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315 verified UnitedHealthcare Doctors in Diamond Bar, 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 06/04/2026
Availability last updated 06/04/2026

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
0.5 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
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: Tue, Jun 23

Dr. Aaron Lin, DO

Primary Care Doctor
4.94
·52 reviews
Dr. Lin not only listened but had my chart available and it seems like to was better versed in my medical history than I was. Which made me feel confident in his recommendations. He was super nice and made virtual visits feel comfortable! - Oct 10, 2022 by Sarilyn Y.Click to read more
0.5 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
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: Thu, Jul 2

Dr. Lilian Li, DO

Primary Care Doctor
4.60
·30 reviews
0.5 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: Tue, Jul 7

Dr. Kim Ngan Ngoc Tran, DO

Primary Care Doctor
5.00
·30 reviews
0.5 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, Jul 8

Dr. Lubna Isho, DO

Primary Care Doctor
4.82
·248 reviews
Dr. Isho is fantastic. She’s empathetic, knows her stuff, and truly cares. - Dec 21, 2023 by Melissa S.Click to read more
6 mi · 250 W Bonita Ave, #150, Pomona, CA 91767
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 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: today

Dr. Ammar Dahodwala, MD

Primary Care Doctor
5.00
·30 reviews
12 mi · 8078 E Santa Ana Canyon Rd, Anaheim, CA 92808
In-network · UnitedHealthcare
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: today

Dr. Scott Middleton, MD

Primary Care Doctor
5.00
·36 reviews
I am really a very satisfied patient in every way. There’s a reason for the high ratings. They are 100% accurate. - May 18, 2022 by Teresa "kanani" T.Click to read more
10.5 mi · 1201 W Whittier Blvd, La Habra, CA 90631
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
Helping his patients achieve and maintain good health is the goal of Dr. Middleton. He strives to educate his patients about what's necessary to attain good health and believes in actively involving them in creating a realistic plan to improve their health. Dr. Middleton earned his medical degree fr...Click to read more
Next available: Mon, Jun 8

Dr. Rishi Majithia, MD

Primary Care Doctor
4.80
·332 reviews
Very enjoyable doctor listens very well and is nice. Would come back again. by ZMClick to read more
9.5 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: Tue, Jun 16

Dr. Brian T Lai, DO

Primary Care Doctor
5.00
·33 reviews
- Sep 17, 2025 by Brenda M.Click to read more
9 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, Jun 25

Dr. Jim Tran, DO

Primary Care Doctor
5.00
·33 reviews
- Dec 9, 2024 by Setareh A.Click to read more
9 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: Tue, Jun 30

Dr. Biren Shah, MD

Primary Care Doctor
5.00
·33 reviews
- Mar 30, 2023 by Nicholas R.Click to read more
9.5 mi · 955 W Imperial Hwy, Ste 200, Brea, CA 92821
In-network · UnitedHealthcare
Accepting new patients · 25 years of experience · Highly recommended · Excellent wait time · Expertise in chronic diabetes + 9 more ·
Read bio
Dr. Biren Shah is a family medicine doctor in Brea, California, affiliated with St. Jude Medical Center. He earned his Doctor of Medicine degree from the American University of the Caribbean School of Medicine. Dr. Shah completed both his internship and residency at the University of Kansas Medical ...Click to read more
Next available: Mon, Jun 29

Carbon Health Urgent Care - Placentia

Urgent Care Clinic
4.85
·71 reviews
I would definitely recommend. Doctor was nice , it went quick. - Jan 21, 2024 by Michael B.Click to read more
10.5 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

Carbon Health Urgent Care - La Habra

Urgent Care Clinic
4.90
·61 reviews
The staff was friendly and prompt. I got a last minute appointment on a Sunday evening and was seen right away. - Jun 10, 2024 by KATRINA G.Click to read more
11.5 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

Carbon Health Urgent Care - Eastvale

Urgent Care Clinic
4.85
·67 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
13 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. Jon Kramer, MD

Pediatrician
5.00
·31 reviews
- Nov 8, 2025 by Aries A.Click to read more
9 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: Mon, Jun 8

Dr. Howard Pyo, DO

Family Physician
4.88
·1291 reviews
Incredible bedside manner, caring, thorough, insightful, and kind. Highly recommend him. - Aug 14, 2023 by Anna S.Click to read more
12 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. David Joung, MD

Pediatrician
5.00
·30 reviews
9 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: Thu, Jun 11

Dr. Karen Kay G Alfonso, MD

Pediatrician
5.00
·1 review
8 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: Mon, Jun 22

Dr. Sadia Moinuddin, MD, DABOM

Primary Care Doctor
4.72
·82 reviews
I really fw Dr. Moinuddin. I felt comfortable and heard. I'll definitely be going back to her (: - Jan 10, 2026 by Nicki Z.Click to read more
17 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, Jun 9

Carbon Health Urgent Care - Whittier

Urgent Care Clinic
4.94
·79 reviews
Great services… everyone was very efficient…Highly recommend - Sep 20, 2024 by blanca A.Click to read more
14 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. Larissa Isterabadi, MD

Pediatrician
4.97
·32 reviews
9 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 23

Dr. Julie Navarro, DO

Primary Care Doctor
4.69
·78 reviews
Dr. Navarro is kind and very thorough and she even retuned my call for a question after my visit. That’s rare. - Dec 16, 2025 by Paul B.Click to read more
17 mi · 12052 Imperial Hwy, Ste 102, Norwalk, CA 90650
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
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: Thu, Jun 11

Dr. Marco Paez, MD

Gastroenterologist
4.94
·77 reviews
I had a great experience with Dr. Paez and his receptionist, Urelly. They were so welcoming and made me feel very comfortable. Dr. Paez answered all of my questions and really took time with me. - Sep 13, 2024 by Stephanie S.Click to read more
10 mi · 16677 E Yorba Linda Blvd, Yorba Linda, CA 92886
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
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: Tue, Jun 23

Dr. Christina Steinhauser, DO

Gastroenterologist
4.97
·92 reviews
Dr Steinhauer was amazing. She was very informative answered all my questions and listened to my concerns. I highly recommend her. - Jan 16, 2025 by John B.Click to read more
10 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: Wed, Jun 24

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
16.5 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. Paola Ortiz, MD

Primary Care Doctor
4.57
·89 reviews
Very friendly staff and listen to everything that I said and answered my questions about what I was going through. - Jan 23, 2025 by Javier J.Click to read more
17 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: Tue, Jun 23

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
13 mi · 500 S Anaheim Hills Rd, Ste 246, Anaheim, CA 92807
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
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: tomorrow

Dr. Jeremy Joseph Feck, DO

Primary Care Doctor
5.00
·4 reviews
17.5 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: Fri, Jun 19

Dr. Vincent Pan, DO

Primary Care Doctor
4.88
·16 reviews
17.5 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: Mon, Jun 22

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

Primary Care Doctor
4.87
·147 reviews
Excellent visit. Dr. Chen and the staff were very friendly, professional and helpful. by NWClick to read more
17 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: Wed, Jul 1

Carbon Health Urgent Care - Cerritos

Urgent Care Clinic
4.81
·74 reviews
It was great. short wait times, amazing bedside manner, was in and out fairly quickly. - Nov 16, 2025 by Tim L.Click to read more
18 mi · 13299 South St, Cerritos, CA 90703
In-network · UnitedHealthcare
Accepting new patients ·
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

Dr. Henry Cheng, MD

Family Physician
4.64
·118 reviews
Really liked him, easy to understand, explained things well,! - Feb 15, 2016 by Rachelle M.Click to read more
13 mi · 500 S Anaheim Hills Rd, Ste 246, Anaheim, CA 92807
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time ·
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: Wed, Jun 10

Dr. Wasim Raja, MD

Primary Care Doctor
4.85
·480 reviews
Excelent customer service! Dr is very knowledgeable and listened to all my concerns. Definitely will recommend him! - Mar 22, 2024 by Marisol G.Click to read more
23 mi · 11100 Warner Ave, Ste 110, Fountain Valley, CA 92708
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Wasim Raja is a skilled and experienced internist. He currently runs his own practice, based in Fountain Valley, CA, and holds licenses to practice in Texas, Nebraska, and Colorado. Fluency in English, Urdu, and Punjabi has made him accessible to various culturally diverse communities. Dr. Raj...Click to read more
Next available: today

Carbon Health Urgent Care - Cypress

Urgent Care Clinic
4.81
·68 reviews
Great experience didn’t wait long great staff and they were able to flush my ears out in a timely manner - Mar 13, 2026 by Lucia V.Click to read more
19.5 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. Karoline Wang, MD

Primary Care Doctor
4.91
·35 reviews
Friendly professional - Sep 5, 2025 by Antonio N.Click to read more
21 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: Thu, Jun 11

Carbon Health Urgent Care - Pasadena

Urgent Care Clinic
4.69
·309 reviews
Excellent. Very knowledgeable clinician. Able & open to answer all my questions and made me feel at ease. by SVClick to read more
20.5 mi · 600 E Colorado Blvd, Ste 120, Pasadena, CA 91101
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
·30 reviews
21 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: Fri, Jun 26

Carbon Health Urgent Care - Los Alamitos

Urgent Care Clinic
4.73
·70 reviews
gave easy to understand thorough post visit plan and instruction - Jun 25, 2025 by janice B.Click to read more
21.5 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. Sarah O'Loughlin, MD

Pediatrician
4.91
·32 reviews
- Jan 22, 2024 by Scarlett G.Click to read more
16.5 mi · 2501 E Chapman Ave, Orange, CA 92869
In-network · UnitedHealthcare
Accepting new patients · 22 years of experience · Highly recommended ·
Read bio
Dr. O'Loughlin believes in preventative medicine and is dedicated to assisting children and their parents as they make decisions about living a healthy lifestyle. As a parent herself, she values the insights that parents provide on the health and well-being of their children when discussing importan...Click to read more
Next available: Wed, Jun 10

Sarah Levitt, PA-C

Physician Assistant (Gastroenterology)
5.00
·6 reviews
- Apr 13, 2026 by Eric S.Click to read more
15 mi · 710 N Euclid St, Ste 210, Anaheim, CA 92801
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: Thu, Jul 2
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Zocdoc lets you search specifically for a Primary Care Doctor in Diamond Bar 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 Diamond Bar?

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

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

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

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

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

You can use Zocdoc to find UnitedHealthcare Doctors in Diamond Bar 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 Diamond Bar?

Doctors in Diamond Bar 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 Diamond Bar 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 Diamond Bar 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 Diamond Bar who sees patients during the weekend?

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

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Zocdoc›Doctors›Orange County, CA›Diamond Bar, CA›UnitedHealthcare