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Endoscopy Center of MarinEndoscopy Center of Marin

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Your Safety is Our Top Priority

Learn what measures we have taken to keep you safe.

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Are You 45 or Older?

Colorectal cancer numbers are rising for people younger than 50. Early detection is key to detect or even prevent the disease.

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Patient Experience Exceeds Expectations

Our patient experience scores exceed national averages

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No Out-of-Pocket Expense for Your Colonoscopy

By May 31, 2022, most health insurance plans will fully cover this procedure to evaluate a positive stool-based test for colon cancer. Check with your insurance about your coverage.

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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

Make A Payment

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About Us

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Why Choose Us?

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

Our board-certified GI doctors specialize in performing a myriad of GI procedures, including colonoscopy, flexible sigmoidoscopy and upper endoscopy.

If you are due for a colonoscopy or in need of a GI procedure, don’t put it off any longer. Give us a call today!

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For Your Visit

Endoscopy Center of Marin is committed to ensuring that 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.

We’re pleased to partner with StopColonCancerNow to help boost colon cancer screenings and prevention.

Patient Forms

At Endoscopy Center of Marin, 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

Endoscopy Center of Marin accepts most major insurances. We will bill your insurance carrier for you; however, we cannot tell you what your policy will cover. Since your insurance policy and coverage is 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 Physicians

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Mark Bazalgette Mark Bazalgette M.D. John Bettinger John Bettinger M.D. Wendy Davis Wendy Davis M.D. Christopher Hogan Christopher Hogan M.D. Natalie Lee Natalie Lee M.D. Vikram Malladi Vikram Malladi M.D. Ripple Sharma Ripple Sharma FACG, M.D. Tim Sowerby Tim Sowerby M.D.
4.9/5
4.9 /5
19 Reviews

Google
5.0/5
Aug 1, 2022
Google • Endoscopy Center of Marin

The experience was so good it was almost unbelievable. The anesthesiologist said that the experience was a lot like "time travel". Yeah. That was pretty much how it was. I closed my eyes. I opened them and I was done. The doctors, nurses and staff made the experience calming and reassuring.

Google
5.0/5
Jul 24, 2022
Google • Endoscopy Center of Marin

I loved the nurses and the anesthesiologist and Dr Bettinger. All was very comfortable and professional!

Google
5.0/5
Jul 24, 2022
Google • Endoscopy Center of Marin

Excellent doctor, staff and care. Bravo

Google
5.0/5
Jul 23, 2022
Google • Endoscopy Center of Marin

Excellent care and attention during and after procedure., totally professional and Covid safe precautions.

Google
5.0/5
Jul 12, 2022
Google • Endoscopy Center of Marin

Overall a pleasant experience for a not-so—pleasant procedure. Dr. Hogan and staff are very kind and gentle people.


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Endoscopy Center of Marin
1100 South Eliseo Drive, Suite 3,
Greenbrae, CA 94904

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