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266 verified Gastroenterologists in San Mateo, CA
Zocdoc verifies all providers before they can appear in Zocdoc search results. Every provider that appears in search is open to new patients.
All providers
Availability last updated 06/01/2026
Availability last updated 06/01/2026

Dr. Yan Zhao, MD

Gastroenterologist (Virtual)
3.75
·8 reviews
Highly recommend! - Feb 8, 2024 by Melissa Q.Click to read more
Rancho Cucamonga, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 14 more
Accepting new patients · Offers video visits ·
Read bio
Dr. Yan Zhao is a proficient gastroenterologist serving the communities of San Bernardino and Rancho Cucamonga, California. After completing a medical degree from the prestigious Peking University Health Science Center, she furthered her academic journey with a residency in internal medicine at the ...Click to read more

Dr. Mariam Moosa Ali, DO

Family Physician (Virtual)
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
Brea, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 8 more
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
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. Christina Steinhauser, DO

Gastroenterologist (Virtual)
4.97
·92 reviews
Dr. was very detailed on reviewing my case. Useful information and tips. - Jul 3, 2025 by Xuan Dao D.Click to read more
Eastvale, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 15 more
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. Erik Kerekes, MD

Gastroenterologist (Virtual)
5.00
·11 reviews
Excellent provider with attentive and compassionate behavior. Great follow-up with patients and provides an excellent background and description of diagnoses. by SWClick to read more
Newport Beach, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 25 more
Accepting new patients · 24 years of experience · Offers video visits · Highly recommended · Excellent wait time · Expertise in colonoscopy + 6 more ·
Read bio
Dr. Kerekes is local to Newport Beach and is excited to serve the community he knows and loves. In 2022 he moved his practice of 17 years from Long Beach to Newport Beach to be closer to his family. He is fluent in Spanish and is privileged at Hoag Hospital Newport & Irvine. Dr. Kerekes is dedicate...Click to read more

Dr. Luther Mangoba, MD

Family Physician (Virtual)
4.57
·42 reviews
quick appointment and they helped me with exactly what i needed - Jun 5, 2024Click to read more
Newport Beach, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 12 more
Accepting new patients · Offers video visits ·
Read bio
Dr. Mangoba earned his bachelor's degree in Biology at the University of California, Riverside, in 1996. He graduated with a Doctor of Medicine from Loma Linda University School of Medicine in 2000. He completed his Family Medicine residency training at Riverside University Health System (formerly R...Click to read more

Dr. Christina Steinhauser, DO

Gastroenterologist (Virtual)
4.97
·92 reviews
Dr. was very detailed on reviewing my case. Useful information and tips. - Jul 3, 2025 by Xuan Dao D.Click to read more
Temecula, CA
Accepts Aetna, BlueCross BlueShield, Cigna + 15 more
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
Other providers
Availability last updated 06/01/2026
Availability last updated 06/01/2026

Keith Leibowitz, MD

Gastroenterologist
7958 mi · 700 17th St, 102, Modesto, CA 95354
Accepts Cigna + 3 more
Accepting new patients · 25+ years of experience · Offers video visits · Expertise in acid reflux + 2 more ·
Read bio
Keith Leibowitz, MD is a Gastroenterologist in Modesto, CA and Turlock, CA. They attended medical school at New York Medical College in 1985. They completed their residency at University Miami/Jackson Mem Mc. Keith Leibowitz was board certified by American Board of Internal Medicine Certification in...Click to read more
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Frequently asked questions

How can I make a same-day appointment with a Gastroenterologist in San Mateo?

On average, patients who use Zocdoc can search for a Gastroenterologist in San Mateo, 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 San Mateo who accept your insurance and make an appointment online.

How can I find a San Mateo Gastroenterologist who takes my insurance?

Zocdoc lets you search specifically for a San Mateo Gastroenterologist who takes your insurance. 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 Gastroenterologist in San Mateo?

Zocdoc is a free online service that helps patients find Gastroenterologists in San Mateo and book appointments instantly. You can search for San Mateo Gastroenterologists by symptom or visit reason. Then, choose your insurance plan. 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 San Mateo?

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

How can I find a San Mateo Gastroenterologist who sees patients after hours?

On Zocdoc, you can search specifically for San Mateo Gastroenterologists with availability after 5 p.m.

How can I find a top-rated Gastroenterologist in San Mateo?

You can use Zocdoc to find Gastroenterologists in San Mateo 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 San Mateo?

Gastroenterologists in San Mateo 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 my insurance?

Most insurers provide coverage for video visits at the same cost as in-person visits. You can search on Zocdoc specifically for Gastroenterologists in San Mateo who accept your insurance 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 Gastroenterologist in San Mateo 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 Gastroenterologist in San Mateo who sees patients during the weekend?

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

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