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315 verified Doctors in Ontario, CA
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Availability last updated 08/21/2026
Availability last updated 08/21/2026

Dr. Rishi Majithia, MD

Primary Care Doctor
4.80
·350 reviews
Friendly, accessible, supportive. Quickly got to RCA, and provided easy next steps.Click to read more
2.5 mi · 99 N San Antonio Ave, Ste 210, Upland, CA 91786
Accepts Aetna, BlueCross BlueShield, Cigna + 4 more
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
***We DO NOT accept HMO plans or out-of-state insurance plans. You will be charged cash for those appointments. We do not prescribe controlled substances. All pre-visit information must be filled out in a timely manner before your appointment, or you will be subject to cancellation. Please review...Click to read more
Next available: today

Martena Israil, NP

Nurse Practitioner (Virtual)
1.00
·1 review
Rancho Cucamonga, CA
Accepting new patients · Offers video visits ·
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
Next available: today

Carbon Health Urgent Care - Eastvale

Urgent Care Clinic
4.86
·70 reviews
It was easy to make appointments, the wait time was minimal and the staff was very friendly and professional. - May 15, 2025 by Donald R.Click to read more
7 mi · 14117 Limonite Ave, Eastvale, CA 91752
Accepts Aetna, BlueCross BlueShield, Cigna + 13 more
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Carbon Health combines smart technology and modern design to help make high-quality, inclusive, and personal healthcare accessible to all. With our convenient urgent care locations, we treat a full spectrum of health needs including cold, COVID and flu symptoms, urinary tract infections, sinus infec...Click to read more
Next available: today

Carbon Health Urgent Care - Rancho Cucamonga

Urgent Care Clinic
4.79
·102 reviews
Amazing staff and location!! Went above and beyond A++ - Jan 18, 2026 by David A.Click to read more
7.5 mi · 7831 Monticello Ave, Ste 1102, Rancho Cucamonga, CA 91739
Accepts Aetna, BlueCross BlueShield, Cigna + 13 more
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Carbon Health combines smart technology and modern design to help make high-quality, inclusive, and personal healthcare accessible to all. With our convenient urgent care locations, we treat a full spectrum of health needs including cold, COVID and flu symptoms, urinary tract infections, sinus infec...Click to read more
Next available: today

Dr. Hitendra Shah, MD

Primary Care Doctor
4.86
·22 reviews
Amazing visit. Truly an amazing Dr! Listens to his patients & truly wants to help them heal! by AFClick to read more
9.5 mi · 23341 Golden Spgs Dr, Ste 210, Diamond Bar, CA 91765
Accepts Aetna, Medicare + 1 more
Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in underactive thyroid + 4 more ·
Read bio
Dr. Hitendra Shah is a highly trusted primary care doctor. He practices at Wellness Medical Clinic in Diamond Bar, CA, where he welcomes people of all ages. As part of his formal education, Dr. Shah earned a medical degree from Dr. Vaishampayan Memorial Medical College. People trust his expertise b...Click to read more
Next available: Tue, Aug 25

Dr. Eric Lee, DO

Primary Care Doctor
4.91
·76 reviews
Great, patient communicator. Will go back to him next year for my physical. - Dec 17, 2024Click 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 · Expertise in chronic diabetes + 3 more ·
Read bio
Dr. Eric Lee is a family physician and primary care doctor. He is a part of St. Jude - Family Medicine in Diamond Bar, CA. He treats a range of common illnesses and also offers consultations and check-ups as part of his services. Dr. Lee earned his medical degree from A. T. Still University. He co...Click to read more
Next available: Fri, Aug 28

Hilda Mancilla, PA

Physician Assistant
5.00
·10 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 · 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
Next available: Thu, Sep 3

Heidi Larson, APRN, RN, NP

Family Nurse Practitioner
4.82
·28 reviews
Heidi Larson was the most thorough physician I’ve seen. I felt we were on the same level. She took so much time with me. I truly recommend her. - Jun 18, 2026 by Shawn O.Click to read more
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 · Excellent wait time ·
Read bio
Heidi Larson, FNP-C is a board-certified family nurse practitioner with over 25 years of experience in medicine. She has been caring for patients at Rancho Wellness in Rancho Cucamonga for the past ten years. Originally from Huntington Beach, Heidi completed her undergraduate studies at Westmont Col...Click to read more
Next available: Thu, Sep 3

Dr. Hussein Abidali, DO

Gastroenterologist
4.50
·2 reviews
Able to get an appointment for just a few days later! Doctor took action and ordered lots of tests to try to get to the bottom of my health issue. Grateful for such quick appointment availability. - Jul 26, 2026 by Dana W.Click to read more
5.5 mi · 9481 Pittsburgh Ave, Ste 200, Rancho Cucamonga, CA 91730
Accepts Aetna, BlueCross BlueShield, Cigna + 7 more
Accepting new patients · Excellent wait time · Expertise in acid reflux + 5 more ·
Read bio
Hussein Abidali, DO, is a board-certified gastroenterologist at Platinum Digestive Health in Rancho Cucamonga, California. With a wealth of credentials and extensive training, Dr. Abidali is dedicated to providing comprehensive and advanced care in gastroenterology. Dr. Abidali holds certifications...Click to read more
Next available: Mon, Aug 24

Dr. Paul Usborne, MD

Primary Care Doctor
4.78
·91 reviews
I would definitely recommend this doctor's office friendly staff very clean and accurate on timing !!! - Jan 20, 2023 by Daniel R.Click to read more
14 mi · 256 W San Bernardino Rd, Covina, CA 91723
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Also offers video visits · Accepting new patients · 24 years of experience · Excellent wait time · Expertise in lower back pain + 9 more ·
Read bio
Dr. Usborne is a Southern California native. He was born and raised in San Diego and graduated from Bonita Vista High School. He earned his undergraduate degree at the University of California, Davis. He received his doctorate degree from AUC School of Medicine and completed his post-graduate educat...Click to read more

Dr. Aaron Lin, DO

Primary Care Doctor
4.94
·52 reviews
It was a virtual appointment and i don’t know why zocdoc asks me for office review. Dr Lin was amazing friendly and knowledgeable. His assistants were nice and friendly over the phone too. - May 15, 2022 by Ronnie A.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 · Expertise in lower back pain + 5 more ·
Read bio
I am committed to providing comprehensive health care for you and your family, working to achieve optimal health through a healthy lifestyle and disease prevention. I believe in caring for you when you are both sick and well. I earned my Doctor of Osteopathic Medicine degree from Rowan University an...Click to read more
Next available: Fri, Sep 25

Dr. Sreedhar Chava, MD

Primary Care Doctor
4.75
·20 reviews
Todo Excelente by NCClick to read more
17 mi · 1651 N. Hacienda Blvd, La Puente, CA 91744
Accepts Aetna, BlueCross BlueShield, Cigna + 6 more
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time · Expertise in acute stomach inflammation/infection + 9 more ·
Read bio
Please confirm your insurance deductible status prior to booking your appointment, as this effect your co-pay-co-insurance at time of service! Dr. Sreedhar Chava is a highly regarded family physician who sees patients at his private practice in La Puente and El Monte, CA. He offers both in-person ...Click to read more
Next available: today

Barbara Santacruz, PA

Physician Assistant
5.00
·30 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 ·
Read bio
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
Next available: Thu, Sep 3

Dr. Karen Kay G Alfonso, MD

Pediatrician
5.00
·1 review
7 mi · 15855 Pomona Rincon Rd, Chino Hills, CA 91709
Accepts Aetna, BlueCross BlueShield, Cigna + 4 more
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Alfonso is a board-certified pediatrician practicing for over 10 years in Orange and LA county. She received her medical degree at UC Davis School of Medicine and completed her residency training at CHOC Children’s hospital. Her favorite thing about being a pediatrician is, of course, the kids!...Click to read more
Next available: Thu, Sep 10

Dr. Sergio B Villegas, MD

Primary Care Doctor
4.88
·59 reviews
Very friendly and attentive staff. Doctor was very great and very professional. Would def recommend to everyone - Aug 21, 2025 by Justin V.Click to read more
16.5 mi · 4646 Brockton Ave, Ste 201, Riverside, CA 92506
Accepts Aetna, BlueCross BlueShield, Cigna + 16 more
Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in diabetic emergency + 2 more ·
Read bio
Believing that prevention is the best medicine, Dr. Villegas makes health education a top priority for his practice. A San Gabriel Valley native who maintains strong ties with his home area, Dr. Villegas received his medical degree from the University of California-Davis and completed his residency ...Click to read more
Next available: Mon, Aug 24

Dr. Meisam Fekri, MD

Primary Care Doctor
4.80
·238 reviews
The doctor was attentive to my needs and helpful. If you’re in the area and need a doctor. Dr. Fekri is worth visiting! - Jan 31, 2025 by Marwan S.Click to read more
16.5 mi · 222 N Sunset Ave, Ste. F, West Covina, CA 91790
Accepts Aetna, BlueCross BlueShield, Cigna + 45 more
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Medical, STRAIGHT MEDICAL ONLY! NO HMO MEDICAL! No Caloptima No Alameda Alliance No Care First No LA Care Health Plan No Kaiser Permanente No Inland Empire Education and Training: Doctor of Medicine, Shiraz University of Medical Sciences School of Medicine Residency in Internal ...Click to read more
Next available: Tue, Aug 25

Dr. Katia Alfaro Felix, MD

Primary Care Doctor
4.43
·121 reviews
Dr Felix was spot on. Easy to talk to, listens. My first visit:) - Jun 21, 2023 by Susan G.Click to read more
20 mi · 1321 N Hbr Blvd, Ste 205, Fullerton, CA 92835
Accepts Aetna, BlueCross BlueShield, Cigna + 36 more
Accepting new patients

Dr. Sabrina Cooley, MD

Primary Care Doctor
3.57
·28 reviews
The conversation with the doctor felt very rushed and dismissive. I felt as if my questions were not fully being heard or answered. The door also kept opening while I was in the examining position which made me feel very uncomfortable.Click to read more
20 mi · 1321 N Hbr Blvd, Ste 205, Fullerton, CA 92835
Accepts Aetna, BlueCross BlueShield, Cigna + 36 more
Accepting new patientsExpertise in schizophrenia + 1 more

Dr. Natalie Marino, MD

Primary Care Doctor
4.05
·20 reviews
Overall this was a pretty productive doctor's appointment, I felt very heard and while she ran through things quickly she made sure to take the time to explain everything in depth. I also felt her knowledge of my medical conditions was a lot more up-to-date than previous doctors were which I find in...Click to read more
20 mi · 1321 N Hbr Blvd, Ste 205, Fullerton, CA 92835
Accepts Aetna, BlueCross BlueShield, Cigna + 36 more
Also offers video visits · Accepting new patients ·
Read bio
Dr. Natalie Marino is a compassionate physician board-certified in Family Medicine. She practices both Primary Care General Medicine, as well as Dermatology. She received her Medical Degree, as well as a Masters in Public Health, from the University of Pittsburgh. She completed her residency trainin...Click to read more

Dr. Ammar Dahodwala, MD

Primary Care Doctor
5.00
·30 reviews
15 mi · 8078 E Santa Ana Canyon Rd, Anaheim, CA 92808
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
Dr. Ammar Dahodwala is a board-certified physician specializing in Internal Medicine and Pediatrics. Originally from South Jersey right outside Philadelphia (go Phillies, Eagles, and Sixers!), Dr. Dahodwala completed his medical school training at Cooper Medical School of Rowan University where he w...Click to read more
Next available: Tue, Sep 15

Dr. Mehul Sonawala, MD

Primary Care Doctor
4.79
·48 reviews
great dr - Nov 21, 2024 by Sandra A.Click to read more
16.5 mi · 4013 Brockton Ave, Riverside, CA 92501
Accepts Aetna, BlueCross BlueShield, Cigna + 19 more
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in anxiety disorders + 9 more ·
Read bio
Dr. Mehul Sonawala is an accomplished physician with expertise in Internal Medicine, Bioengineering, and Cardiology. He earned his Doctor of Medicine from the University of Mumbai and completed his residency in Internal Medicine at Los Angeles General Medical Center. Additionally, he holds an MD in ...Click to read more
Next available: Thu, Aug 27

Dr. Brian T Lai, DO

Primary Care Doctor
5.00
·33 reviews
16 mi · 4300 Rose Dr, Yorba Linda, CA 92886
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Brian Lai is a board-certified Family Medicine physician who is born and raised in Southern California. He completed medical school at Western University of Health Sciences, College of Osteopathic Medicine of the Pacific in Pomona. After medical school, he completed his Family Medicine residency...Click to read more
Next available: Fri, Sep 11

Dr. Samuel Yang, DO

Primary Care Doctor
5.00
·31 reviews
Very nice and professional staff! Everyone was so helpful making sure I got everything I needed. Absolutely the best! ZERO wait time! Doctor came to check in on me within five minutes of being sat. - Aug 27, 2025 by Dasom K.Click to read more
18 mi · 955 W Imperial Hwy, Ste 110, Brea, CA 92821
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Samuel Yang is a board-certified family physician with Providence St. Jude Heritage Medical Group. He completed medical school at Touro College of Osteopathic Medicine before finishing residency and internship at Loma Linda University Medical Center. His clinical areas of interest include everyt...Click to read more
Next available: Mon, Aug 24

Dr. Jim Tran, DO

Primary Care Doctor
5.00
·33 reviews
16 mi · 4300 Rose Dr, Ste Q, Yorba Linda, CA 92886
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in atrial fibrillation and atrial flutter + 9 more ·
Read bio
There is nothing more important to me than the health and safety of your children. As a strong advocate of vaccinations, I believe that ensuring the children who visit our office are fully vaccinated is the single most important thing I can do to keep your children and your community safe. I earned ...Click to read more
Next available: Thu, Sep 24

Carbon Health Urgent Care - Placentia

Urgent Care Clinic
4.85
·73 reviews
I like to use Zocdoc for finding a doctor. It's convenient and save the time to make a appointment with the doctor. - Aug 6, 2025 by Lina W.Click to read more
17 mi · 858 N Rose Dr, Placentia, CA 92807
Accepts Aetna, BlueCross BlueShield, Cigna + 14 more
Accepting new patients · Excellent wait time ·
Read bio
Carbon Health combines smart technology and modern design to help make high-quality, inclusive, and personal healthcare accessible to all. With our convenient urgent care locations, we treat a full spectrum of health needs including cold, COVID and flu symptoms, urinary tract infections, sinus infec...Click to read more
Next available: today

Dr. Alexander Tran, DO

Primary Care Doctor
5.00
·10 reviews
Dr. Tran addressed all of my concerns. I felt reassured and comfortable at the and of our visit. by KBClick to read more
19 mi · 2000 E Chapman Ave, Ste 100, Fullerton, CA 92831
Accepts Aetna, BlueCross BlueShield, Cigna + 8 more
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Alexander Tran is an internist at Pyo Clinic in Upland, CA. He also offers virtual consultations. He welcomes adult patients with common illnesses, chronic diseases, and minor injuries that affect their quality of life. Dr. Tran understands patients' conditions and prepares individualized treat...Click to read more
Next available: Tue, Sep 1

Carbon Health Urgent Care - Corona

Urgent Care Clinic
4.85
·81 reviews
Short wait time, great bedside manner, friendly and knowledgeable staff, - Feb 6, 2026 by Jennifer F.Click to read more
18.5 mi · 3955 Bedford Canyon Rd, Ste 103, Corona, CA 92883
Accepts Aetna, BlueCross BlueShield, Cigna + 13 more
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Carbon Health combines smart technology and modern design to help make high-quality, inclusive, and personal healthcare accessible to all. With our convenient urgent care locations, we treat a full spectrum of health needs including cold, COVID and flu symptoms, urinary tract infections, sinus infec...Click to read more
Next available: today

Dr. Marisse Herrera, DO

Primary Care Doctor
4.80
·20 reviews
An overall great experience. Dr. Marisse was very informative and helpful. She was able to provide me with excellent care very efficiently. I would highly recommend this facility! It’s so clean and well kept, they do a really great job. - Feb 28, 2025 by David G.Click to read more
20 mi · 1440 N Harbor Blvd, Ste 110, Fullerton, CA 92835
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
*Please note: This is a cash-based monthly membership primary care practice. We do not accept any insurances. Marisse Herrera, DO, is a board-certified family medicine physician in Fullerton, California. She leads the medical team at Upper Echelon Medical, a practice dedicated to holistic wellness...Click to read more
Next available: Tue, Sep 1

Dr. Octaviano Roges, MD

Primary Care Doctor
5.00
·7 reviews
Great listener and very kind but more than anything very professional - Jul 28, 2026Click to read more
22 mi · 1211 W La Palma Ave, Ste 408, Anaheim, CA 92801
Accepts Aetna, BlueCross BlueShield, Cigna + 13 more
Accepting new patients · Highly recommended · Excellent wait time · Expertise in coronary artery disease + 9 more ·
Read bio
Dr. Rogés completed his Family Medicine residency at the University of California, San Diego in 2009 and is board certified in Family Practice. His work has been published in the "Expert Opinion" journal and he has been a reviewer for the prestigious "The Lancet". Dr. Rogés is passionate about the t...Click to read more
Next available: Mon, Aug 24

Dr. Larissa Isterabadi, MD

Pediatrician
4.97
·32 reviews
16 mi · 4300 Rose Dr, Ste E, Yorba Linda, CA 92886
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Also offers video visits · Accepting new patients · 25 years of experience · Highly recommended · Excellent wait time ·
Read bio
Please note that this provider only sees children and adolescents under the age of 18. There is nothing more important to me than the health and safety of your children. As a strong advocate of vaccinations, I believe that ensuring the children who visit our office are fully vaccinated is the singl...Click to read more
Next available: Mon, Aug 24

Dr. Christine Wilson, MD

Pediatrician
4.31
·16 reviews
16 mi · 4300 Rose Dr, Yorba Linda, CA 92886
Accepts Aetna, BlueCross BlueShield, Cigna + 13 more
Also offers video visits · Accepting new patients ·
Read bio
Dr. Christine Wilson is a general pediatrician in Yorba Linda, CA. She completed her undergraduate studies at Baylor University in Texas, and attended medical school at Texas A&M College of Medicine. She moved back to southern California to the area where she grew up to complete her internship and r...Click to read more

Dr. Mohammad Nabulsi, MD

Primary Care Doctor
4.93
·69 reviews
Great experience and very comfortable communication with staff and doctor. - Mar 23, 2024 by Anthony D.Click to read more
19.5 mi · 1201 W Whittier Blvd, La Habra, CA 90631
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Accepting new patients · Highly recommended · Excellent wait time · Expertise in chronic diabetes + 4 more ·
Read bio
My goal is to provide compassionate, comprehensive care by treating patients with evidence-based medicine. I am dedicated to ensuring that my patients maintain good health while addressing their preventive healthcare needs and managing active and chronic diseases across all ages. I earned my Doctor ...Click to read more
Next available: Thu, Sep 24

Carbon Health Urgent Care - La Habra

Urgent Care Clinic
4.91
·65 reviews
Yes I will definitely go back. It was such and easy process. Everyone was helpful and nice!!!! - Sep 10, 2024 by Alyssa M.Click to read more
20.5 mi · 1040 W Imperial Hwy, La Habra, CA 90631
Accepts Aetna, BlueCross BlueShield, Cigna + 14 more
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Carbon Health combines smart technology and modern design to help make high-quality, inclusive, and personal healthcare accessible to all. With our convenient urgent care locations, we treat a full spectrum of health needs including cold, COVID and flu symptoms, urinary tract infections, sinus infec...Click to read more
Next available: today

Dr. Jon Kramer, MD

Pediatrician
5.00
·31 reviews
16 mi · 4300 Rose Dr, Ste E, Yorba Linda, CA 92886
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time ·
Read bio
Please note that this provider only sees children and adolescents under the age of 18. I love being able to help families through the joys and challenges of raising happy, healthy children. It's a remarkable thing to sign a teenager's health form for college and remember the first time you saw that...Click to read more
Next available: Thu, Aug 27

Brittany A Camille, NP

Nurse Practitioner
4.95
·93 reviews
Great experience but way too many texts, calls and emails - Sep 24, 2025 by Kimberly J.Click to read more
16.5 mi · 4646 Brockton Ave, Ste 201, Riverside, CA 92506
Accepts Aetna, BlueCross BlueShield, Cigna + 5 more
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Brittany Camille brings over a decade of diverse nursing experience to Altais Medical Group Riverside. Her background in primary care and medical-surgical units has given her a comprehensive understanding of patient care needs. Brittany chose to become a Family Nurse Practitioner for the opportunity...Click to read more
Next available: Tue, Aug 25

Regina Robertson, NP

Family Nurse Practitioner
4.23
·30 reviews
Provider listened and provided good feedback and information pertaining to my issues. A clear plan was communicated to address my health problems. Regina was caring and empathetic. - Mar 31, 2026 by Marcia S.Click to read more
16.5 mi · 4646 Brockton Ave, Ste 201, Riverside, CA 92506
Accepts Aetna, BlueCross BlueShield, Cigna + 10 more
Accepting new patients ·
Read bio
Regina Robertson, MSN, APRN, FNP-BC, is a compassionate and experienced Nurse Practitioner with more than 30 years in nursing and advanced clinical care. She is dedicated to providing thoughtful, patient-centered primary care that focuses on both physical and emotional well-being. Regina holds a Mas...Click to read more
Next available: Wed, Aug 26

Hesper Tsai, PA

Physician Assistant
4.04
·27 reviews
I requested a female doctor. When I showed up to the appointment I mentioned that I had an appointment with a female doctor and they told me there was only a male there that day. I said I wished to reschedule since I booked a female and they only had a male and they said they'd have to charge me for...Click to read more
20 mi · 1321 N Hbr Blvd, Ste 205, Fullerton, CA 92835
Accepts Aetna, BlueCross BlueShield, Cigna + 36 more
Also offers video visits · Accepting new patients · Excellent wait time ·
Read bio
Ms. Hesper Tsai is a physician assistant practicing at Horizon Dermatology & Primary Care Medical Clinic in Torrance and Newport Beach, CA. She welcomes patients dealing with acne, rash, eczema, anxiety, hyperactivity disorder, and other common illnesses. Ms. Tsai maintains a friendly and non-judgm...Click to read more

Dr. David Joung, MD

Pediatrician
5.00
·31 reviews
16 mi · 4300 Rose Dr, Ste B, Yorba Linda, CA 92886
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. As a father of two adventurous and energetic boys, I understand the journey of parenthood, which often feels like a roller-coaster ride. When children are doing well and healthy, there is no greater joy and rew...Click to read more
Next available: Mon, Aug 31

Angela Huusfeldt, APRN, RN, NP

Family Nurse Practitioner
4.79
·19 reviews
Angela was very kind and offered great advice. I never felt judged at all and she shared some helpful ideas! - Jul 21, 2026 by Meagan P.Click to read more
17 mi · 500 S Anaheim Hills Rd, Ste 246, Anaheim, CA 92807
Accepts Aetna, BlueCross BlueShield, Cigna + 18 more
Accepting new patients · Highly recommended · Expertise in high cholesterol ·
Read bio
Angela Huusfeldt is a Family Medicine Nurse Practitioner dedicated to providing compassionate, patient-centered care for individuals and families across all stages of life. She earned her nursing degree from San Diego State University and began her career in the Neonatal Intensive Care Unit at CHOC ...Click to read more
Next available: Tue, Aug 25

Dr. Howard Pyo, DO

Family Physician
4.88
·1343 reviews
Was great in listening to my symptoms and answering all the questions I had about the prescriptions! - Jun 21, 2024Click to read more
19 mi · 2000 E Chapman Ave, Ste 100, Fullerton, CA 92831
Accepts Aetna, BlueCross BlueShield, Cigna + 8 more
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
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DISCLAIMER: Pyo Clinic is a learning facility but patient permission is ALWAYS sought before we include residents/students in their care. You can request that you are seen only by Dr Pyo without resident or student involvement as we fully respect your choice. Dr. Howard Pyo is a board-certified fam...Click to read more
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1-3 days

Average time it takes to be seen by a provider

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100k

Verified providers with a 4.8 average rating

Primary Care Physician
15+ years

In the business of finding quality care for patients

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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?

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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?

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