Mark Pimentel, MD | West Hollywood, CA | Gastroenterologist

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Dr. Mark Pimentel treats gas, bloating and burping, and constipation, and performs colonoscopy and lower GI endoscopy. He practices gastroenterology and has 34 years of experience. He also performs bladder training.

Dr. Pimentel completed two residencies at the University of Manitoba, finishing in 1996, followed by a fellowship at Cedars-Sinai in 1999. He is affiliated with Cedars-Sinai Medical Center and sees patients in West Hollywood, California.

Overview based on verified provider data

accepting new patients
4.2

21 Ratings
34 years of experience
38 insurance plans accepted
speaks English
Cedars-Sinai
8 written reviews
1 specialty
12 areas of expertise
1 hospital affiliation
1 office location
Male

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me

Based on patient feedback. Read the reviews

Mark Pimentel's Ratings and Reviews

4.2

21 Ratings with 8 written Reviews

Average Wait Time 8 Minutes

How was your appointment with
Mark Pimentel?

Patients’ Perspective

Gave an accurate diagnosis: (8) Did WellNeeds Improvement (1)
Had a good bedside manner: (8) Did WellNeeds Improvement (1)
Spent time with me: (8) Did WellNeeds Improvement (1)
Provided follow-up after the visit: (6) Did WellNeeds Improvement (1)
Flexible scheduling: (7) Did WellNeeds Improvement (2)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

21 ratings & reviews

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Showing 1 to 8 of 8 reviews

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Dr.Pimentel is a great doctor and a very nice person.

Did Well

Needs Improvement

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling
Saw me in a timely manner
Staff was courteous

March 11th, 2024 | Source: Partner

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Dr Pimentel is excellent and allows his patients to participate in their own care which is lacking in most doctors today.

Did Well

Needs Improvement

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling
Saw me in a timely manner
Staff was courteous

December 11th, 2023 | Source: Partner

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Pimentel is a classic example of a doctor who is letting his popularity get to his head. He is not an investigator and if his one size fits all approach does not work for a patient he gives up on them and passes them on to another doctor. I observed him at a conference last year and he is standoffish and does not know how to answer many questions. I also heard from some of his past patients how he has no bedside manner.

Did Well

Needs Improvement

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

August 19th, 2018

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I like Dr. Pimentel. He's a good doctor!

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

March 28th, 2016

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The best of the best doctor I ever met!!!

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

January 7th, 2015

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Dr. Pimentel is a good doctor and a nice man.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

April 19th, 2011

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Dr. Pimentel is years ahead of everyone else when it comes to understanding Irritable Bowel Syndrome and Post Infectious IBS. His protocol for Small Intestinal Bacterial Overgrowth dramatically improved my symptoms and he is also a very nice man. I think the National Institute of Health should give all of their research money for Irritable Bowel Syndrome to him because he has had the most success in helping patients. His research has proven to be far more effective in helping IBS than any other research. I know his hard work and dedication will eventually lead to finding out the cause and cure of IBS. He has given many people with IBS hope and I hope he continues to conduct more research in the future.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

December 1st, 2010

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Dr. Pimentel is a caring doctor.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

June 3rd, 2009

Cedars-Sinai Gastrointestinal (GI) Motility

8720 Beverly Blvd LowrWest Hollywood, CA 90048

Tel: (310) 423-6143

Mon8:00 am - 5:00 pm

Tue8:00 am - 5:00 pm

Wed8:00 am - 5:00 pm

Thu8:00 am - 5:00 pm

Fri8:00 am - 5:00 pm

SatClosed

SunClosed


Mark Pimentel, MD	Ji Soo Choi, APRN	Theresa Obonyano, APRN	Rachel Oliver, APRN
Gastroenterology	Gastroenterology	Gastroenterology	Gastroenterology
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
4.2 (21 Ratings)	0 (0 Ratings)	0 (0 Ratings)	0 (0 Ratings)
34 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English	Speaks English	Speaks English	Speaks English
West Hollywood , CA	Sacramento , CA	Sacramento , CA	Sacramento , CA
Med School: University of Manitoba	Med School: New York University	Med School: The University of Texas Health Science Center at Houston	Med School: University of South Alabama
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Gastroenterology

Abdominal Pain
Acid Reflux Disease (Gastroesophageal Reflux / GERD)
Acid Reflux Disease (GERD)
Celiac Disease
Colonoscopy
Constipation
Esophageal Motility Disorders (Dysmotilities)
Gastroparesis
Hemorrhoids
Hepatitis C
Irritable Bowel Syndrome (IBS)
Ulcerative Colitis

Mark Pimentel holds an expired medical license in the state of California.

Medical License

Medical Doctor with an expired medical license in the state of California that expired in 2025.

Education & Training

Fellowship

Completed their fellowship at Cedars-Sinai in 1999.

Residency

Completed their residency at University of Manitoba in 1996 and University of Manitoba in 1993.

Medical School

Graduated from University of Manitoba in 1992.

NPI Number

Mark Pimentel's NPI number is 1750319356.

Jane Lee
Nurse Practitioner
| Mission Hills, CA
(0)
Coka Kiu Yip
Nurse Practitioner
| West Hollywood, CA
(0)
Roberto Alonso
Nurse Practitioner
| Baldwin Park, CA
(0)
Ashley Gianoulis Gill
Nurse Practitioner
| West Hollywood, CA
(0)
Janet M Shaffron
Nurse Practitioner
| Whittier, CA
(0)
Dr. Atu Agawu, MD
Pediatrics
11 Years Exp | Los Angeles, CA
(0)
Dr. John Redfernd Craig, MD
Pathology
57 Years Exp | Pasadena, CA
(1)
Dr. Russell James Merritt, MD
Nutrition
54 Years Exp | Los Angeles, CA
(1)
Dr. David Ash Bernstein, MD
Pathology
43 Years Exp | Harbor City, CA
(1)
Dr. Heena Apurva Shah, MD
Pediatrics
39 Years Exp | Palmdale, CA
(2)

Is Mark Pimentel accepting new patients?: Mark Pimentel is accepting new patients on Vitals. View Mark Pimentel's profile on Vitals to make an appointment.
What languages does Mark Pimentel speak?: Mark Pimentel speaks English.
Does Mark Pimentel accept virtual/telehealth appointments?: Mark Pimentel has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Mark Pimentel accept my insurance?: You can see the insurance plans that Mark Pimentel accepts on their Vitals profile.
Which hospitals is Mark Pimentel affiliated with?: Mark Pimentel is affiliated with Cedars Sinai Medical Center.

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