Gastroenterology care for patients across Los Angeles County

Los Angeles County is huge, and finding a gastroenterologist who listens, explains things clearly and speaks your language can take time. Dr. Michael Pimienta is a GI doctor who cares for adults with digestive and liver conditions. He trained in internal medicine at LAC+USC and completed his GI fellowship training at Stanford University, and he is triple board-certified in gastroenterology, obesity medicine and internal medicine. He sees patients at one office in Los Angeles, on Wilshire Boulevard, and by secure video.

Patients from across the county

The office is in Mid-City West, between Downtown and the Westside. That central spot means patients may come from across the county. Some may live close by, on the Westside or in Mid-City. Others may travel from Hollywood, Downtown or South Los Angeles. Still others may come from East Los Angeles or the South Bay. Some may make the trip from the San Fernando or San Gabriel Valley.

There is one office, at 6333 Wilshire Blvd, Suite 200, Los Angeles, CA 90048. Dr. Pimienta does not have offices in those other areas, but video visits can save many people the drive.

People see a GI doctor for many reasons, such as:

• Colorectal cancer screening, which most adults at average risk should start at age 45
• Heartburn, abdominal pain, bloating, constipation or diarrhea
• Blood in the stool, colon polyps found on a past colonoscopy, or trouble swallowing
• Abnormal liver tests or fatty liver disease
• Medical weight management, with a doctor board-certified in obesity medicine
• A second opinion about a diagnosis or treatment plan

The conditions page explains each one in plain language.

Video visits from anywhere in California

If you live in the Antelope Valley, the Santa Clarita Valley or near Long Beach, you may not want to cross the county for every visit. Secure video visits let you talk with Dr. Pimienta from home or work, as long as you are in California at the time of the visit.

Where you must be

Anywhere in California during the visit

Good for

Many consultations, follow-ups and test results

New patients

Video visits are not same-day

Some problems need an in-person exam, and procedures are always in person. Dr. Pimienta will tell you when a trip is worth it. You can read what you need for a video visit on the new patients page.

Planning an in-person visit

The Wilshire office is open Monday to Friday, 9:00 AM to 5:00 PM.

By Metro

The Metro D Line subway extension opened in May 2026. The D Line now reaches the Wilshire/Fairfax station from Downtown Los Angeles and Koreatown, and the office is a few blocks west of that station. If you live near another Metro line, you may be able to connect to the D Line downtown. Check Metro's D Line extension page for details.

By car

Freeway traffic in Los Angeles is hard to predict, especially at rush hour. Plan extra time so you are not rushing, and ask our team about parking when you book. If you are coming from far away, ask about a time of day that makes the drive easier.

If you need a procedure

Colonoscopy and upper endoscopy (EGD) are done at Specialty Surgical Center of Beverly Hills, at 8670 Wilshire Blvd, less than a mile west of the office. You go home the same day, and both exams can be done together if you need them.

The bowel prep for a colonoscopy starts the day before, so you will want to be near a bathroom at home. Our preparation page explains the steps.

Care in Spanish for LA's families

Many families in Los Angeles County speak Spanish at home. Dr. Pimienta speaks English and Spanish, so you can explain your symptoms, ask questions and understand your plan in the language you know best, without an interpreter. Se habla español. Our team can also help you schedule in Spanish, and this website is available in Spanish too. Family members are welcome at your visit, in person or on video.

Medicare and self-pay

Dr. Pimienta accepts Medicare, including patients with a secondary (supplemental) plan. Original Medicare does not require a referral to see a specialist. If you have a Medicare Advantage plan, call us before booking so we can check your plan.

For other insurance, the practice is out of network, so visits are self-pay. Our team calls you to explain pricing and how out-of-network benefits may work before anything is booked, and you get a superbill you can send to your insurance. Read more on the insurance and payment page.

Questions patients ask