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Endoscopy Center of the South BayEndoscopy Center of the South Bay

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Named One of the Nation’s Best ASCs by U.S. News & World Report!

Reflecting our commitment to continuous improvement, patient care and clinical quality.

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Take Action at 45 to Beat the Trend!

More Young Adults Are Getting Colon Cancer.

Schedule Your Colonoscopy Today

El cáncer de colon se puede prevenir.

Realícese una prueba por su familia. Realícese una prueba por usted.

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How We're Keeping You Safe

Learn what steps we've added to keep you safe

Prevent Colon Cancer

Learn more about colonoscopies

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About Us

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Why Choose Us?

At Endoscopy Center of the South Bay, we are dedicated to providing quality, affordable care to the community in our quest to lower colon cancer rates. We treat an array of digestive diseases, including Crohn’s Disease, irritable bowel syndrome (IBS) and gastroesophageal reflux disease (GERD).

We believe in compassionate medicine, where patients feel reassured and unrushed. We hold ourselves to the highest standards, as our center is accredited by the Accreditation Association for Ambulatory Health Care (AAAHC).

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For Your Visit

Endoscopy Center of the South Bay is committed to ensuring your experience with us is relaxed and worry-free, from consultation through recovery. To assist us, we ask that you read and comply with all guidelines.

Patient Forms
Patient Forms

At Endoscopy Center of the South Bay, your time is as valuable to us as it is to you. That’s why we provide online access to a variety of forms that you may complete before your visit. The following documents will help us expedite the check-in process for your appointment. Please take a moment to download and print the appropriate form(s).

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Insurance and Billing
Insurance and Billing

Endoscopy Center of the South Bay accepts most major insurance. We will bill your insurance carrier; however, we cannot tell you what your policy will cover. Since your insurance policy and coverage are between you and your carrier, we urge you to contact them prior to your procedure. You will be responsible for any co-pays and deductibles.

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Meet Our Gastroenterologists

View All Physicians
Daniel Cho Daniel Cho M.D. Jerome Cohen Jerome Cohen M.D. Tonny Lee Tonny Lee M.D. Melissa Munsell Melissa Munsell M.D. Minh Nguyen Minh Nguyen M.D. Gloria Sze Gloria Sze M.D. Oren Zaidel Oren Zaidel M.D.
3.4/5
3.4 /5
37 Reviews

Google
5.0/5
Nov 19, 2025
Google • Endoscopy Center of the South Bay

Google
5.0/5
Nov 18, 2025
Google • Endoscopy Center of the South Bay

First let me say, I don't think anyone is excited to have a CHOLANOSCOPY. That being said, I am so glad my insurance chose this Endo center. From the moment I walked into the center I was greeted by a very kind young woman at the front desk. The waiting room only had two other patients waiting, and we were all taken care of in a timely manner. Rosie assisted me once I was inside the surgery area and she was so kind in helping me relax and I felt very comfortable and in great hands. Also, Ericka was very gentle when setting up my IV and was right there for everything I needed or to answer my questions. This was my first time meeting Dr. Zaidel and he was so kind and reassured me by telling me exactly what to expect step by step. He really cares about his patient's comfort and took the time to answer any concerns I had. I was pleasantly surprised to see a follow up text the next day from this center asking how I was feeling and asked if I'd like a nurse to call me. WOW customer service is 10⭐️ ---Beth S

Google
5.0/5
Oct 25, 2025
Google • Endoscopy Center of the South Bay

This surgical center facility is top notch. They run a tight ship. The surgical team is one of the best. The entire facility hires highly trained people. They have good bedside manners and extremely knowledgeable. My experience exceeded my expectation. I highly recommend this facility.

Google
5.0/5
Sep 19, 2025
Google • Endoscopy Center of the South Bay

I hope this review brings comfort to anyone feeling anxious about their upcoming procedure. If you're searching for reassurance, know that you're not alone—and that you're in good hands. Walking into the building early this morning, I was overwhelmed with nerves and fear of the unknown. But from the moment I arrived, the care and compassion I received made all the difference. To Heather, RN; Michael, Nurse Anesthesiologist; and Dr. Sze—thank you. Your kindness, professionalism, and calming presence helped me feel safe and supported throughout the entire experience. I’m deeply grateful to each of you. And to all the other staff members who assisted me— please know how grateful I am for your attentiveness.

Google
5.0/5
Aug 8, 2025
Google • Endoscopy Center of the South Bay

Everyone at SBG were great. The colonoscopy was a breeze thanks to the nurses and the amazing Dr. Cohen. If you are hesitant in getting a colonoscopy, no worries. after i awoke from the anesthesia, i sat wondering when they were going to begin until i was told it was already done. no residual effects from the anesthesia, left feeling better than ever. the only tough part is the home preparation laxative stuff, but it's worth it. they even messaged me the next day to make sure i am ok. can't believe i waited so long over unfounded worries. don't worry about the 3 star rating, you can't get a better procedure than here


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We’ve Been Named One of U.S. News & World Report’s Best!

We’ve Been Named One of U.S. News & World Report’s Best!

Our center has been named one of the Best Ambulatory Surgery Centers in the nation by U.S. News & World Report.

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You're Not Too Young: Why Colon Cancer Screening Matters

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Endoscopy Center of the South Bay
23560 Madison Street, Suite 109, Torrance,
CA, 90505

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