Testimonials
BOOK APPOINTMENTPatient Experiences and Testimonials
Richard Hall
Doctor Davidson saved me from a colostomy. Yes, he also saved my life, for which I am most grateful, but that’s an ordinary part of his job.
By all rights I should be wearing a colostomy bag right now. Doctor Davidson found a clever work-around to save me from that annoyance and get me on the road to recovery much quicker that would otherwise have been the case. He also managed my care in the hospital, finding me a surgeon and an oncologist, both amazingly good at what they do.
If you are so fortunate as to have Mark Davidson for your GI, give thanks; if not, consider switching.
Lance V. McCollough, President & CEO, Prosites, Inc.
We at Prosites sincerely appreciate the opportunity to design and host your new website. Your dedication to educating and serving your patients is evident by the excellent information and background your website provides to visitors. We salute your efforts in providing that extra level of communication and service that is so important to patients.
Matt S.
Here is proof that going to the doctor doesn’t have to be a bad experience. You can tell he genuinely cares for his patients. From personal experience I can say he not only takes the time to thoroughly help his patients with their issues but also to get to know them as people. His staff is also very pleasant and consistent.
Rojany
My illness came suddenly, and I was scared and confused when I arrived at the emergency room. Dr. Davidson was on call and recognized me when he walked by–as luck would have it, I had met him a few months beforehand for an unrelated pre-op evaluation. It was a relief to find a friendly face in the tumult of the ER. Thanks to him, I was quickly admitted to the hospital, where he treated me for the next 3 weeks. In addition to being a terrific doctor, he is kind and professional–I recommend Dr. Davidson without reservation.
Our Blogs
When Should You Get a Colonoscopy?
Colon cancer is one of the most preventable cancers — but only if it’s detected early. Many people wait for symptoms.The problem? Early-stage colon cancer often has none. Here’s when you should consider a colonoscopy: • Age 45 and older, even with no symptoms• Family...
When Your Gut Speaks, It’s Time to Listen
Your digestive system does more than process food. It plays a role in your energy, comfort, and overall quality of life. If you’re dealing with symptoms like bloating, heartburn, constipation, or ongoing discomfort, it may be time to listen to what your gut is...
If Something Does Not Feel Right, It May Be Time to Get Answers
Ongoing bloating, constipation, rectal discomfort, or reflux should not be ignored. These symptoms may point to conditions that benefit from proper evaluation and care. We treat concerns such as constipation, hemorrhoids, fecal incontinence, and pelvic floor...
Call to Schedule
Our office is available to answer your questions and evaluate your symptoms.

Phone
(310) 855-0222
Fax: (949) 404-6467
Hours
Mon - Fri: 9am – 5pm
Sat - Sun: Closed