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BEST RATED ONTARIO, CA PRIMARY CARE PHYSICIANS

3 Best Primary Care Physicians in Ontario, CA

Expert-recommended Top 3 Primary Care Physicians in Ontario, California. All of our primary care physicians 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!

Charles Y. Ho, MD - Ontario, CA Primary Care Physicians - Doctor With Patient Image
10+ YEARS IN TBR

CHARLES Y. HO, MD

(4.8 Score)
2525 South Euclid Avenue,
Ontario, CA 91762 Directions

Since 1970

Specialty:

✓Abdominal Pain ✓Arthritis and Care for Medical Conditions ✓Annual Wellness Physicals ✓Sports and Work Physicals ✓Aging-related Illnesses and Conditions ✓Preventive Health Care ✓Well Woman Examinations ✓Urinary Tract Infection ✓Acute Upper Respiratory Infection ✓Joint Pain ✓Fecal Occult Blood Test

" Dr. Charles Y. Ho obtained his medical degree from Taipei Medical University. He holds an affiliation with San Antonio Regional Hospital. He has over 55 years of experience in the field of medicine. Dr. Charles Y. Ho helps all members of your family to achieve and maintain good health and provides treatment for minor injuries. Dr. Charles Y. Ho warmly welcomes new patients to his practice and accepts various health insurance plans. Dr. Charles Y. Ho is fluent in Spanish, Chinese and English, and thus communicates effectively with patients. He understands the patient's problems clearly and keeps updated with the latest treatments.

2026 Highlights: Dr. Charles Y. Ho specializes in treating conditions such as hypertension & high blood pressure, spinal stenosis and spondylosis, and diabetes. "

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License #A31364

Contact:

(909) 986-2288

Mon,Tue & Thu: 8am - 12:30pm|2pm - 5pm
Wed & Fri: 8am - 12:30pm|2pm - 4:30pm Sat & Sun: Closed

TBR® Inspection Report:

David Lozano, MD - Ontario, CA Primary Care Physicians - Doctor With Patient Image
3+ YEARS IN TBR
CALL EMAIL

DAVID LOZANO, MD

(4.8 Score)
402 East Holt Boulevard East, #1618,
Ontario, CA 91761 Directions

Since 1985

Specialty:

✓Burns ✓Cold ✓Cough ✓Flu ✓Diarrhea ✓Weight Gain ✓Strep Throat ✓Infections ✓Diabetes ✓Allergies ✓Whooping Cough ✓Thyroid Disorder Treatment

" Dr. David Lozano obtained his medical degree from the Autonomous University of Guadalajara, Faculty of Medicine. Specializes in Family Medicine, Public Health, and General Preventive Medicine. He has over 39 years of experience in medicine. Dr. David Lozano holds affiliations with San Antonio Regional Hospital. Being fluent in English and Spanish, he communicates effectively with his patients. Dr. David Lozano's extensive experience and compassionate care make him a trusted and valued healthcare provider in the community. Dr. David Lozano offers the best advice and most current news to keep your family as healthy and safe as possible.

2026 Highlights: Dr. David Lozano welcomes patients at multiple locations throughout the Inland Empire region. "

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License #A54737

Contact:

(909) 467-1605

Mon-Thu,Sat & Sun: 8am - 6pm
Fri: 8:30am - 7pm

TBR® Inspection Report:

Lisa My An Tran, MD - Ontario, CA Primary Care Physicians - Doctor Portrait Image
10+ YEARS IN TBR
CALL EMAIL

LISA MY AN TRAN, MD

(4.7 Score)
ONTARIO VINEYARD MEDICAL OFFICES
2295 South Vineyard Avenue,
Ontario, CA 91761 Directions

Since 2005

Specialty:

✓Strep Throat ✓Constipation ✓Depression ✓Cold ✓Preventive Health ✓Digestive Health ✓Flu and Depressive Disorders ✓Annual Wellness Physicals ✓Well Woman Examinations ✓Allergy Testing ✓Immunizations ✓Vaccines ✓Diabetes ✓Allergies ✓Whooping Cough ✓Thyroid Disorder Treatment

" Dr. Lisa My An Tran obtained her medical degree from the University of California, School of Medicine, Irvine, CA. She earned her family medicine internship and residency at Kaiser Foundation Hospital, Fontana, CA. She holds board certification in family medicine from the American Board of Family Medicine. She has over 21 years of experience in the medical field. Dr. Lisa My An Tran currently practices at Ontario Vineyard Medical Offices. Dr. Lisa My An Tran warmly welcomes new patients to her practice and accepts various health insurance plans. Dr. Lisa My An Tran enjoys family medicine because it allows her to care for patients of all ages. She takes care of newborns and their grandparents, sometimes both on the same day.

2026 Highlights: Dr. Lisa My An Tran speaks English and Spanish, serving communities in Ontario and Fontana, California. "

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License #A87427

Contact:

(833) 574-2273 (909) 724-5000

By Appointment

TBR® Inspection Report:

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CHARLES Y. HO, MD REVIEWS

Great medical office, wonderful and warm experience from start to finish. The manager Joana is lovely to speak with at every appointment. It’s rare to find staff that combines such personal touches and care for a patient. I highly recommend becoming a patient at Dr.Charles Ho!.

Dr. Ho is by far the best doctor I have ever had. I have been going to his office for many years and receive above excellent care, also Vanessa in the office is so experienced,friendly,knowledable , and quick to help patients.

I have been a patient if Dr. Ho for many years, he has helped me overcome some difficult medical problems and always attentive. He is a great Dr. In my book, and the staff is always very pleasant and helpful.

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DAVID LOZANO, MD REVIEWS

My mother was full of feelings of anxiety. She hadn't slept well in days, and was willing to admit herself in a psychiatric facility. A neighbor referred us to him and he gave her some treatment that seriously improved her health. There is a considerable wait time, first come first serve. But Dr. Lozano delivers.

Dr. David Lozano has been my doctors for years. Never had a complain about him.

dr.Lozano is great,only problem is the wait takes forever.

LISA MY AN TRAN, MD REVIEWS

I am so happy I decided to go with Mrs. Lisa. She knows what she is doing, very professional and she helped me so much.

I can not express how much I really feel counseling is necessary and how real her help was. I definitely recommend her. Oh and by the way, her office has the best view ever.

I had a very positive experience with this family medicine doctor. She was caring, professional, and took the time to listen to my concerns. I felt comfortable discussing my health, and she explained everything clearly. I would definitely recommend her to other patients.

TBR® Inspection Score Report

CHARLES Y. HO, MD Total Inspection Points: 115/120
Business Hours: 8
Call Inspection: 9
Contact Info: 9
Current Evaluation: 9
Insurance : 10
License: 10
Exact Services: 10
Experience: 10
Legitimate Ratings: 10
Location Proximity: 10
Review Analysis: 10
Reviews Study: 10

TBR® Inspection Score Report

DAVID LOZANO, MD Total Inspection Points: 114/120
Acknowledgments: 8
Reviews Accuracy of : 8
Call Inspection: 9
Current Evaluation: 9
Insurance : 10
Business Hours: 10
License: 10
Exact Services: 10
Experience: 10
Legitimate Ratings: 10
Location Proximity: 10
Reviews Study: 10

TBR® Inspection Score Report

LISA MY AN TRAN, MD Total Inspection Points: 113/120
Business Images: 8
Complete Info: 8
Acknowledgments: 9
Call Inspection: 9
Experience: 9
Insurance : 10
Contact Info: 10
License: 10
Current Evaluation: 10
Exact Services: 10
Legitimate Ratings: 10
Location Proximity: 10