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315 verified Doctors in Ontario, CA
Zocdoc verifies all providers before they can appear in Zocdoc search results. Every provider that appears in search is open to new patients.
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Availability last updated 09/10/2026
Availability last updated 09/10/2026
Primary Care Doctor
3.82
·51 reviews
A straightforward kind of guy and that’s okay by me. Quite a quick appointment... to his credit! by Richard A.Click to read more
7 mi · 8237 Rochester Ave, Ste 110, Rancho Cucamonga, CA 91730
Accepts Aetna, BlueCross BlueShield, Cigna + 18 more
Also offers video visits · Accepting new patients · 25+ years of experience · Expertise in chronic high blood pressure + 6 more ·
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Dr. Ashish Malhotra is Board Certified in Family Medicine and Fellowship trained in Geriatric Medicine. He earned his Doctor of Medicine from the American University of the Caribbean School of Medicine. Dr. Malhotra completed his Residency in Family Medicine at North Oakland Medical Center and his F...Click to read more
Primary Care Doctor (Virtual)
3.82
·51 reviews
A straightforward kind of guy and that’s okay by me. Quite a quick appointment... to his credit! by Richard A.Click to read more
Rancho Cucamonga, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 18 more
Accepting new patients · 25+ years of experience · Offers video visits · Expertise in chronic high blood pressure + 6 more ·
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Dr. Ashish Malhotra is Board Certified in Family Medicine and Fellowship trained in Geriatric Medicine. He earned his Doctor of Medicine from the American University of the Caribbean School of Medicine. Dr. Malhotra completed his Residency in Family Medicine at North Oakland Medical Center and his F...Click to read more
Primary Care Doctor
5.00
·30 reviews
7 mi · 15855 Pomona Rincon Rd, Chino Hills, CA 91709
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Accepting new patients · Highly recommended ·
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Dr. Melvin Kantono believes incorporating preventative medicine and building close relationships with his patients are key to living a healthier lifestyle. Outside of medicine, he enjoys calisthenics, airsoft, and traveling.Click to read more
Primary Care Doctor (Virtual)
4.88
·34 reviews
My video visit with Dr. Murayama was smooth. He communicated clearly and addressed all my concerns. - Oct 2, 2025 by Lavanya R.Click to read more
Chino Hills, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
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* Patients between the ages of 12-17 should contact the office to schedule an appointment. * Dr. Matthew Murayama is a Family Medicine physician who completed his residency training in the Inland Empire in 2024. He received his medical degree from Western University COMP in Pomona, CA before comple...Click to read more
Primary Care Doctor
4.95
·38 reviews
Great experience! My doctor was kind and informative. Would recommend - Aug 28, 2024 by Sarah R.Click to read more
7 mi · 15855 Pomona Rincon Rd, Chino Hills, CA 91709
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Accepting new patients · Highly recommended · Excellent wait time · Expertise in chronic diabetes + 3 more ·
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My primary goals in medicine are providing compassionate, evidence-based care to all patients. I enjoy patient education and preventative care and believe that understanding one's health leads to better health outcomes. I earned my Doctor of Medicine from the University of California, Irvine, and co...Click to read more
Primary Care Doctor
4.88
·34 reviews
My video visit with Dr. Murayama was smooth. He communicated clearly and addressed all my concerns. - Oct 2, 2025 by Lavanya R.Click to read more
7 mi · 15855 Pomona Rincon Rd, Chino Hills, CA 91709
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
* Patients between the ages of 12-17 should contact the office to schedule an appointment. * Dr. Matthew Murayama is a Family Medicine physician who completed his residency training in the Inland Empire in 2024. He received his medical degree from Western University COMP in Pomona, CA before comple...Click to read more
Primary Care Doctor
7 mi · 15855 Pomona Rincon Rd, Chino Hills, CA 91709
Accepts Aetna, BlueCross BlueShield, Cigna + 11 more
Accepting new patients ·
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Dr. Vince Patrick Cacho is a board-certified physician with St. Jude Heritage Medical Group practicing in Chino Hills, CA. Dr. Cacho specializes in both internal medicine and pediatrics.Click to read more
Physician Assistant (Virtual)
5.00
·30 reviews
Upland, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 15 more
Accepting new patients · Offers video visits · Highly recommended ·
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Barbara Santa Cruz is a dedicated physician assistant at Rancho Wellness in Rancho Cucamonga and Upland, with over 44 years of experience in healthcare. A Southern California native, Barbara began her career in nursing before becoming a PA when the profession was still in its early days. Her backgro...Click to read more
Physician Assistant
5.00
·30 reviews
2.5 mi · 525 N 13th Ave, Ste A, Upland, CA 91786
Accepts Aetna, BlueCross BlueShield, Cigna + 15 more
Also offers video visits · Accepting new patients · Highly recommended ·
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Barbara Santa Cruz is a dedicated physician assistant at Rancho Wellness in Rancho Cucamonga and Upland, with over 44 years of experience in healthcare. A Southern California native, Barbara began her career in nursing before becoming a PA when the profession was still in its early days. Her backgro...Click to read more
Primary Care Doctor
4.74
·134 reviews
Dr Sharma is great! Very attentive, a good listener, and her staff are great too! Don’t hesitate to book an appointment. - Nov 2, 2023Click to read more
9.5 mi · 315 S Diamond Bar Blvd, Ste C, Diamond Bar, CA 91765
Accepts Aetna, BlueCross BlueShield, Cigna + 19 more
Accepting new patients · Highly recommended · Expertise in chronic high blood pressure + 3 more ·
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Dr. Ekta Sharma is a Board Certified Family Physician with a private practice in Diamond Bar, CA. She earned her Doctor of Medicine degree from St. George's University School of Medicine and completed her residency training in Family Medicine at HackensackUMC Mountainside in New Jersey. Her dedicat...Click to read more
Primary Care Doctor (Virtual)
Diamond Bar, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 13 more
Accepting new patients · 25+ years of experience · Offers video visits · Expertise in chronic diabetes + 9 more ·
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Dr. Douglas Starr is a family medicine doctor in Diamond Bar, California and is affiliated with St. Jude Medical Center. He received his medical degree from Keck School of Medicine of USC and has been in practice for more than 20 years.Click to read more
Primary Care Doctor (Virtual)
Diamond Bar, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 13 more
Accepting new patients · 25+ years of experience · Offers video visits · Expertise in emphysema (copd) + 9 more ·
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Building a long-term relationship with each of my patients is both important and satisfying. At every age, and regardless of what their limitations might be, there are many steps people can take to achieve and maintain good health. My approach is to partner with each patient in developing a personal...Click to read more
Primary Care Doctor
4.60
·30 reviews
9.5 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Accepting new patients · Highly recommended ·
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Dr. Lilian Li is a family medicine physician with St. Jude Heritage Medical Group practicing in Diamond Bar, CA.Click to read more
Primary Care Doctor
5.00
·30 reviews
9.5 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Accepting new patients · Highly recommended · Expertise in chronic high blood pressure + 6 more ·
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Dr. Kim Tran is a board-certified Family Medicine physician. After graduating from University of California, Irvine in 2011, she went on to complete medical school at Lake Erie College of Osteopathic Medicine in Erie, PA and residency training at Sisters of Charity Hospital in Buffalo, NY, where she...Click to read more
Primary Care Doctor
9.5 mi · 253 S Diamond Bar Blvd, Diamond Bar, CA 91765
Accepts Aetna, BlueCross BlueShield, Cigna + 13 more
Also offers video visits · Accepting new patients · 25+ years of experience · Expertise in emphysema (copd) + 9 more ·
Read bio
Building a long-term relationship with each of my patients is both important and satisfying. At every age, and regardless of what their limitations might be, there are many steps people can take to achieve and maintain good health. My approach is to partner with each patient in developing a personal...Click to read more
Primary Care Doctor
4.87
·46 reviews
Dr Panchal was incredibly kind, thoughtful, and patient. I felt seen & heard by her. I was nervous coming into my appointment, but after some time with her I felt a lot more comfortable. Upon arrival, I was greeted by her friendly front-desk staff. The nurse was incredibly sweet too. She even helped...Click to read more
9.5 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Accepting new patients · Highly recommended · Excellent wait time ·
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I am excited to be back in my hometown of Diamond Bar to serve my community as your doctor! As your physician, I will partner with you to help optimize your health. My goal is to work with you using different evidence-based modalities to manage and, more importantly, prevent chronic diseases. I s...Click to read more
Primary Care Doctor
9.5 mi · 253 S Diamond Bar Blvd, Diamond Bar, CA 91765
Accepts Aetna, BlueCross BlueShield, Cigna + 13 more
Also offers video visits · Accepting new patients · 25+ years of experience · Expertise in chronic diabetes + 9 more ·
Read bio
Dr. Douglas Starr is a family medicine doctor in Diamond Bar, California and is affiliated with St. Jude Medical Center. He received his medical degree from Keck School of Medicine of USC and has been in practice for more than 20 years.Click to read more
Family Nurse Practitioner
3.75
·4 reviews
3.5 mi · 5475 Walnut Ave, Chino, CA 91710
Accepts Aetna, BlueCross BlueShield, Cigna + 19 more
Also offers video visits · Accepting new patients ·
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Hello! Please review a few things when booking with me: Before booking, please make sure the location works for you. We have a number of locations in the Inland Empire. We collect deductibles, copays at the time of service. If you have any questions or concerns, please call your insurance before yo...Click to read more
Family Nurse Practitioner
5.00
·7 reviews
3.5 mi · 5475 Walnut Ave, Chino, CA 91710
Accepts Aetna, BlueCross BlueShield, Cigna + 19 more
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
Hello! Please review a few things when booking with me: Before booking, please make sure the location works for you. We have a number of locations in the Inland Empire. We collect deductibles, copays at the time of service. If you have any questions or concerns, please call your insurance before y...Click to read more
Family Nurse Practitioner (Virtual)
5.00
·7 reviews
Chino, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 19 more
Accepting new patients · Offers video visits · Highly recommended ·
Read bio
Hello! Please review a few things when booking with me: Before booking, please make sure the location works for you. We have a number of locations in the Inland Empire. We collect deductibles, copays at the time of service. If you have any questions or concerns, please call your insurance before y...Click to read more
Family Nurse Practitioner (Virtual)
3.75
·4 reviews
Chino, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 19 more
Accepting new patients · Offers video visits ·
Read bio
Hello! Please review a few things when booking with me: Before booking, please make sure the location works for you. We have a number of locations in the Inland Empire. We collect deductibles, copays at the time of service. If you have any questions or concerns, please call your insurance before yo...Click to read more
Family Nurse Practitioner
5.00
·4 reviews
3.5 mi · 5475 Walnut Ave, Chino, CA 91710
Accepts Aetna, BlueCross BlueShield, Cigna + 19 more
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
Esther Sung, MSN, FNP-C, is a compassionate and dedicated Family Nurse Practitioner with a rich background in primary care, pediatrics, and community health. She earned her Bachelor's degrees from Loma Linda University Medical Center and California State University, East Bay, and completed her Maste...Click to read more
Family Nurse Practitioner (Virtual)
5.00
·4 reviews
Chino, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 19 more
Accepting new patients · Offers video visits · Highly recommended ·
Read bio
Esther Sung, MSN, FNP-C, is a compassionate and dedicated Family Nurse Practitioner with a rich background in primary care, pediatrics, and community health. She earned her Bachelor's degrees from Loma Linda University Medical Center and California State University, East Bay, and completed her Maste...Click to read more
Family Nurse Practitioner (Virtual)
3.75
·4 reviews
The doctor was wonderful! she guided me through the process she answered all my questions and I felt heard and understood. I would definitely recommend her and return in the future - May 15, 2025 by Leahmontaine B.Click to read more
Chino, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 19 more
Accepting new patients · Offers video visits ·
Read bio
Ms. Shivani Sharma is a dedicated and compassionate family nurse practitioner who focuses on patient advocacy and education. She is based in Chino, CA, and provides both in-person and virtual consultations at Cajon Medical Group. Following her bachelor's degree at Samuel Merritt University, Ms. Sha...Click to read more
Family Nurse Practitioner
3.75
·4 reviews
The doctor was wonderful! she guided me through the process she answered all my questions and I felt heard and understood. I would definitely recommend her and return in the future - May 15, 2025 by Leahmontaine B.Click to read more
3.5 mi · 5475 Walnut Ave, Chino, CA 91710
Accepts Aetna, BlueCross BlueShield, Cigna + 19 more
Also offers video visits · Accepting new patients ·
Read bio
Ms. Shivani Sharma is a dedicated and compassionate family nurse practitioner who focuses on patient advocacy and education. She is based in Chino, CA, and provides both in-person and virtual consultations at Cajon Medical Group. Following her bachelor's degree at Samuel Merritt University, Ms. Sha...Click to read more
Primary Care Doctor (Virtual)
Diamond Bar, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 11 more
Accepting new patients · 23 years of experience · Offers video visits · Expertise in high cholesterol + 4 more
Internist
4 mi · 8906 San Bernardino Rd, Ste 140, Rancho Cucamonga, CA 91730
Also offers video visits · Accepting new patients ·
Read bio
My experience embodies the fusion of clinical excellence, artificial intelligence, and strategic business acumen. I bring data-driven, academic, and commercial research design understanding. Coupled with machine learning knowledge, the sky’s the limit. I earned my Doctor of Medicine from the Univ...Click to read more
Internist (Virtual)
Rancho Cucamonga, CA
Accepting new patients · Offers video visits ·
Read bio
My experience embodies the fusion of clinical excellence, artificial intelligence, and strategic business acumen. I bring data-driven, academic, and commercial research design understanding. Coupled with machine learning knowledge, the sky’s the limit. I earned my Doctor of Medicine from the Univ...Click to read more
Nurse Practitioner
1.00
·1 review
4 mi · 8906 San Bernardino Rd, Ste 140, Rancho Cucamonga, CA 91730
Also offers video visits · Accepting new patients ·
Read bio
Ms. Martena Israil is a skilled, friendly, and caring nurse practitioner. She currently offers her services at Rancho Weight Loss in Rancho Cucamonga, CA, and takes virtual appointments. As part of her formal education and training, Ms. Israil earned her master's degree in family health nursing fr...Click to read more
Nurse Practitioner
4.5 mi · 5581 Daniels St, Chino, CA 91710
Accepting new patients
Nurse Practitioner
4.5 mi · 5581 Daniels St, Chino, CA 91710
Accepting new patients
Nurse Practitioner
4.5 mi · 5581 Daniels St, Chino, CA 91710
Accepting new patients
Nurse Practitioner
4.5 mi · 5581 Daniels St, Chino, CA 91710
Accepting new patients
Nurse Practitioner
6.5 mi · 14504 Pipeline Ave, Chino, CA 91710
Accepting new patients
Nurse Practitioner
6.5 mi · 14504 Pipeline Ave, Chino, CA 91710
Accepting new patients
Nurse Practitioner
6.5 mi · 14504 Pipeline Ave, Chino, CA 91710
Accepting new patients
Nurse Practitioner
6.5 mi · 14504 Pipeline Ave, Chino, CA 91710
Accepting new patients
Physician Assistant
5.00
·10 reviews
6.5 mi · 8231 Rochester Ave, Rancho Cucamonga, CA 91730
Accepts Aetna, BlueCross BlueShield, Cigna + 15 more
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Hilda Mancilla, PA-C, is a dedicated physician assistant at Rancho Wellness in Rancho Cucamonga and Upland. A lifelong Inland Empire resident, she earned her undergraduate degree from Cal State San Bernardino and her medical training from Western University of Health Sciences in Pomona. With 24 year...Click to read more
Physician Assistant (Virtual)
5.00
·10 reviews
Rancho Cucamonga, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 15 more
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Hilda Mancilla, PA-C, is a dedicated physician assistant at Rancho Wellness in Rancho Cucamonga and Upland. A lifelong Inland Empire resident, she earned her undergraduate degree from Cal State San Bernardino and her medical training from Western University of Health Sciences in Pomona. With 24 year...Click to read more
Pediatrician
5.00
·35 reviews
I was very satisfied with the overall experience and care that was provided. Everyone was very friendly, kind, and patient. - Apr 3, 2024 by Cataleya M.Click to read more
7 mi · 15855 Pomona Rincon Rd, Chino Hills, CA 91709
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Please note that this provider only sees children and adolescents under the age of 18. Dr. Jing Chen is a board-certified Pediatrician practicing the past 3 years in Southern California. She completed medical school at Creighton University School of Medicine before finishing her residency and inter...Click to read more
Calendar Check
1-3 days

Average time it takes to be seen by a provider

Doctor
100k

Verified providers with a 4.8 average rating

Primary Care Physician
15+ years

In the business of finding quality care for patients

Patients trust Zocdoc
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Stefan M
10/10!!!! I woke up on Sunday with severe wisdom tooth pain. I was able to make an early appointment Monday morning...So so happy with my experience!
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I checked out Zocdoc’s website and was pleasantly surprised. I read a lot of positive reviews from most of their providers...My only regret is that I didn’t make an appointment sooner.
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Frequently asked questions

How can I make a same-day appointment with a Primary Care Doctor in Ontario?

On average, patients who use Zocdoc can search for a Primary Care Doctor in Ontario, book an appointment, and see the Primary Care Doctor within 24 hours. Same-day appointments are often available, you can search for real-time availability of Doctors in Ontario who accept your insurance and make an appointment online.


How can I find an Ontario Primary Care Doctor who takes my insurance?

Zocdoc lets you search specifically for an Ontario Primary Care Doctor who takes your insurance. Just choose your carrier and plan from the drop-down menu at the top of the page. If you’re not sure which plan you have, you can use Zocdoc’s insurance checker to find out.


How can I book an appointment online with a Primary Care Doctor in Ontario?

Zocdoc is a free online service that helps patients find Doctors in Ontario and book appointments instantly. You can search for Ontario Doctors by symptom or visit reason. Then, choose your insurance plan. Based on that information, you’ll see a list of providers who meet your search criteria, along with their available appointment slots.


How can I find a female Primary Care Doctor in Ontario?

When you search for Ontario Doctors on Zocdoc, you can filter your results by gender, in addition to other criteria. That way, you’ll only see Doctors in Ontario who match your preferences.


How can I find an Ontario Primary Care Doctor who sees patients after hours?

On Zocdoc, you can search specifically for Ontario Doctors with availability after 5 p.m.


How can I find a top-rated Primary Care Doctor in Ontario?

You can use Zocdoc to find Doctors in Ontario who are highly rated by other patients. These ratings are based on verified reviews submitted by real patients. Every time a patient completes an appointment booked on Zocdoc, they’re invited to review their experience. Each review must comply with Zocdoc’s guidelines.


How can I find a video visit with a Primary Care Doctor online in Ontario?

Doctors in Ontario on Zocdoc who see patients through online video visits will have a purple video icon on their profiles. You can also filter your search results to show only Doctors who offer video visits.


Are video visits with a Primary Care Doctor online covered by my insurance?

Most insurers provide coverage for video visits at the same cost as in-person visits. You can search on Zocdoc specifically for Doctors in Ontario who accept your insurance for video visits by selecting your carrier and plan from the drop-down menu at the top of the page. We recommend you check with your insurance carrier directly to confirm your coverage and out of pocket costs for video visits.


How can I find a Primary Care Doctor in Ontario who sees patients in the morning or evening?

Zocdoc lets you search specifically for a Primary Care Doctor who has appointments available before 10:00 am, or after 5:00 pm. Just choose the special hours filter at the top of our search page.


How can I find a Primary Care Doctor in Ontario who sees patients during the weekend?

Zocdoc let's you see real-time availability for Doctors in Ontario. Many Doctors offer appointments on Saturdays and Sundays.


Zocdoc›Doctors›Orange County, CA›Ontario, CA