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315 verified UnitedHealthcare Gastroenterologists in Santa Monica, 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 04/05/2026
Availability last updated 04/05/2026

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: Thu, Apr 9

Theresa Obonyano, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
5.00
·30 reviews
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended ·
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: Thu, Apr 9

Rebecca Humphries, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
4.94
·34 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: Mon, Apr 13

Robbie Leinart, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
5.00
·30 reviews
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · 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: Mon, Apr 13

Jan Seiler, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
4.97
·31 reviews
- Mar 22, 2026 by Brielle M.Click to read more
Markleeville, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time · 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, Apr 13

Louise Babikow, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
5.00
·32 reviews
- Feb 10, 2026Click 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: Wed, Apr 22

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: Thu, Apr 23

Dr. Ramachandran Srinivasan, MD, FACR

Rheumatologist
3.94
·54 reviews
The staff and Dr. Luisana were very nice, intelligent and provide fast and efficient service. - May 23, 2017 by Mario C.Click to read more
12.5 mi · 1300 N Vermont Ave, Suite 606, Los Angeles, CA 90027
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Expertise in fibromyalgia and chronic pain and fatigue + 7 more ·
Read bio
Dr. Ramachandran Srinivasan, MD, FACR, completed his Medical Diploma/M.B.B.S. (Bachelor of Medicine, Bachelor of Surgery) at Andhra Medical College, India. He completed his internship at Lakewood Hospital, Ohio. He then finished his Internal Medicine Residency at Veterans Affairs Los Angeles Healthc...Click to read more

Cindy Haslam, NP

Family Nurse Practitioner
5.00
·2 reviews
My visit was pleasant. The staff was wonderful and Cindy is kind and professional. by SCClick to read more
15.5 mi · 3056 Fletcher Dr, Los Angeles, CA 90065
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Ms. Cindy Haslam is a proficient family nurse practitioner at Fletcher Family Medical Center in Los Angeles, CA. She obtained her master’s degree in nursing from the University of Southern California to gain expertise in primary care for individuals and families. She conducts health assessments, pre...Click to read more

Dr. Ramachandran Srinivasan, MD, FACR

Rheumatologist
3.94
·54 reviews
The staff and Dr. Luisana were very nice, intelligent and provide fast and efficient service. - May 23, 2017 by Mario C.Click to read more
16.5 mi · 7301 State St, Huntington Park, CA 90255
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Expertise in fibromyalgia and chronic pain and fatigue + 7 more ·
Read bio
Dr. Ramachandran Srinivasan, MD, FACR, completed his Medical Diploma/M.B.B.S. (Bachelor of Medicine, Bachelor of Surgery) at Andhra Medical College, India. He completed his internship at Lakewood Hospital, Ohio. He then finished his Internal Medicine Residency at Veterans Affairs Los Angeles Healthc...Click to read more

Dr. Ramachandran Srinivasan, MD, FACR

Rheumatologist
3.94
·54 reviews
The staff and Dr. Luisana were very nice, intelligent and provide fast and efficient service. - May 23, 2017 by Mario C.Click to read more
16.5 mi · 2928 East Cesar E Chavez Avenue, Los Angeles, CA 90033
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Expertise in fibromyalgia and chronic pain and fatigue + 7 more ·
Read bio
Dr. Ramachandran Srinivasan, MD, FACR, completed his Medical Diploma/M.B.B.S. (Bachelor of Medicine, Bachelor of Surgery) at Andhra Medical College, India. He completed his internship at Lakewood Hospital, Ohio. He then finished his Internal Medicine Residency at Veterans Affairs Los Angeles Healthc...Click to read more

Dr. Ramachandran Srinivasan, MD, FACR

Rheumatologist
3.94
·54 reviews
The staff and Dr. Luisana were very nice, intelligent and provide fast and efficient service. - May 23, 2017 by Mario C.Click to read more
19.5 mi · 5831 Firestone Blvd, Ste E, South Gate, CA 90280
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Expertise in fibromyalgia and chronic pain and fatigue + 7 more ·
Read bio
Dr. Ramachandran Srinivasan, MD, FACR, completed his Medical Diploma/M.B.B.S. (Bachelor of Medicine, Bachelor of Surgery) at Andhra Medical College, India. He completed his internship at Lakewood Hospital, Ohio. He then finished his Internal Medicine Residency at Veterans Affairs Los Angeles Healthc...Click to read more

Dr. Ramachandran Srinivasan, MD, FACR

Rheumatologist
3.94
·54 reviews
The staff and Dr. Luisana were very nice, intelligent and provide fast and efficient service. - May 23, 2017 by Mario C.Click to read more
20.5 mi · 941 S Atlantic Blvd, #101-102, Monterey Park, CA 91754
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Expertise in fibromyalgia and chronic pain and fatigue + 7 more ·
Read bio
Dr. Ramachandran Srinivasan, MD, FACR, completed his Medical Diploma/M.B.B.S. (Bachelor of Medicine, Bachelor of Surgery) at Andhra Medical College, India. He completed his internship at Lakewood Hospital, Ohio. He then finished his Internal Medicine Residency at Veterans Affairs Los Angeles Healthc...Click to read more

Dr. Ramachandran Srinivasan, MD, FACR

Rheumatologist
3.94
·54 reviews
The staff and Dr. Luisana were very nice, intelligent and provide fast and efficient service. - May 23, 2017 by Mario C.Click to read more
25 mi · 2595 E Washington Blvd, Ste 106, Pasadena, CA 91107
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Expertise in fibromyalgia and chronic pain and fatigue + 7 more ·
Read bio
Dr. Ramachandran Srinivasan, MD, FACR, completed his Medical Diploma/M.B.B.S. (Bachelor of Medicine, Bachelor of Surgery) at Andhra Medical College, India. He completed his internship at Lakewood Hospital, Ohio. He then finished his Internal Medicine Residency at Veterans Affairs Los Angeles Healthc...Click to read more

Dr. Sadia Moinuddin, MD, DABOM

Bariatric Physician (Virtual)
4.71
·79 reviews
Incredibly helpful made sure to ask all questions extremely personable and nice which I always like in a doctor! by JCClick to read more
Norwalk, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · 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

Dr. Javed Sadiq, MD

Gastroenterologist
4.87
·191 reviews
Amazing Dr. I am super happy with his care and will return to see him for future services. Highly recommend! - Dec 15, 2025 by Shaleah R.Click to read more
34 mi · 710 N Euclid St, Ste 210, Anaheim, CA 92801
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
·75 reviews
Friendliness and professionalism of staff, bed-side of Dr. Q was excellent, communication was clear. - Jan 10, 2024 by Doug P.Click to read more
34 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

Dr. Christina Steinhauser, DO

Gastroenterologist (Virtual)
4.97
·88 reviews
Dr. was very detailed on reviewing my case. Useful information and tips. - Jul 3, 2025 by Xuan Dao D.Click 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

Lisa Vo, PA-C

Physician Assistant (Gastroenterology)
31 mi · 5455 Garden Grove Blvd Suite 230, Westminster, CA 92683
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)
31 mi · 5455 Garden Grove Blvd Suite 230, Westminster, CA 92683
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

Fasiha Memon, PA-C

Physician Assistant (Gastroenterology)
34 mi · 710 N Euclid St, Ste 210, Anaheim, CA 92801
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)
34 mi · 710 N Euclid St, Ste 210, Anaheim, CA 92801
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. Essam Quraishi, MD

Gastroenterologist (Virtual)
4.72
·75 reviews
Friendliness and professionalism of staff, bed-side of Dr. Q was excellent, communication was clear. - Jan 10, 2024 by Doug P.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. Javed Sadiq, MD

Gastroenterologist (Virtual)
4.87
·191 reviews
Amazing Dr. I am super happy with his care and will return to see him for future services. Highly recommend! - Dec 15, 2025 by Shaleah R.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. Essam Quraishi, MD

Gastroenterologist
4.72
·75 reviews
Friendliness and professionalism of staff, bed-side of Dr. Q was excellent, communication was clear. - Jan 10, 2024 by Doug P.Click to read more
41 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. Viet Mai, MD

Primary Care Doctor
34 mi · 500 W Badillo St, Covina, CA 91722
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience ·

Dr. Essam Quraishi, MD

Gastroenterologist
4.72
·75 reviews
Friendliness and professionalism of staff, bed-side of Dr. Q was excellent, communication was clear. - Jan 10, 2024 by Doug P.Click to read more
43 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. Javed Sadiq, MD

Gastroenterologist
4.87
·191 reviews
Amazing Dr. I am super happy with his care and will return to see him for future services. Highly recommend! - Dec 15, 2025 by Shaleah R.Click to read more
43 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

Daniel Nunez, PA

Physician Assistant (Virtual)
4.76
·42 reviews
PA Nunez was great! From the very beginning he was very friendly and knowledgeable. I would highly recommend him! by CDClick 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

Dr. Mike Yang, DO

Family Physician (Virtual)
4.39
·131 reviews
Was asked my preferred pronouns and these were ignored by the provider. Kind of bummed about that, but otherwise received care as expected - Feb 15, 2024 by Hannah Lin K.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

Yao Wang, PA

Physician Assistant (Virtual)
Santa Ana, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits ·
Read bio
Hi, I’m Yao Wang, PA-C. I earned my Master of Physician Assistant Studies from Butler University after completing a PhD in Microbiology. My background includes working in correctional and military medicine, where I gained valuable experience caring for patients in diverse and challenging settings. ...Click to read more

Sheyanne Espiritu, APRN, NP

Family Nurse Practitioner (Virtual)
4.71
·56 reviews
She was patient and caring during my appointment. She was also super informative. by XBClick 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

Sheyanne Espiritu, APRN, NP

Family Nurse Practitioner
4.71
·56 reviews
She was patient and caring during my appointment. She was also super informative. by XBClick to read more
40.5 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

Lisa Vo, PA-C

Physician Assistant (Gastroenterology)
41 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)
41 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

Lisa Vo, PA-C

Physician Assistant (Gastroenterology)
43 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

Fasiha Memon, PA-C

Physician Assistant (Gastroenterology)
43 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

Dr. Duminda Suraweera, MD

Gastroenterologist
1.00
·1 review
49.5 mi · 43944 15th St W, Ste 201, Lancaster, CA 93534
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Expertise in colonoscopy + 4 more ·
Read bio
Dr. Suraweera earned his Doctor of Medicine from Creighton University. He completed his Internal Medicine Residency at Olive View-UCLA Medical Center and his Gastroenterology Fellowship at the University of California, Irvine Medical Center. His interests include Hepatology and Inflammatory Bowel Di...Click to read more

Dr. Kumaravel Perumalsamy, MD

Gastroenterologist
2.60
·5 reviews
good experience. I came early so I did not have to wait too long. Very pleased to finally be able to take steps towards curing my health problem. The staff was great and friendly for it to be so early! - Mar 27, 2022 by Jade C.Click to read more
49.5 mi · 43944 15th St W, Ste 201, Lancaster, CA 93534
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Expertise in acid reflux + 10 more ·
Read bio
Dr. Perumalsamy was born and raised in India. After completing his Bachelor of Medicine and Bachelor of Surgery at Thanjavur Medical College, Tamil Nadu, India, he moved to the U.S., where he did his residency in Internal Medicine at Coney Island Hospital, Brooklyn, NY. He proceeded to do his fellow...Click to read more

Dr. Vivaik Tyagi, MD

Gastroenterologist
2.00
·1 review
49.5 mi · 43944 15th St W, Ste 201, Lancaster, CA 93534
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Expertise in acid reflux + 7 more ·
Read bio
Dr. Tyagi received his medical education at King George's Medical University in Lucknow, India, where he earned his Bachelor of Medicine, Bachelor of Surgery degree. He completed a Fellowship in Gastroenterology at the State University of New York, Downstate Medical Center. Dr. Tyagi is a member of ...Click to read more

Dr. Duminda Suraweera, MD

Gastroenterologist (Virtual)
1.00
·1 review
Lancaster, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Expertise in colonoscopy + 4 more ·
Read bio
Dr. Suraweera earned his Doctor of Medicine from Creighton University. He completed his Internal Medicine Residency at Olive View-UCLA Medical Center and his Gastroenterology Fellowship at the University of California, Irvine Medical Center. His interests include Hepatology and Inflammatory Bowel Di...Click to read more

Dr. Vivaik Tyagi, MD

Gastroenterologist (Virtual)
2.00
·1 review
Lancaster, CA
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Offers video visits · Expertise in acid reflux + 7 more ·
Read bio
Dr. Tyagi received his medical education at King George's Medical University in Lucknow, India, where he earned his Bachelor of Medicine, Bachelor of Surgery degree. He completed a Fellowship in Gastroenterology at the State University of New York, Downstate Medical Center. Dr. Tyagi is a member of ...Click to read more

Dr. Kumaravel Perumalsamy, MD

Gastroenterologist (Virtual)
2.60
·5 reviews
good experience. I came early so I did not have to wait too long. Very pleased to finally be able to take steps towards curing my health problem. The staff was great and friendly for it to be so early! - Mar 27, 2022 by Jade C.Click to read more
Lancaster, CA
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Offers video visits · Expertise in acid reflux + 10 more ·
Read bio
Dr. Perumalsamy was born and raised in India. After completing his Bachelor of Medicine and Bachelor of Surgery at Thanjavur Medical College, Tamil Nadu, India, he moved to the U.S., where he did his residency in Internal Medicine at Coney Island Hospital, Brooklyn, NY. He proceeded to do his fellow...Click to read more

Dr. Farhad Nassiri Afshar, MD

Internist (Virtual)
5.00
·21 reviews
I am a new patient. The receptionist was amazing. He knew who I was before I could even take out my insurance card. Dr Afshar saw me within minutes of my arrival and was very thorough with background inquiries and my overall health condition before we talked about my current issue. I think he car...Click to read more
Irvine, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
PPO-only clinic (Anthem Blue Cross, Aetna, Cigna, UnitedHealthcare) and Original Medicare—not in network with Blue Shield of California or HMO plans—in Irvine, led by a board-certified internal medicine physician providing adult primary care in Orange County. We have a 24h cancellation policy with a...Click to read more

Dr. Sushma Sadula, MD

Family Physician (Virtual)
4.49
·70 reviews
Dr. Sadula was lovely, and I’m so excited to start my care with her! She’s knowledgeable, thorough, and ordered an extensive panel of labs that made me feel confident we’re taking a comprehensive approach to my health. The only downside was that I booked the appointment through Zocdoc for an annual ...Click to read more
Chino, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits ·
Read bio
I’m Dr. Sushma Sadula, a board-certified family medicine physician with a special focus on women’s health. My medical journey began in medical school in India and continued through a family medicine residency in Chino, California. Over the past five years, I’ve dedicated myself to helping women achi...Click to read more

Dr. Sushma Sadula, MD

Family Physician
4.49
·70 reviews
Dr. Sadula was lovely, and I’m so excited to start my care with her! She’s knowledgeable, thorough, and ordered an extensive panel of labs that made me feel confident we’re taking a comprehensive approach to my health. The only downside was that I booked the appointment through Zocdoc for an annual ...Click to read more
46 mi · 5475 Walnut Ave, Chino, CA 91710
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
Read bio
I’m Dr. Sushma Sadula, a board-certified family medicine physician with a special focus on women’s health. My medical journey began in medical school in India and continued through a family medicine residency in Chino, California. Over the past five years, I’ve dedicated myself to helping women achi...Click to read more

Dr. Hemalatha Murugan, MD

Family Physician
46 mi · 5475 Walnut Ave, Chino, CA 91710
In-network · UnitedHealthcare
Also offers video visitsAccepting new patientsExpertise in sepsis + 1 more

Dr. Hemalatha Murugan, MD

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

Dr. Christina Steinhauser, DO

Gastroenterologist
4.97
·88 reviews
Dr. was very detailed on reviewing my case. Useful information and tips. - Jul 3, 2025 by Xuan Dao D.Click to read more
57.5 mi · 4244 Riverwalk Pkwy, Ste 290, Riverside, CA 92505
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
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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. Christina Steinhauser, DO

Gastroenterologist
4.97
·88 reviews
Dr. was very detailed on reviewing my case. Useful information and tips. - Jul 3, 2025 by Xuan Dao D.Click to read more
63 mi · 6958 Brockton Ave, Ste 203, Riverside, CA 92506
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

Dr. Hemalatha Murugan, MD

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

Dr. Maria Garcia De Benitez, MD

Family Physician
4.27
·11 reviews
Parking is behind the complex, so plan on parking and walking a little bit around. The 1st appointment requires a ton of paperwork to be completed - 2 packets worth! It took me 35 minutes just to get through it all. Therefore, you must plan to be there like at least 45 minutes early. The staff is ni...Click to read more
63.5 mi · 4013 Brockton Ave, Riverside, CA 92501
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Expertise in chronic high blood pressure + 3 more ·
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Dr. Maria S. Garcia is a highly experienced and board-certified family physician with 25 years of medical practice. Originally from Mexico City, she earned her medical degree there before completing her Family Medicine residency in Texas. Throughout her career, Dr. Garcia has been deeply committed t...Click to read more

Dr. Hemalatha Murugan, MD

Family Physician
63.5 mi · 4013 Brockton Ave, Riverside, CA 92501
In-network · UnitedHealthcare
Also offers video visitsAccepting new patientsExpertise in sepsis + 1 more

Jeff Swanson, MSN

Family Nurse Practitioner (Virtual)
Loma Linda, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits ·
Read bio
Jeff Swanson is a compassionate Family Nurse Practitioner dedicated to providing high-quality, patient-centered care. He offers a broad range of services, from preventive care to managing chronic conditions, always focused on improving patients’ health and well-being. Jeff earned his Master’s in Nur...Click to read more

Jeff Swanson, MSN

Family Nurse Practitioner
71.5 mi · 11306 Mountain View Ave, Suite C, Loma Linda, CA 92354
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
Read bio
Jeff Swanson is a compassionate Family Nurse Practitioner dedicated to providing high-quality, patient-centered care. He offers a broad range of services, from preventive care to managing chronic conditions, always focused on improving patients’ health and well-being. Jeff earned his Master’s in Nur...Click to read more
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

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Frequently asked questions

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

On average, patients who use Zocdoc can search for a Gastroenterologist in Santa Monica 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 Santa Monica who accept UnitedHealthcare insurance and make an appointment online.

How can I find a Gastroenterologist in Santa Monica who takes UnitedHealthcare?

Zocdoc lets you search specifically for a Gastroenterologist in Santa Monica 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 Santa Monica?

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

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

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

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

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

You can use Zocdoc to find UnitedHealthcare Gastroenterologists in Santa Monica 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 Santa Monica?

Gastroenterologists in Santa Monica 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 Santa Monica 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 Santa Monica 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 Santa Monica who sees patients during the weekend?

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

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