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315 verified UnitedHealthcare Gastroenterologists in Irvine, 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 05/24/2026
Availability last updated 05/24/2026

Dr. Yu-Xuan Dang, MD

Internist (Virtual)
4.82
·215 reviews
The stuff member and doctor are both nice and professional, also the place is nice and clean too. Recommended.Click to read more
Mountain View, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time · Expertise in chronic high blood pressure + 6 more ·
Read bio
Dr. John (Yu-Xuan) Dang is a native of the Bay Area, having lived in the South Bay for the last 30 years. He has been practicing medicine in the Sunnyvale/Mountain View area since 2018. Dr. Dang earned his Bachelor's degree from the University of California, Berkeley, and received his Doctor of Medi...Click to read more
Next available: Thu, Jun 18

Anna Mekhed

Family Nurse Practitioner (Virtual)
4.87
·77 reviews
I was able to get my annual check up done with labs. Satisfied with service I received. by ARClick to read more
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
This provider currently accepts United Healthcare, Aetna, self pay (payable prior to the visit) and Medicare Part B Fee For Service Original Medicare insurance without secondary insurance, such as Medi-Cal or Medigap. Please reach out to confirm insurance and verify co-payment, deductible, or co-ins...Click to read more
Next available: today

Anna Mekhed

Family Nurse Practitioner (Virtual)
4.87
·77 reviews
I was able to get my annual check up done with labs. Satisfied with service I received. by ARClick to read more
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
This provider currently accepts United Healthcare, Aetna, self pay (payable prior to the visit) and Medicare Part B Fee For Service Original Medicare insurance without secondary insurance, such as Medi-Cal or Medigap. Please reach out to confirm insurance and verify co-payment, deductible, or co-ins...Click to read more
Next available: today

Christie Morrison, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
4.97
·31 reviews
- Apr 11, 2026 by Lisa M.Click to read more
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Christie Morrison is a nurse practitioner who brings over a decade of gastroenterology-specific experience to Oshi Health. At Oshi, she cares for GI patients virtually and manages a team of GI providers. She also works part-time at the Texas Digestive Disease Center in San Antonio, treating patients...Click to read more
Next available: Wed, May 27

Bhavana Akotia, PA-C

Physician Assistant (Gastroenterology) (Virtual)
4.93
·29 reviews
- Apr 3, 2026 by Sherraine E.Click to read more
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Bhavana Akotia is a seasoned physician assistant with over two decades of experience in gastroenterology. Since working with Oshi Health as an independent contractor, she’s seen how effective a collaborative team approach can be in treating gastrointestinal (GI) conditions. Previously, Bhavana prac...Click to read more
Next available: Wed, May 27

Sarah O'Rourke, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
5.00
·30 reviews
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended ·
Read bio
Sarah O’Rourke is a seasoned nurse practitioner with a background in treating patients with inflammatory bowel disease (IBD). In her role at Oshi Health, she’s passionate about educating IBD patients and helping them manage and prevent symptom flares. Prior to joining Oshi, Sarah worked with leadi...Click to read more
Next available: Wed, May 27

Theresa Obonyano, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
5.00
·32 reviews
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Theresa Obonyano sees patients virtually with Oshi Health. After you select your appointment time on Zocdoc, you’ll receive an email with instructions to complete your Oshi account and intake form. You must complete those steps in order to have your virtual visit. Theresa Obonyano is a family nurs...Click to read more
Next available: Wed, May 27

Rebecca Humphries, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
4.94
·35 reviews
I like that she took the time to evaluate me. I felt comfortable and I liked that she listened to my concerns. - Feb 12, 2026 by Norma B.Click to read more
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · 18 years of experience · Offers video visits · Highly recommended ·
Read bio
Rebecca Humphries is a compassionate and experienced nurse practitioner with over 15 years of focused work in gastroenterology. Her deep understanding of gastrointestinal (GI) health, paired with her warm, whole-person approach to care, helps patients feel seen, heard, and supported. She was even re...Click to read more
Next available: Wed, May 27

Chimdi Mfebe, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
4.87
·31 reviews
Never got a phone call!!!!! - Feb 2, 2026 by Amy R.Click to read more
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Expertise in acute stomach inflammation/infection + 1 more ·
Read bio
Chimdi Mfebe sees patients virtually with Oshi Health. After you select your appointment time on Zocdoc, you’ll receive an email with instructions to complete your Oshi account and intake form. You must complete those steps in order to have your virtual visit. Chimdi Mfebe is a nurse practitioner ...Click to read more
Next available: Wed, May 27

Rachel Oliver, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
4.97
·30 reviews
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Rachel Oliver sees patients virtually with Oshi Health. After you select your appointment time on Zocdoc, you’ll receive an email with instructions to complete your Oshi account and intake form. You must complete those steps in order to have your virtual visit. Rachel Oliver is a gastrointestinal ...Click to read more
Next available: Wed, May 27

Ashley Anderson, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
4.97
·32 reviews
Dr. Anderson was very polite, knowledgeable and such a big help. I appreciated her for explaining things and answering all of my questions. I’ve searched for help with my condition and I have a feeling she will help me. - Mar 25, 2026 by Kiara D.Click to read more
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Ashley Anderson, a board-certified family nurse practitioner, brings over 20 years of experience to Oshi Health. She aims to provide compassionate care that improves symptoms and elevates patient quality of life. Before joining Oshi, Ashley spent 17 years in a private outpatient gastroenterology a...Click to read more
Next available: Thu, May 28

Robbie Leinart, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
5.00
·31 reviews
Very informative, Great energy, and efficient service, - Apr 7, 2026 by Latisha D.Click to read more
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time · Expertise in chronic indigestion without clear cause ·
Read bio
Robbie Leinart sees patients virtually with Oshi Health. After you select your appointment time on Zocdoc, you’ll receive an email with instructions to complete your Oshi account and intake form. You must complete those steps in order to have your virtual visit. Robbie Leinart is an Adult Health N...Click to read more
Next available: Thu, May 28

Jan Seiler, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
4.97
·33 reviews
Jan was very kind, understanding, and listened to my concerns. It was great to actually felt heard by a doctor instead of just dismissed. - Apr 7, 2026 by Avery B.Click to read more
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Expertise in acute stomach inflammation/infection + 1 more ·
Read bio
Jan Seiler has worked as a gastroenterology nurse practitioner for over two decades. At Oshi Health, she takes a whole-person approach to gastrointestinal (GI) care, making sure to take the time to listen to patient needs and concerns. Before working at Oshi, she worked in a large brick-and-mortar...Click to read more
Next available: Mon, Jun 1

Ji Soo (Claire) Choi, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
4.97
·38 reviews
Claire is highly intelligent and a great provider. She is thoughtful, listens and is very knowledgeable about gastrointestinal issues. I strongly recommend going to Claire. - Mar 5, 2026 by Domenic T.Click to read more
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Ji Soo (Claire) sees patients virtually with Oshi Health. After you select your appointment time on Zocdoc, you’ll receive an email with instructions to complete your Oshi account and intake form. You must complete those steps in order to have your virtual visit. Ji Soo (Claire) Choi is an experie...Click to read more
Next available: Mon, Jun 1

Louise Babikow, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
5.00
·32 reviews
- Mar 10, 2026 by Maia M.Click to read more
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Louise Babikow sees patients virtually with Oshi Health. After you select your appointment time on Zocdoc, you’ll receive an email with instructions to complete your Oshi account and intake form. You must complete those steps in order to have your virtual visit. Louise Babikow is an experienced ce...Click to read more
Next available: Fri, Jun 5

Dr. Javed Sadiq, MD

Gastroenterologist
4.88
·195 reviews
Great experience. Excellent Doctor who showed genuine concern and interest - Jul 15, 2024 by Angela H.Click to read more
3.5 mi · 1400 Reynolds Ave, Ste 100, Irvine, CA 92614
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 3 more ·
Read bio
*Please verify your insurance coverage prior to scheduling an appointment. Patients with HMO plans must obtain prior authorization before being seen at our practice.Click to read more

Dr. Essam Quraishi, MD

Gastroenterologist
4.72
·76 reviews
Yes I will go back. Dr.Q. Was very nice & comfortable to talk to . - Jun 18, 2025 by Anna D.Click to read more
3.5 mi · 1400 Reynolds Ave, Ste 100, Irvine, CA 92614
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Expertise in irritable bowel syndrome (ibs) + 4 more ·
Read bio
*Please verify your insurance coverage prior to scheduling an appointment. Patients with HMO plans must obtain prior authorization before being seen at our practice. Dr. Essam Quraishi is the founder and President of Gastrointestinal and Liver Consultants, Inc. Dr. Quraishi graduated from medical s...Click to read more

Dr. Essam Quraishi, MD

Gastroenterologist (Virtual)
4.72
·76 reviews
Yes I will go back. Dr.Q. Was very nice & comfortable to talk to . - Jun 18, 2025 by Anna D.Click to read more
Santa Ana, CA
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Offers video visits · Expertise in irritable bowel syndrome (ibs) + 4 more ·
Read bio
*Please verify your insurance coverage prior to scheduling an appointment. Patients with HMO plans must obtain prior authorization before being seen at our practice. Dr. Essam Quraishi is the founder and President of Gastrointestinal and Liver Consultants, Inc. Dr. Quraishi graduated from medical s...Click to read more

Dr. Essam Quraishi, MD

Gastroenterologist
4.72
·76 reviews
Yes I will go back. Dr.Q. Was very nice & comfortable to talk to . - Jun 18, 2025 by Anna D.Click to read more
5.5 mi · 2621 S Bristol St, Ste 202, Santa Ana, CA 92704
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Expertise in irritable bowel syndrome (ibs) + 4 more ·
Read bio
*Please verify your insurance coverage prior to scheduling an appointment. Patients with HMO plans must obtain prior authorization before being seen at our practice. Dr. Essam Quraishi is the founder and President of Gastrointestinal and Liver Consultants, Inc. Dr. Quraishi graduated from medical s...Click to read more

Dr. Javed Sadiq, MD

Gastroenterologist
4.88
·195 reviews
Great experience. Excellent Doctor who showed genuine concern and interest - Jul 15, 2024 by Angela H.Click to read more
5.5 mi · 2621 S Bristol St, Ste 202, Santa Ana, CA 92704
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 3 more ·
Read bio
*Please verify your insurance coverage prior to scheduling an appointment. Patients with HMO plans must obtain prior authorization before being seen at our practice.Click to read more

Dr. Javed Sadiq, MD

Gastroenterologist (Virtual)
4.88
·195 reviews
Great experience. Excellent Doctor who showed genuine concern and interest - Jul 15, 2024 by Angela H.Click to read more
Santa Ana, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 3 more ·
Read bio
*Please verify your insurance coverage prior to scheduling an appointment. Patients with HMO plans must obtain prior authorization before being seen at our practice.Click to read more

Dr. James Lee, MD

Gastroenterologist
4.94
·16 reviews
7.5 mi · 1010 W. La Veta Ave., Ste 570, Orange, CA 92868
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Expertise in chronic inflammatory bowel disease (ibd) + 7 more ·
Read bio
**ALL EXISTING PATIENTS MUST CALL THE OFFICE TO BOOK THEIR FOLLOW-UP APPOINTMENTS** Dr. James J. Lee has a private practice located in Orange, California and is a clinical assistant professor at the University of California, Irvine. In the last two decades, Dr. Lee has been involved in numerous end...Click to read more

Dr. Haig Najarian, MD

Gastroenterologist
5.00
·30 reviews
7.5 mi · 1010 W. La Veta Ave., Ste 570, Orange, CA 92868
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Expertise in upper gi endoscopy + 5 more ·
Read bio
**ALL EXISTING PATIENTS MUST CALL THE OFFICE TO BOOK THEIR FOLLOW-UP APPOINTMENTS** Dr. Haig Najarian is a distinguished gastroenterologist. He practices at UNIO Specialty Care in Orange and Los Alamitos, CA. He is dedicated to delivering thorough gastrointestinal care. He works closely with patie...Click to read more

Dr. Hardeep Singh, MD

Gastroenterologist
5.00
·30 reviews
7.5 mi · 1010 W. La Veta Ave., Ste 570, Orange, CA 92868
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in chronic indigestion without clear cause + 8 more ·
Read bio
**ALL EXISTING PATIENTS MUST CALL THE OFFICE TO BOOK THEIR FOLLOW-UP APPOINTMENTS** Dr. Hardeep M. Singh grew up in Orange County and obtained his undergraduate and medical degrees from USC. While completing his internship and residency at Cedars Sinai Medical Center, Dr. Singh received the Leo Rig...Click to read more

Dr. Hardeep Singh, MD

Gastroenterologist
5.00
·30 reviews
8.5 mi · 361 Hospital Rd, Ste 227, Newport Beach, CA 92663
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in chronic indigestion without clear cause + 8 more ·
Read bio
**ALL EXISTING PATIENTS MUST CALL THE OFFICE TO BOOK THEIR FOLLOW-UP APPOINTMENTS** Dr. Hardeep M. Singh grew up in Orange County and obtained his undergraduate and medical degrees from USC. While completing his internship and residency at Cedars Sinai Medical Center, Dr. Singh received the Leo Rig...Click to read more

Fasiha Memon, PA-C

Physician Assistant (Gastroenterology)
3.5 mi · 1400 Reynolds Ave, Ste 100, Irvine, CA 92614
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Fasiha Memon, PA, is a board-certified Physician Assistant, providing quality patient care at Gastrointestinal & Liver Consultants in Santa Ana, Irvine, Anaheim, and Westminster, California. Fasiha Memon is a dedicated healthcare professional. After earning a Bachelor of Science in Biological Sci...Click to read more

Lisa Vo, PA-C

Physician Assistant (Gastroenterology)
3.5 mi · 1400 Reynolds Ave, Ste 100, Irvine, CA 92614
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Lisa Vo, PA-C, is a board-certified Physician Assistant at Gastrointestinal & Liver Consultants, serving patients in Santa Ana, Irvine, Anaheim, and Westminster, California. Born and raised in Orange County, Lisa earned her Bachelor of Science in Biology from the University of California, Irvine. S...Click to read more

Dr. Christina Steinhauser, DO

Gastroenterologist (Virtual)
4.97
·92 reviews
She’s amazing! Very knowledgeable and you can really tell she listens and cares about your concerns - Mar 27, 2026Click to read more
Huntington Beach, 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

Dr. Seyedehsan Navabi, MD

Gastroenterologist
4.93
·150 reviews
They were able to schedule a coloscopy for this year. Timing could not of been more perfect! - Dec 4, 2025 by paul L.Click to read more
11 mi · 18682 Beach Blvd., Ste. 150, Huntington Beach, CA 92648
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

Dr. Christina Steinhauser, DO

Gastroenterologist
4.97
·92 reviews
She’s amazing! Very knowledgeable and you can really tell she listens and cares about your concerns - Mar 27, 2026Click to read more
11 mi · 18682 Beach Blvd., Ste. 150, Huntington Beach, CA 92648
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

Lisa Vo, PA-C

Physician Assistant (Gastroenterology)
5.5 mi · 2621 S Bristol St, Ste 202, Santa Ana, CA 92704
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Lisa Vo, PA-C, is a board-certified Physician Assistant at Gastrointestinal & Liver Consultants, serving patients in Santa Ana, Irvine, Anaheim, and Westminster, California. Born and raised in Orange County, Lisa earned her Bachelor of Science in Biology from the University of California, Irvine. S...Click to read more

Fasiha Memon, PA-C

Physician Assistant (Gastroenterology)
5.5 mi · 2621 S Bristol St, Ste 202, Santa Ana, CA 92704
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Fasiha Memon, PA, is a board-certified Physician Assistant, providing quality patient care at Gastrointestinal & Liver Consultants in Santa Ana, Irvine, Anaheim, and Westminster, California. Fasiha Memon is a dedicated healthcare professional. After earning a Bachelor of Science in Biological Sci...Click to read more

Dr. Mike Yang, DO

Family Physician (Virtual)
4.39
·131 reviews
It was clear he was knowledgeable about medicine but need to improve his interpersonal skills. Made me feel like he didn’t care about what I was saying and just prescribed something to get off the call. - Apr 5, 2025 by Brooke S.Click to read more
Santa Ana, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Excellent wait time · Expertise in upper respiratory infection (uri) + 1 more ·
Read bio
I am passionate about transforming lives through preventive care, helping individuals achieve a healthier and more fulfilling life. My dedication to bridging healthcare disparities and expanding access to care drives me to embrace new medical advancements that reach underserved populations. As a pr...Click to read more

Daniel Nunez, PA

Physician Assistant (Virtual)
4.76
·42 reviews
Promp, friendly, kind, and understanding. Very caring and personable - Dec 2, 2025 by Skylee O.Click to read more
Santa Ana, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time · Expertise in upper respiratory infection (uri) + 5 more ·
Read bio
Daniel Nunez PA-C graduated from Charles R Drew University in 2006. Since that time he has worked as a Physician Assistant in Family Practice, Emergency Medicine and Urgent Care. With nearly 20 years of medical experience in the field, he brings a deep commitment to patient centered care. Outside of...Click to read more

Michelle Layug, APRN, RN

Family Nurse Practitioner (Virtual)
Santa Ana, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits ·
Read bio
Michelle Layug, MSN, FNP-C is a board-certified Family Nurse Practitioner with over 15 years of clinical experience specializing in diabetes management and chronic disease care. She earned her Bachelor of Science in Nursing from Mount St. Mary’s University in Los Angeles and her Master of Science in...Click to read more

Li Miao Wang, PA-C

Physician Assistant
4.94
·31 reviews
First time to use the service, everything worked just fine. Thanks to Li for his help. - Oct 6, 2025 by Denny Z.Click to read more
6 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
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

Li Miao Wang, PA-C

Physician Assistant (Virtual)
4.94
·31 reviews
First time to use the service, everything worked just fine. Thanks to Li for his help. - Oct 6, 2025 by Denny Z.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

Kristin Wong, PA

Physician Assistant (Virtual)
4.75
·16 reviews
Very friendly and professional. Took time to listen and asked me a lot of questions about my condition. by JCClick to read more
Santa Ana, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Excellent wait time ·
Read bio
Kristin Wong, PA-C is a board-certified Physician Assistant with a background in outpatient primary care. She is dedicated to providing patient-centered, evidence-based care with a strong emphasis on preventive medicine and health education. Kristin has experience managing a wide range of acute and ...Click to read more

Michelle Layug, APRN, RN

Family Nurse Practitioner
6 mi · 218 W 4th St, U, Santa Ana, CA 92701
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
Read bio
Michelle Layug, MSN, FNP-C is a board-certified Family Nurse Practitioner with over 15 years of clinical experience specializing in diabetes management and chronic disease care. She earned her Bachelor of Science in Nursing from Mount St. Mary’s University in Los Angeles and her Master of Science in...Click to read more

Kristin Wong, PA

Physician Assistant
4.75
·16 reviews
Very friendly and professional. Took time to listen and asked me a lot of questions about my condition. by JCClick to read more
6 mi · 218 W 4th St, U, Santa Ana, CA 92701
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Excellent wait time ·
Read bio
Kristin Wong, PA-C is a board-certified Physician Assistant with a background in outpatient primary care. She is dedicated to providing patient-centered, evidence-based care with a strong emphasis on preventive medicine and health education. Kristin has experience managing a wide range of acute and ...Click to read more

Sheyanne Espiritu, APRN, NP

Family Nurse Practitioner (Virtual)
4.69
·65 reviews
Super friendly staff and overall experience was great 10/10! - Mar 19, 2026 by Alejandro B.Click to read more
Santa Ana, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · 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

Dr. Essam Quraishi, MD

Gastroenterologist
4.72
·76 reviews
Yes I will go back. Dr.Q. Was very nice & comfortable to talk to . - Jun 18, 2025 by Anna D.Click to read more
14 mi · 710 N Euclid St, Ste 210, Anaheim, CA 92801
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Expertise in irritable bowel syndrome (ibs) + 4 more ·
Read bio
*Please verify your insurance coverage prior to scheduling an appointment. Patients with HMO plans must obtain prior authorization before being seen at our practice. Dr. Essam Quraishi is the founder and President of Gastrointestinal and Liver Consultants, Inc. Dr. Quraishi graduated from medical s...Click to read more

Terri Rembuskos, PA-C

Physician Assistant (Gastroenterology)
5.00
·30 reviews
7.5 mi · 1010 W. La Veta Ave., Ste 570, Orange, CA 92868
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
**ALL EXISTING PATIENTS MUST CALL THE OFFICE TO BOOK THEIR FOLLOW-UP APPOINTMENTS** Terri Rembuskos is a graduate of the University of California, Irvine. She completed her Bachelor of Science in Biology and a Bachelor of Arts in Political Science in 1998. She went on to graduate from the Universit...Click to read more

Daniel Chiu, NP

Nurse Practitioner (Gastroenterology)
5.00
·30 reviews
7.5 mi · 1010 W. La Veta Ave., Ste 570, Orange, CA 92868
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
**ALL EXISTING PATIENTS MUST CALL THE OFFICE TO BOOK THEIR FOLLOW-UP APPOINTMENTS** Daniel Chiu is a Board Certified Nurse Practitioner who graduated from Azusa Pacific University with his Master of Science in Nursing with an emphasis in adult gerontology. He was honored with an Outstanding Graduat...Click to read more

Dr. Haig Najarian, MD

Gastroenterologist
5.00
·30 reviews
17 mi · 4772 Katella Ave, #200, Los Alamitos, CA 90720
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Expertise in upper gi endoscopy + 5 more ·
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**ALL EXISTING PATIENTS MUST CALL THE OFFICE TO BOOK THEIR FOLLOW-UP APPOINTMENTS** Dr. Haig Najarian is a distinguished gastroenterologist. He practices at UNIO Specialty Care in Orange and Los Alamitos, CA. He is dedicated to delivering thorough gastrointestinal care. He works closely with patie...Click to read more

Dr. Ousama Alkhatib, MD

Gastroenterologist
4.70
·30 reviews
17 mi · 4772 Katella Ave, #200, Los Alamitos, CA 90720
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in colonoscopy ·
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**ALL EXISTING PATIENTS MUST CALL THE OFFICE TO BOOK THEIR FOLLOW-UP APPOINTMENTS** Ousama Alkhatib, MD is a board-certified physician specializing in Gastroenterology, practicing medicine in Orange, California. He completed medical school at Faculty of Medicine in Alepp, Syria, completed his inter...Click to read more

Dr. James Lee, MD

Gastroenterologist
4.94
·16 reviews
17 mi · 4772 Katella Ave, #200, Los Alamitos, CA 90720
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Expertise in chronic inflammatory bowel disease (ibd) + 7 more ·
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**ALL EXISTING PATIENTS MUST CALL THE OFFICE TO BOOK THEIR FOLLOW-UP APPOINTMENTS** Dr. James J. Lee has a private practice located in Orange, California and is a clinical assistant professor at the University of California, Irvine. In the last two decades, Dr. Lee has been involved in numerous end...Click to read more

Lisa Vo, PA-C

Physician Assistant (Gastroenterology)
14 mi · 710 N Euclid St, Ste 210, Anaheim, CA 92801
In-network · UnitedHealthcare
Accepting new patients ·
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Lisa Vo, PA-C, is a board-certified Physician Assistant at Gastrointestinal & Liver Consultants, serving patients in Santa Ana, Irvine, Anaheim, and Westminster, California. Born and raised in Orange County, Lisa earned her Bachelor of Science in Biology from the University of California, Irvine. S...Click to read more

Fasiha Memon, PA-C

Physician Assistant (Gastroenterology)
14 mi · 710 N Euclid St, Ste 210, Anaheim, CA 92801
In-network · UnitedHealthcare
Accepting new patients ·
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Fasiha Memon, PA, is a board-certified Physician Assistant, providing quality patient care at Gastrointestinal & Liver Consultants in Santa Ana, Irvine, Anaheim, and Westminster, California. Fasiha Memon is a dedicated healthcare professional. After earning a Bachelor of Science in Biological Sci...Click to read more

Fasiha Memon, PA-C

Physician Assistant (Gastroenterology)
15 mi · 5455 Garden Grove Blvd Suite 230, Westminster, CA 92683
In-network · UnitedHealthcare
Accepting new patients ·
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Fasiha Memon, PA, is a board-certified Physician Assistant, providing quality patient care at Gastrointestinal & Liver Consultants in Santa Ana, Irvine, Anaheim, and Westminster, California. Fasiha Memon is a dedicated healthcare professional. After earning a Bachelor of Science in Biological Sci...Click to read more

Lisa Vo, PA-C

Physician Assistant (Gastroenterology)
15 mi · 5455 Garden Grove Blvd Suite 230, Westminster, CA 92683
In-network · UnitedHealthcare
Accepting new patients ·
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Lisa Vo, PA-C, is a board-certified Physician Assistant at Gastrointestinal & Liver Consultants, serving patients in Santa Ana, Irvine, Anaheim, and Westminster, California. Born and raised in Orange County, Lisa earned her Bachelor of Science in Biology from the University of California, Irvine. S...Click to read more

Terri Rembuskos, PA-C

Physician Assistant (Gastroenterology)
5.00
·30 reviews
17 mi · 4772 Katella Ave, #200, Los Alamitos, CA 90720
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
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**ALL EXISTING PATIENTS MUST CALL THE OFFICE TO BOOK THEIR FOLLOW-UP APPOINTMENTS** Terri Rembuskos is a graduate of the University of California, Irvine. She completed her Bachelor of Science in Biology and a Bachelor of Arts in Political Science in 1998. She went on to graduate from the Universit...Click to read more

Dr. Mariam Moosa Ali, DO

Family Physician
4.83
·36 reviews
The specialties listed are not accurate. It was a waste of time, and she told me to find someone more local. - Dec 9, 2025Click to read more
17.5 mi · 955 W Imperial Hwy, Ste 110, Brea, CA 92821
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
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Dr. Ali is board certified in Family Medicine and completed her residency training at Emanate Health in West Covina, California. She values establishing long-lasting relationships with her patients and creating a positive environment to help patients improve and manage their health. Dr. Ali treats a...Click to read more

Dr. Sadia Moinuddin, MD, DABOM

Bariatric Physician (Virtual)
4.72
·82 reviews
Professional doctor, very knowledgable. Lovely staff! by SAClick to read more
Norwalk, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
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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

Dr. Hemalatha Murugan, MD

Family Physician (Virtual)
Chino, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Expertise in sepsis + 1 more
Calendar Check
1-3 days

Average time it takes to be seen by a provider

Doctor
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Verified providers with a 4.8 average rating

Primary Care Physician
15+ years

In the business of finding quality care for patients

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Frequently asked questions

How can I make a same-day appointment with a Gastroenterologist in Irvine who takes UnitedHealthcare insurance?

On average, patients who use Zocdoc can search for a Gastroenterologist in Irvine who takes UnitedHealthcare insurance, book an appointment, and see the Gastroenterologist within 24 hours. Same-day appointments are often available, you can search for real-time availability of Gastroenterologists in Irvine who accept UnitedHealthcare insurance and make an appointment online.

How can I find a Gastroenterologist in Irvine who takes UnitedHealthcare?

Zocdoc lets you search specifically for a Gastroenterologist in Irvine 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 Gastroenterologist in Irvine?

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

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

How can I find a UnitedHealthcare Gastroenterologist in Irvine who sees patients after hours?

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

How can I find a top-rated UnitedHealthcare Gastroenterologist in Irvine?

You can use Zocdoc to find UnitedHealthcare Gastroenterologists in Irvine 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 Gastroenterologist online in Irvine?

Gastroenterologists in Irvine 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 Gastroenterologists who offer video visits.

Are video visits with a Gastroenterologist 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 Gastroenterologists in Irvine 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 Gastroenterologist in Irvine who sees patients in the morning or evening?

Zocdoc lets you search specifically for a Gastroenterologist 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 Gastroenterologist in Irvine who sees patients during the weekend?

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

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