesses or injuries. It is staffed by highly trained and certified doctors and nurses dedicated to providing patients with the highest standard of medical care. It is located in a welcoming and hygienic environment designed to bring peace of mind. It has access to cutting-edge medical resources, including advanced diagnostic equipment and advanced treatment options. It focuses on providing care in a friendly and professional environment. The clinic offers a comprehensive seven-day-a-week service to the patients.

2026 Highlights: San Antonio Urgent Care Ontario has medical staff who will be bilingual to better serve patients in this area."

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License #1619923653

Price:

Self Pay $90

Contact:

(909) 579-6680

Mon-Fri: 9am - 8pm
Sat & Sun: 9am - 5pm

TBR® Inspection Report:

Advanced Urgent Care Center - Ontario, CA Urgent Care Clinics - Clinic Exterior Image
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Best Urgent Care Clinics in Ontario CA - Advanced Urgent Care Center video
10+ YEARS ON TBR
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ADVANCED URGENT CARE CENTER

(4.8 Score)
974 West Foothill Boulevard, Upland,
Ontario, CA 91786 Directions

Since 2012

Specialty:

✓Eye Infections ✓Cough and Cold ✓Flu Shots ✓Food Poisoning ✓Diarrhea ✓Headaches ✓Diabetes ✓Abscess ✓Drainage ✓Asthma ✓Fever ✓Eye Irrigation ✓Migraines ✓Back/Neck Pain ✓Skin Rash ✓Flu ✓Bites ✓Bronchitis ✓Burns ✓Pain Management ✓Breathing Treatments ✓Pink Eye ✓Sore Throat ✓Sinus Infection ✓Genital Herpes ✓Pneumonia ✓Cold Sores and Heartburn

“ Advanced Urgent Care Center provides high-quality services at significantly more affordable prices. The clinic is located 2.7 miles away from downtown Ontario. Advanced Urgent Care Center has on-site pharmacy facilities. The clinic provides quick and friendly service in a quiet, spa-like setting so you can immediately diagnose and treat your injuries or illnesses. They also offer several health screening services. The clinic is proud to serve their community with quality medical care at minimal cost and wait time. Advanced Urgent Care Center is available seven days a week, with extended hours during the week, on holidays, and on weekends for your convenience. They offer free parking, an on-site lab, X-ray services, and a pharmacy.”

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License #1164175410

Price:

Urgent Care Visits $100

Contact:

(909) 981-2273

Mon-Fri: 8am - 7:30pm
Sat & Sun: 9am - 4:30pm

TBR® Inspection Report:

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CONCENTRA URGENT CARE ONTARIO REVIEWS

The staff and COD here are very sweet and understanding. Very welcoming environment! I came very nervous due to my fear of needles and once I got sent back the MA named Lucy made it such a better experience for me! I would definitely recommend this clinic! 10/10 in my books.

Everyone was friendly, I was acknowledged when I can in and was helped immediately. From the office manager,nurse to the doctor, everyone was on point with customer service. It was refreshing going to a place that made you feel like you were a person. Thank you.

Great clinic! I did not wait long at all and the staff was very helpful. The doctor gave me medication that helped me feel better right away. I will definitely go back here for care.

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SAN ANTONIO URGENT CARE ONTARIO REVIEWS

My first visit to San Antonio Urgent Care in Ontario was fantastic! From the moment I walked in with my daughter, the staff was incredibly friendly and helpful. The facility was spotlessly clean, which is always a good sign. It was also conveniently located and easy to access. Overall, a great experience—I highly recommend it.

Great place for a quick Doctors visit. They are very friendly and fast. I have come here for my husband, kids and for myself. Front desk is always helpful and they see you quickly. Waiting for them to add x ray machines so we completely eliminate ER visits if it’s not a life threatening situation.

Good experience so far, much better than the eastvale location! They actually listen and interact with you.

ADVANCED URGENT CARE CENTER REVIEWS

I highly recommend this facility if your looking for professional and efficient medical attention. Dr. Courtney and Nurse Crystal did an amazing job of tending to my health and well-being. It's refreshing to see such passionate professionals at work in their area of expertise. They have definitely mastered their craft. Thank You for your time and services .

We’ve been here several times with our family, the service and attention is always impressive. Dr. Betty and entire team are very kind and eager to help. This Urgent Care deserves 5 diamonds.

The service here was great! You sign in and they let you go to your car and wait. They text you when you are ready to be seen. Everyone was very pleasant and helpful.

TBR® Inspection Score Report

CONCENTRA URGENT CARE ONTARIO Total Inspection Points: 119/120
Business Hours: 9
Acknowledgments: 10
Business Images: 10
Complete Info: 10
Contact Info: 10
License: 10
Current Evaluation: 10
Exact Services: 10
Legitimate Ratings: 10
Location Proximity: 10
Online Appointment: 10
Pricing: 10

TBR® Inspection Score Report

SAN ANTONIO URGENT CARE ONTARIO Total Inspection Points: 118/120
Acknowledgments: 9
Business Hours: 9
Business Images: 10
Complete Info: 10
Contact Info: 10
License: 10
Current Evaluation: 10
Exact Services: 10
Legitimate Ratings: 10
Location Proximity: 10
Online Appointment: 10
Pricing: 10

TBR® Inspection Score Report

ADVANCED URGENT CARE CENTER Total Inspection Points: 114/120
Acknowledgments: 8
Business Hours: 9
Complete Info: 9
Review Analysis: 9
Reviews Accuracy of : 9
Business Images: 10
Contact Info: 10
Current Evaluation: 10
Exact Services: 10
Legitimate Ratings: 10
Location Proximity: 10
Online Appointment: 10