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315 verified UnitedHealthcare Doctors in Fontana, 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 05/22/2026
Availability last updated 05/22/2026

Carbon Health Urgent Care - Rancho Cucamonga

Urgent Care Clinic
4.79
·101 reviews
They need a primary doctor at the office. - Jan 24, 2023 by Jose S.Click to read more
6 mi · 7831 Monticello Ave, Ste 1102, Rancho Cucamonga, CA 91739
In-network · UnitedHealthcare
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. Mehul Sonawala, MD

Primary Care Doctor
4.78
·45 reviews
If your in need of an excellent primary provider, look no further then the services provided by Dr. Mehul Sonawala. It all starts with the receptionist who greets you with a smile to the medical assistant who goes out of her way to get to know you while taking your vitals. 3 words that come to mi...Click to read more
8 mi · 4013 Brockton Ave, Riverside, CA 92501
In-network · UnitedHealthcare
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, May 28

Dr. Rishi Majithia, MD

Primary Care Doctor
4.81
·332 reviews
I only went for a quick annual physical but the place was very clean. The doctor and staff are friendly and respectful. - Apr 8, 2025Click to read more
13 mi · 99 N San Antonio Ave, Ste 210, Upland, CA 91786
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Hello! Please review a few things when booking with me: Before booking, please make sure the location works for you. We are based out of Upland, California. We collect deductibles and copays at the time of service. If you have any questions or concerns, please call your insurance before your visi...Click to read more
Next available: today

Regina Robertson, NP

Family Nurse Practitioner
4.73
·15 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
8.5 mi · 4646 Brockton Ave, Ste 201, Riverside, CA 92506
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
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: today

Carbon Health Urgent Care - Eastvale

Urgent Care Clinic
4.85
·66 reviews
I love this place! I just wish it was a full service office and not just an urgent care - Mar 28, 2025 by Maria M.Click to read more
12 mi · 14117 Limonite Ave, Eastvale, CA 91752
In-network · UnitedHealthcare
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. Saagar Raju, MD

Family Physician
5.00
·2 reviews
Great experience with the doctor - Feb 17, 2026 by David W.Click to read more
8 mi · 4013 Brockton Ave, Riverside, CA 92501
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in chronic high blood pressure + 1 more ·
Read bio
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 your visi...Click to read more
Next available: Wed, May 27

Dr. Azhar Majeed, MD, FACP

Primary Care Doctor
4.79
·135 reviews
Exceptional physician with a wonderful bedside manner. Staff was very friendly and took me back right away - Jul 11, 2018 by Elizabeth T.Click to read more
16 mi · 255 E Bonita Ave, Pomona, CA 91767
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended · Expertise in diabetic emergency + 9 more ·
Read bio
Serving members of the Pomona, Upland, and San Antonio communities, Dr. Azhar Majeed provides quality internal care with attention to detail, compassion, and a gifted support staff. He uses only the most up-to-date equipment to ensure accurate diagnoses and safe treatment plans. Dr. Majeed offers a...Click to read more
Next available: Thu, May 28

Karmbir Takhar, APRN, NP

Family Nurse Practitioner
4.67
·3 reviews
I love this place, looks like home and make feel good. - Apr 24, 2026 by Nelly V.Click to read more
11.5 mi · 11306 Mountain View Ave, Ste C, Loma Linda, CA 92354
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Hello! Please review a few things when booking with me: Before booking, please make sure the location works for you. We collect deductibles, copays at the time of service. If you have any questions, please call your insurance before your visit. In addition, please be accurate about the reason for yo...Click to read more
Next available: Tue, May 26

Dr. Lubna Isho, DO

Primary Care Doctor
4.82
·248 reviews
Clean office and super friendly staff! Dr. Isho was so kind and made me feel very comfortable.Click to read more
18 mi · 250 W Bonita Ave, #150, Pomona, CA 91767
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25 years of experience · Highly recommended · Excellent wait time ·
Read bio
NOW OFFERING LASER AESTHETIC TREATMENTS INCLUDING SKIN TAG REMOVAL, LASER HAIR REMOVAL, FACELIFT, SMOOTHEYE, LIPLASE. Dr. Lubna Isho is a board certified highly experienced Family Practice Physician. Through Compassion, meticulous attention to detail, and an atmosphere where patients can speak free...Click to read more
Next available: Tue, May 26

Carbon Health Urgent Care - Corona

Urgent Care Clinic
4.85
·79 reviews
Very friendly staff with clear communication. Made me feel comfortable and offered necessary feedback. by Alexis G.Click to read more
19.5 mi · 3955 Bedford Canyon Rd, Ste 103, Corona, CA 92883
In-network · UnitedHealthcare
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. Kim Ngan Ngoc Tran, DO

Primary Care Doctor
5.00
·30 reviews
22 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in chronic high blood pressure + 6 more ·
Read bio
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
Next available: Wed, Jun 10

Dr. Eric Lee, DO

Primary Care Doctor
4.91
·76 reviews
The best service!!! - May 23, 2022 by Roman K.Click to read more
22 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
In-network · UnitedHealthcare
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: Thu, Jun 11

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
22 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
In-network · UnitedHealthcare
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: Tue, Jun 16

Dr. Lilian Li, DO

Primary Care Doctor
4.60
·30 reviews
22 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Dr. Lilian Li is a family medicine physician with St. Jude Heritage Medical Group practicing in Diamond Bar, CA.Click to read more
Next available: Wed, Jun 24

Dr. Karen Kay G Alfonso, MD

Pediatrician
5.00
·1 review
17 mi · 15855 Pomona Rincon Rd, Chino Hills, CA 91709
In-network · UnitedHealthcare
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: Fri, Jun 5

Dr. Natalie Garcia-Montoya, MD

Primary Care Doctor
4.89
·47 reviews
Dr. Garcia-Montoya and staff were so welcoming and have put me at ease. I did not feel rushed. I love the fact that they remind me of the Providence I used to go to while working at my previous job. Thank you! - Jun 5, 2024 by Charis G.Click to read more
24 mi · 8078 E Santa Ana Canyon Rd, Anaheim, CA 92808
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in underactive thyroid + 4 more ·
Read bio
Dr. Garcia-Montoya chose Family Medicine as a specialty to serve generations of families through comprehensive health care, including disease prevention. She earned her Doctor of Medicine degree from Ross University School of Medicine and completed both her internship and residency at the Univers...Click to read more
Next available: Thu, Jun 25

Dr. Brian T Lai, DO

Primary Care Doctor
5.00
·33 reviews
- Sep 17, 2025 by Brenda M.Click to read more
27 mi · 4300 Rose Dr, Yorba Linda, CA 92886
In-network · UnitedHealthcare
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: Mon, Jun 8

Dr. Christin Jane Tee, MD

Primary Care Doctor
5.00
·31 reviews
27 mi · 4300 Rose Dr, Ste R, Yorba Linda, CA 92886
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Christin Tee is a board-certified Family Medicine physician who values comprehensive patient care. She grew up in Taiwan before moving to the U.S. at age 13. She completed medical school at Tulane University School of Medicine and finished her residency at Emanate Health in West Covina, CA. Dr....Click to read more
Next available: Fri, Jun 26

Carbon Health Urgent Care - Placentia

Urgent Care Clinic
4.85
·71 reviews
Great clinic! Clean location and I was able to be seen immediately.Click to read more
27.5 mi · 858 N Rose Dr, Placentia, CA 92807
In-network · UnitedHealthcare
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. Jorge Galdamez, MD

Primary Care Doctor
5.00
·37 reviews
What a refreshing and pleasant experience Dr Galdamez is a clear communicator and he spent time going over every important detail. Much appreciated, thank you - Feb 7, 2024 by Richard P.Click to read more
30 mi · 955 W Imperial Hwy, Ste 110, Brea, CA 92821
In-network · UnitedHealthcare
Accepting new patients · 25 years of experience · Highly recommended · Expertise in chronic diabetes + 3 more ·
Read bio
Dr. Jorge Galdamez is a family medicine doctor in Santa Ana, California. He earned his Doctor of Medicine degree from the University of California, San Diego School of Medicine and completed both his internship and residency at the University of California, Irvine. Dr. Galdamez has been in practice ...Click to read more
Next available: Fri, Jun 19

Dr. Karoline Wang, MD

Primary Care Doctor
4.91
·35 reviews
Friendly professional - Sep 5, 2025 by Antonio N.Click to read more
32.5 mi · 13400 Jamboree Rd, Ste 200, Irvine, CA 92602
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Karoline Wang is a board-certified Internal Medicine doctor. She graduated from the Medical College of Wisconsin and completed her internship and residency training in internal Medicine at the California Pacific Medical Center in San Francisco. Dr. Wang also has a Masters in Public Health (MHSC)...Click to read more
Next available: Tue, May 26

Dr. Andrew Thua Thang Ngo, MD

Primary Care Doctor
5.00
·30 reviews
30 mi · 955 W Imperial Hwy, Ste 200, Brea, CA 92821
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
Dr. Andrew Ngo is a board-certified Family Medicine physician who has been practicing in Southern California for several years. He completed medical school at Saint Louis University School of Medicine before finishing his residency at PIH Health Whittier Family Medicine Residency Program. He was one...Click to read more
Next available: Mon, Jun 29

Dr. Vincent Pan, DO

Primary Care Doctor
4.88
·16 reviews
32.5 mi · 845 W La Veta Ave, Orange, CA 92868
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
Dr. Vincent Pan is a board certified Family Medicine physician. An Orange County native, he completed medical school at Touro Nevada College of Osteopathic Medicine before finishing his residency at Loma Linda University Health. He has clinical experience in FQHC, private practice, preventative heal...Click to read more
Next available: Tue, May 26

Angela Huusfeldt, APRN, RN, NP

Family Nurse Practitioner
4.69
·13 reviews
Angela was a great communicator and followed up when necessary after the appointment to confirm that I had my questions answered. The office did have me wait about 45-55 minutes after I arrived a bit late. I inputted the wrong address and called ahead that I’d be about 15 minutes late. The front d...Click to read more
26 mi · 500 S Anaheim Hills Rd, Ste 246, Anaheim, CA 92807
In-network · UnitedHealthcare
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, May 26

Dr. Billy Zhang, MD

Primary Care Doctor
5.00
·30 reviews
32.5 mi · 13400 Jamboree Rd, Ste 200, Irvine, CA 92602
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
Dr. Billy Zhang is a board-certified Internist with an eclectic background, having trained in Philadelphia, Pennsylvania and working as a primary care provider in Brooklyn, New York. Dr. Zhang's area of interest is providing patient centered care, understanding the best way to team up and address bo...Click to read more
Next available: Wed, May 27

Dr. Kate Erin Monahan, DO

Primary Care Doctor
5.00
·30 reviews
31 mi · 2501 E Chapman Ave, Orange, CA 92869
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Dr. Kate Monahan is an internist with St. Joseph Heritage Medical Group practicing in Orange, CAClick to read more
Next available: Wed, Jul 1

Leslyn Peralta, APRN

Family Nurse Practitioner
4.91
·46 reviews
Very friendly staff and the Dr was helpful and addressed all my concerns. - May 1, 2026 by John E.Click to read more
30.5 mi · 31571 Canyon Estates Dr, Ste 124, Lake Elsinore, CA 92532
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
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
Next available: today

Dr. Jon Kramer, MD

Pediatrician
5.00
·31 reviews
- Nov 8, 2025 by Aries A.Click to read more
27 mi · 4300 Rose Dr, Ste E, Yorba Linda, CA 92886
In-network · UnitedHealthcare
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, May 28

Dr. Jeremy Joseph Feck, DO

Primary Care Doctor
5.00
·4 reviews
32.5 mi · 845 W La Veta Ave, Orange, CA 92868
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
Dr. Jeremy Feck is board certified in Family Medicine. He completed medical school at Lake Erie College of Osteopathic Medicine before finishing his residency at Mercy Medical Center in Redding California. Dr. Feck’s areas of expertise and clinical areas of interest include care for patient’s of all...Click to read more
Next available: Thu, Jun 4

Dr. Henry Cheng, MD

Family Physician
4.64
·117 reviews
Really liked him, easy to understand, explained things well,! - Feb 15, 2016 by Rachelle M.Click to read more
26 mi · 500 S Anaheim Hills Rd, Ste 246, Anaheim, CA 92807
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time · Expertise in chronic diabetes + 4 more ·
Read bio
Dr. Henry Cheng is a board-certified family medicine physician. He received his medical degree from the American University of the Caribbean School of Medicine and completed his family medicine residency at Mercy Medical Center in Redding, California. Outside of his practice, Dr. Cheng enjoys mount...Click to read more
Next available: Tue, Jun 2

Dr. Mohammad Nabulsi, MD

Primary Care Doctor
4.93
·69 reviews
Good location, professional staff and speedy process. - Aug 7, 2025 by Christopher I.Click to read more
32 mi · 1201 W Whittier Blvd, La Habra, CA 90631
In-network · UnitedHealthcare
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: Mon, Jun 22

Carbon Health Urgent Care - La Habra

Urgent Care Clinic
4.90
·61 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
32.5 mi · 1040 W Imperial Hwy, La Habra, CA 90631
In-network · UnitedHealthcare
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. Larissa Isterabadi, MD

Pediatrician
4.97
·32 reviews
27 mi · 4300 Rose Dr, Ste E, Yorba Linda, CA 92886
In-network · UnitedHealthcare
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: Tue, Jun 2

Dr. David Joung, MD

Pediatrician
5.00
·30 reviews
27 mi · 4300 Rose Dr, Ste B, Yorba Linda, CA 92886
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended ·
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: Fri, Jun 5

Dr. Marco Paez, MD

Gastroenterologist
4.93
·75 reviews
Very nice he explained everything and was very kind and patient office staff very nice and welcoming - Jan 2, 2025 by Pamela V.Click to read more
27.5 mi · 16677 E Yorba Linda Blvd, Yorba Linda, CA 92886
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 1 more ·
Read bio
Dr. Marco A. Paez was born in Miami, Florida. He attended Miami-Dade College and Florida International University (FIU). He graduated with a competitive degree in Biological Sciences with a minor in Psychology. He then matriculated at Georgetown University School of Medicine in Washington, D.C. wher...Click to read more
Next available: Wed, Jun 3

Dr. Howard Pyo, DO

Family Physician
4.88
·1288 reviews
Highly recommended,very approachable and knowledgeable - Oct 6, 2023 by Juliane Rose P.Click to read more
30.5 mi · 2000 E Chapman Ave, Ste 100, Fullerton, CA 92831
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
DISCLAIMER: Pyo Clinic is a learning facility but patient permission is ALWAYS sought before we include residents/students in their care. If patient prefers to see only Dr. Pyo, we fully respect their choice and will not include residents or students in their care. All of our patients are GUARANTEED...Click to read more
Next available: tomorrow

Dr. Marienelle Banez, MD

Pediatrician
5.00
·30 reviews
27 mi · 4300 Rose Dr, Ste E, Yorba Linda, CA 92886
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended ·
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 sin...Click to read more
Next available: Thu, Jun 11

Dr. Christina Steinhauser, DO

Gastroenterologist (Virtual)
4.97
·92 reviews
Dr. was very detailed on reviewing my case. Useful information and tips. - Jul 3, 2025 by Xuan Dao D.Click to read more
Yorba Linda, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Dr. Christina Steinhauser is a former Chief of Medicine and Chief of Gastroenterology at Nellis Air Force Base, a current assistant professor at the Uniformed Services University of Health Sciences, and a former assistant professor at the University of Nevada, Las Vegas. She earned her Doctor of Ost...Click to read more
Next available: Wed, Jun 10

Dr. Roya Hormozdiaran, MD

Primary Care Doctor
4.84
·120 reviews
Clean office, helpful staff and Dr. Roya was very kind, patient and helpful in addressing my concerns. - Oct 24, 2025 by Maria B.Click to read more
35.5 mi · 62 Corporate Park, Ste 130, Irvine, CA 92606
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time ·
Read bio
Welcome, and thank you for considering my practice. I’m a board-certified internal medicine physician, trained at the University of Southern California (USC), with over 20 years of experience in patient care, proudly serving the Irvine community. As a primary care physician, I specialize in weight ...Click to read more
Next available: Thu, May 28

Dr. Marta Sarmiento, MD

Pediatrician
4.97
·32 reviews
Excellent staff, fun toys for kids while you wait, free parking. - May 1, 2019 by Andrea P.Click to read more
32.5 mi · 725 W La Veta Ave, Ste 240, Orange, CA 92868
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time ·
Read bio
Dr. Marta Sarmiento is a dedicated and diligent pediatrician serving the community of Orange, CA. She earned her Doctor of Medicine degree from the University of California, Irvine. Dr. Sarmiento runs her own practice, where she provides care for annual physicals, preventative care and immunizati...Click to read more
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Frequently asked questions

How can I make a same-day appointment with a Primary Care Doctor in Fontana who takes UnitedHealthcare insurance?

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Zocdoc is a free online service that helps patients find UnitedHealthcare Doctors in Fontana and book appointments instantly. You can search for UnitedHealthcare Doctors in Fontana by symptom or visit reason. 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 Fontana who takes UnitedHealthcare insurance?

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

How can I find a UnitedHealthcare Primary Care Doctor in Fontana who sees patients after hours?

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

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

You can use Zocdoc to find UnitedHealthcare Doctors in Fontana 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 Fontana?

Doctors in Fontana 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 UnitedHealthcare?

Most insurers provide coverage for video visits at the same cost as in-person visits. You can search on Zocdoc specifically for Doctors in Fontana who accept UnitedHealthcare 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 UnitedHealthcare Primary Care Doctor in Fontana 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 UnitedHealthcare Primary Care Doctor in Fontana who sees patients during the weekend?

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

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