Browse specialties
Chiropractors
Dentists
Dermatologists
Ear, Nose & Throat Doctors
Endocrinologists
Eye Doctors
OBGYNs
Ophthalmologists
Optometrists
Orthopedic Surgeons
Podiatrists
Primary Care Doctors
Psychiatrists
Psychologists
Therapist-Counselors
See all specialties A-Z
Zocdoc
HomeAbout usPressCareersHelp
Contact
service@zocdoc.com855-962-3621
Discover
The Paper Gown: Stories for and about patientsThe Script: Insights for doctorsCommunity StandardsData and privacyVerified reviewsTech BlogNew
Are you a top doctor or health service?
Try Zo, your AI Phone AssistantList your practice on ZocdocLearn about Zocdoc for Health SystemsBecome an EHR partner
Insurance Carriers
Top Specialties
Welcome to Zocdoc!
Book local doctors who take your insurance
Sign up
For providers
Grow your practice
For patients
Zocdoc
HomeAbout usPressCareersHelp
Contact
service@zocdoc.com855-962-3621
Discover
The Paper Gown: Stories for and about patientsThe Script: Insights for doctorsCommunity StandardsData and privacyVerified reviewsTech BlogNew
Are you a top doctor or health service?
Try Zo, your AI Phone AssistantList your practice on ZocdocLearn about Zocdoc for Health SystemsBecome an EHR partner
Insurance Carriers
Top Specialties
HelpList your practice on Zocdoc
Sign up

Find an in-network doctor from over 1,000 insurance plans

Add your insurance to see in-network doctors
insurance link for 300
insurance link for 307
insurance link for 323
insurance link for 356
insurance link for 324
See all (1,000+)
315 verified UnitedHealthcare Doctors in Fullerton, CA
Zocdoc verifies all providers before they can appear in Zocdoc search results. Every provider that appears in search is open to new patients.
In-network providersInsurance logo
Availability last updated 04/22/2026
Availability last updated 04/22/2026

Dr. Johnny Wu, MD

Primary Care Doctor
5.00
·1 review
It was quick, simple, and helpful. Got everything I needed in matter of minutes. They understood my specific request and adapted quickly. - Nov 13, 2025 by Simon B.Click to read more
0 mi · 2141 N Harbor Blvd, Fullerton, CA 92835
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper respiratory infection (uri) + 2 more ·
Read bio
Dr. Johnny Wu is a board-certified Internal Medicine physician with St. Jude Heritage Medical Group. He received his medical degree from Saint Louis University in 2019 and finished Internal Medicine residency at the University of Illinois, Chicago in 2022. Dr. Wu's clinical interests include preven...Click to read more
Next available: Fri, Apr 24

Carbon Health Urgent Care - La Habra

Urgent Care Clinic
4.90
·60 reviews
It was very upbeat and streamlined. In and out and my meds were sent to my Pharmacy. Excellent experience! - Oct 25, 2025 by HAROLD G.Click to read more
2.5 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. Howard Pyo, DO

Family Physician
4.88
·1265 reviews
Great easy appointment. Wonderful provider who really wants to help. - Jan 24, 2024 by Allison M.Click to read more
2.5 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. Jim Tran, DO

Primary Care Doctor
5.00
·33 reviews
- Dec 9, 2024 by Setareh A.Click to read more
5 mi · 4300 Rose Dr, Ste Q, Yorba Linda, CA 92886
In-network · UnitedHealthcare
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, May 7

Dr. Brian T Lai, DO

Primary Care Doctor
5.00
·3 reviews
- Sep 17, 2025 by Brenda M.Click to read more
5 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: Thu, May 7

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
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. Kate Erin Monahan, DO

Primary Care Doctor
9.5 mi · 2501 E Chapman Ave, Orange, CA 92869
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Dr. Kate Monahan is an internist with St. Joseph Heritage Medical Group practicing in Orange, CAClick to read more
Next available: Fri, Apr 24

Dr. Sadia Moinuddin, MD, DABOM

Primary Care Doctor
4.71
·78 reviews
Doctors & staff member here are so kind and very professional. Thank you for such a great medical attention to each patient. by FSClick to read more
8.5 mi · 12052 Imperial Hwy, Ste 102, Norwalk, CA 90650
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
PLEASE CONFIRM YOUR APPOINTMENT WITHIN 24 HOURS OF YOUR BOOKING VIA TEXT OR CALL. (Your appointment might be canceled if not confirmed 24 hours before your appointment time) Dr. Sadia Moinuddin, MD, FACP, DABOM, is a board-certified internal medicine physician who takes a compassionate, patient-cen...Click to read more
Next available: Tue, Apr 28

Carbon Health Urgent Care - Cerritos

Urgent Care Clinic
4.85
·73 reviews
Very efficient and caring service. - May 29, 2024 by Caroline B.Click to read more
7 mi · 13299 South St, Cerritos, CA 90703
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Carbon Health combines smart technology and modern design to make high-quality, inclusive, and personal healthcare accessible to all. Our convenient urgent care locations treat a full spectrum of health needs, including cold, COVID and flu symptoms, urinary tract infections, sinus infections, abdomi...Click to read more
Next available: today

Carbon Health Urgent Care - Cypress

Urgent Care Clinic
4.82
·65 reviews
I was seen promptly, the provider was clear and very easy to communicate with, listened to my concernsClick to read more
8 mi · 10165 Valley View St, Cypress, CA 90630
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. Julie Navarro, DO

Primary Care Doctor (Virtual)
4.68
·75 reviews
Patient and thorough. Good bedside manner. Like her so far. - Jun 10, 2025 by Kendra P.Click to read more
Norwalk, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits ·
Read bio
PLEASE CONFIRM YOUR APPOINTMENT WITHIN 24 HOURS OF YOUR BOOKING VIA TEXT OR CALL. (Your appointment might be canceled if not confirmed 24 hours before your appointment time) Dr. Julie Navarro is a skilled and experienced family physician. She sees patients in person at Copa De Oro Medical Group in ...Click to read more
Next available: Wed, May 6

Dr. Cynthia Chen-Joea, DO, FAAFP, MPH

Primary Care Doctor
4.87
·146 reviews
This was a great experience and the staff was amazing. I highly recommend this doctor and the staff!! by Lori R.Click to read more
8.5 mi · 12052 Imperial Hwy, Ste 102, Norwalk, CA 90650
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
PLEASE CONFIRM YOUR APPOINTMENT WITHIN 24 HOURS OF YOUR BOOKING VIA TEXT OR CALL. (Your appointment might be canceled if not confirmed 24 hours before your appointment time) Dr. Cynthia Chen-Joea is a highly skilled family physician in Norwalk, CA. She offers in-person and virtual services at Copa ...Click to read more
Next available: Thu, May 7

Dr. Jeremy Joseph Feck, DO

Primary Care Doctor
8.5 mi · 845 W La Veta Ave, Orange, CA 92868
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
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: Wed, May 6

Dr. Paola Ortiz, MD

Primary Care Doctor
4.56
·87 reviews
Dr. Ortiz listened to all my concerns and ordered tests to address each in turn.Click to read more
8.5 mi · 12052 Imperial Hwy, Ste 102, Norwalk, CA 90650
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time ·
Read bio
PLEASE CONFIRM YOUR APPOINTMENT WITHIN 24 HOURS OF YOUR BOOKING VIA TEXT OR CALL. (Your appointment might be canceled if not confirmed 24 hours before your appointment time) Please confirm your appointment within 24 hours via text or call. I earned my Doctor of Medicine from Ross University School ...Click to read more
Next available: Fri, May 15

Dr. Vincent Pan, DO

Primary Care Doctor
8.5 mi · 845 W La Veta Ave, Orange, CA 92868
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
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: Mon, May 11

Dr. Eddie Wilcox Shum, DO

Primary Care Doctor
9.5 mi · 2501 E Chapman Ave, Ste 306, Orange, CA 92869
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Dr. Eddie Shum is a Family Medicine physician practicing in Orange County, CA.Click to read more
Next available: Thu, May 14

Dr. Jon Kramer, MD

Pediatrician
5.00
·31 reviews
- Nov 8, 2025 by Aries A.Click to read more
5 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: Fri, Apr 24

Carbon Health Urgent Care - Los Alamitos

Urgent Care Clinic
4.72
·65 reviews
gave easy to understand thorough post visit plan and instruction - Jun 25, 2025 by janice B.Click to read more
10 mi · 3851 Katella Ave, Ste 100, Los Alamitos, CA 90720
In-network · UnitedHealthcare
Accepting new patients ·
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
11 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
In-network · UnitedHealthcare
Accepting new patients · 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: Tue, May 5

Dr. David Joung, MD

Pediatrician
5.00
·30 reviews
5 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: Wed, Apr 29

Dr. Aaron Lin, DO

Primary Care Doctor
4.94
·52 reviews
My chart is a little buggy. - Jul 19, 2022 by Jeffrey J.Click to read more
11 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, May 12

Dr. Eric Lee, DO

Primary Care Doctor
4.91
·76 reviews
The best service!!! - May 23, 2022 by Roman K.Click to read more
11 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: Fri, May 15

Dr. Larissa Isterabadi, MD

Pediatrician
4.97
·32 reviews
5 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, May 5

Carbon Health Urgent Care - Whittier

Urgent Care Clinic
4.99
·76 reviews
Easiest and fastest time I’ve ever been to a doctor! Found my spot Thank you - Nov 12, 2025 by eric N.Click to read more
9 mi · 11806 Whittier Blvd, Whittier, CA 90601
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
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. Karoline Wang, MD

Primary Care Doctor
4.40
·5 reviews
Friendly professional - Sep 5, 2025 by Antonio N.Click to read more
14.5 mi · 13400 Jamboree Rd, Ste 200, Irvine, CA 92602
In-network · UnitedHealthcare
Accepting new patients · 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: Fri, Apr 24

Dr. Marco Paez, MD

Gastroenterologist
4.93
·71 reviews
My experience at Dr. Paez's office was excellent: I arrived early and was seen early. He has an engaging manner while still being focused on the details of and motivation for the plan of care. I was able to schedule another appointment within a week: super-grateful for the efficiency of the staff as...Click to read more
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: Fri, May 15

Dr. Christina Steinhauser, DO

Gastroenterologist
4.97
·88 reviews
She was extremely informative and helpful. I hope she helps me. - Feb 4, 2025 by Aida D.Click to read more
5 mi · 16677 E Yorba Linda Blvd, Yorba Linda, CA 92886
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 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: Fri, May 15

Dr. Marienelle Banez, MD

Pediatrician
5.00
·30 reviews
5 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, May 14

Li Miao Wang, PA-C

Physician Assistant (Virtual)
4.94
·31 reviews
The Doctor was very attentive & understanding of my concerns & provided me with a clear care plan. - Jan 26, 2026 by Christopher D.Click to read more
Santa Ana, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
My name is Li Miao Wang, but I usually go by Li. I was born in Graz, Austria, and moved to the US in 2011 when I was a sophomore in high school. I attended the University of California, Santa Barbara and got a bachelors in Biopsychology. I received my Master's degree in Physician Assistant Studies a...Click to read more

Sheyanne Espiritu, APRN, NP

Family Nurse Practitioner
4.72
·58 reviews
She was patient and caring during my appointment. She was also super informative. by XBClick to read more
10.5 mi · 218 W 4th St U, Santa Ana, CA 92701
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
I’ve been caring for patients for over seven years, first as a registered nurse and now as a nurse practitioner since 2023. My experience spans both hospital and outpatient settings, with the last four years focused on primary care for patients of all ages, along with urgent care in both virtual and...Click to read more
Next available: tomorrow

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
8.5 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

Carbon Health Urgent Care - Long Beach, Carson St.

Urgent Care Clinic
4.72
·83 reviews
The office was very clean, the staff was friendly and I was able to ask all of the questions I had. I had to wait about 20 minutes even though I had an appointment, but it wasn't too bad. I would definitely go back. - Dec 17, 2024 by Anna H.Click to read more
14 mi · 2010 E Carson Street, Long Beach, CA 90807
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. Billy Zhang, MD

Primary Care Doctor
5.00
·1 review
14.5 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: Tue, May 12

Carbon Health Urgent Care - Costa Mesa

Urgent Care Clinic
4.83
·101 reviews
Amazing care, attentive, efficient, prompt and helpful! highly recommend, nice clean location! - Jun 24, 2023 by Sarah T.Click to read more
14.5 mi · 3195 Harbor Blvd, Ste 3 Costa Mesa, Costa Mesa, CA 92626
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. Roya Hormozdiaran, MD

Primary Care Doctor
4.84
·110 reviews
Super nice doctor!!! Really listens and understands! - Jan 9, 2026 by Randi M.Click to read more
15 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: Mon, May 4

Dr. Jeffrey Messinger, MD

Pediatrician
4.94
·33 reviews
Doctor was very straightforward with what was going on with my daughter and when I should be concerned and when to bring her to the doctor or understand that she will be ok and recover at home. He was good with my daughter and made her feel comfortable. - Sep 15, 2022 by Ashley D.Click to read more
11.5 mi · 2212 E 4th St, Santa Ana, CA 92705
In-network · UnitedHealthcare
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. Board-certified in pediatrics, Dr. Messinger earned his Doctor of Medicine from Philadelphia University and Thomas Jefferson University. He completed his residency at the University of California, Irvine. His p...Click to read more
Next available: tomorrow

Dr. Paul Usborne, MD

Primary Care Doctor
4.78
·89 reviews
Dr was very patient with me and listened very well. - Nov 19, 2024 by Mary M.Click to read more
14 mi · 256 W San Bernardino Rd, Covina, CA 91723
In-network · UnitedHealthcare
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
Next available: Mon, Jun 22

Dr. Seyedehsan Navabi, MD

Gastroenterologist
4.93
·144 reviews
Excellent, friendly, knowledgeable service from whole staff of this office - Oct 8, 2024 by Allison R.Click to read more
10 mi · 3851 Katella Ave, Ste 205, Los Alamitos, CA 90720
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 1 more ·
Read bio
Dr. Seyedehsan (“Ehsan”) Navabi is a former Director of both the Inflammatory Bowel disease and Gastrointestinal Motility Disorders at the Rutgers New Jersey Medical School where he served as Assistant Professor of Gastroenterology. He obtained his medical degree from Tabriz University of Medica...Click to read more
Next available: Thu, May 7

Carbon Health Urgent Care Long Beach

Urgent Care Clinic
4.64
·80 reviews
the staff were courteous. - Dec 27, 2025 by Virginia N.Click to read more
17 mi · 555 E Ocean Blvd, Ste 110, Long Beach, CA 90802
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

Sarah Levitt, PA-C

Physician Assistant (Gastroenterology)
5.00
·3 reviews
10 mi · 5455 Garden Grove Blvd Suite 230, Westminster, CA 92683
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Sarah Levitt, PA-C, is a board-certified Physician Assistant, providing quality patient care at Gastrointestinal & Liver Consultants in Santa Ana, Irvine, Anaheim, and Westminster, California. She graduated from California State University Long Beach with a Bachelor of Science in Kinesiology Exerc...Click to read more
Next available: Tue, May 19
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
Easy same day appointment and was able to pick up my prescription within an hour of finishing my visit. Highly recommend
Jordan M
Doctor is great. Great experience using Zocdoc and they even had availability sooner than the provider website
Kaleb M
I had resisted counseling for a long time...I could not find anyone who had room for me...Enter Zocdoc...I am so grateful.
Victoria L
NPR
New York Times
Yahoo
Self
Verge
Wall Street Journal
Frequently asked questions

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

On average, patients who use Zocdoc can search for a Primary Care Doctor in Fullerton who takes UnitedHealthcare insurance, 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 Fullerton who accept UnitedHealthcare insurance and make an appointment online.

How can I find a Primary Care Doctor in Fullerton who takes UnitedHealthcare?

Zocdoc lets you search specifically for a Primary Care Doctor in Fullerton who takes UnitedHealthcare. 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 UnitedHealthcare Primary Care Doctor in Fullerton?

Zocdoc is a free online service that helps patients find UnitedHealthcare Doctors in Fullerton and book appointments instantly. You can search for UnitedHealthcare Doctors in Fullerton 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 Fullerton who takes UnitedHealthcare insurance?

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

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

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

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

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

Doctors in Fullerton 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 Fullerton 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 Fullerton 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 Fullerton who sees patients during the weekend?

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

Find doctors