The 20 Best Diarrhea Doctors Near Me in San Bernardino, CA

Find the Top Diarrhea Experts and Specialists

The 20 Best Diarrhea Doctors near San Bernardino, CA

Last Updated: 02/22/2026

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MediFind found 196 doctor with experience in Diarrhea near San Bernardino, CA. Of these, 188 are Experienced and 8 are Advanced.

Location
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196 providers found
    Experienced in Diarrhea
    Pediatrics
    Experienced in Diarrhea
    Pediatrics

    Faculty Medical Group Of Llusm

    11234 Anderson St, 
    Loma Linda, CA 
     (4.0 miles away)
    Languages Spoken:
    English

    Lance Brown is a Pediatrics provider in Loma Linda, California. Dr. Brown is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Genetic Epilepsy with Febrile Seizures Plus (GEFS+), Diarrhea, Croup, Inappropriate Sinus Tachycardia (IST), and Gastrostomy.

    Experienced in Diarrhea
    Pediatrics
    Experienced in Diarrhea
    Pediatrics

    Loma Linda Univ Anesthesiology Medical Group Inc

    11234 Anderson St, 
    Loma Linda, CA 
     (4.0 miles away)
    Languages Spoken:
    English

    Brian Chen is a Pediatrics provider in Loma Linda, California. Dr. Chen is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Genetic Epilepsy with Febrile Seizures Plus (GEFS+), Croup, Diarrhea, and Herpangina.

    Experienced in Diarrhea
    Experienced in Diarrhea

    Loma Linda Univ Anesthesiology Medical Group Inc

    11234 Anderson St, 
    Loma Linda, CA 
     (4.0 miles away)
    Languages Spoken:
    English

    James Moynihan is a Pediatrics provider in Loma Linda, California. Dr. Moynihan is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Genetic Epilepsy with Febrile Seizures Plus (GEFS+), Diarrhea, Croup, and Aseptic and Alopecic Nodules of Scalp (AANS).

    Learn about our expert tiers
    Experienced in Diarrhea
    Pediatrics
    Experienced in Diarrhea
    Pediatrics

    Loma Linda Univ Anesthesiology Medical Group Inc

    11234 Anderson St, 
    Loma Linda, CA 
     (4.0 miles away)
    Languages Spoken:
    English

    Ngoc Bui is a Pediatrics provider in Loma Linda, California. Dr. Bui is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Croup, Genetic Epilepsy with Febrile Seizures Plus (GEFS+), and Diarrhea.

    Experienced in Diarrhea
    Pediatrics
    Experienced in Diarrhea
    Pediatrics

    Loma Linda Univ Anesthesiology Medical Group Inc

    11234 Anderson St, 
    Loma Linda, CA 
     (4.0 miles away)
    Languages Spoken:
    English

    Natasha Li is a Pediatrics provider in Loma Linda, California. Dr. Li is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Croup, Genetic Epilepsy with Febrile Seizures Plus (GEFS+), Asthma in Children, and Viral Gastroenteritis.

    Experienced in Diarrhea
    Pediatrics
    Experienced in Diarrhea
    Pediatrics

    Loma Linda Univ Anesthesiology Medical Group Inc

    11234 Anderson St, 
    Loma Linda, CA 
     (4.0 miles away)
    Languages Spoken:
    English

    Aqeel Khan is a Pediatrics provider in Loma Linda, California. Dr. Khan is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top area of expertise is Diarrhea.

    Experienced in Diarrhea
    Experienced in Diarrhea

    Office

    11234 Anderson St Rm A890A, 
    Loma Linda, CA 
     (4.3 miles away)
    Languages Spoken:
    English

    Christine Lee is a Pediatrics provider in Loma Linda, California. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Genetic Epilepsy with Febrile Seizures Plus (GEFS+), Diarrhea, Croup, and Infantile Pyloric Stenosis.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology

    J. Robert Evans, M.D., P.C.

    355 E 21st St, 
    San Bernardino, CA 
     (2.2 miles away)
    Experience:
    48+ years
    Languages Spoken:
    English

    J Evans is a Gastroenterologist in San Bernardino, California. Dr. Evans has been practicing medicine for over 48 years and is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Hemorrhoids, Gardner Syndrome, Painful Swallowing, Gastrostomy, and Deep Brain Stimulation.

    Advanced in Diarrhea
    Internal Medicine
    Advanced in Diarrhea
    Internal Medicine

    Desert Valley Hospital

    11234 Anderson St, 
    Loma Linda, CA 
     (4.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Charbel Aoun is a primary care provider, practicing in Internal Medicine in Loma Linda, California. Dr. Aoun is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Necrosis, Peptic Ulcer, Cellulitis, Endoscopy, and Gastrostomy.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology

    Javed N. Sadiq MD Inc

    26021 Business Center Dr, 
    Redlands, CA 
     (4.2 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Offers Telehealth

    Javed Sadiq is a Gastroenterologist in Redlands, California. Dr. Sadiq has been practicing medicine for over 17 years and is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Familial Adenomatous Polyposis, Gas Bloat Syndrome, Gastritis, Endoscopy, and Gastrostomy.

    George B. Saffouri
    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology

    San Bernardino Gastroenterology Associates

    2006 N Riverside Ave, Ste B, 
    Rialto, CA 
     (5.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    George Saffouri is a Gastroenterologist in Rialto, California. Dr. Saffouri is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Hemorrhoids, Diverticular Disease, Chronic Erosive Gastritis, Endoscopy, and Colonoscopy. Dr. Saffouri is currently accepting new patients.

    Advanced in Diarrhea
    Pediatrics
    Advanced in Diarrhea
    Pediatrics

    Kaiser Permanente Fontana Medical Center

    9961 Sierra Ave, 
    Fontana, CA 
     (8.5 miles away)
    Languages Spoken:
    English

    Andrea Thorp is a Pediatrics provider in Fontana, California. Dr. Thorp is rated as an Advanced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Genetic Epilepsy with Febrile Seizures Plus (GEFS+), Diarrhea, Croup, Asthma in Children, and Gastrostomy.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Optum - San Bernardino Medical Group

    1700 N Waterman Ave, 
    San Bernardino, CA 
     (1.9 miles away)
    Experience:
    31+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Nesib Ali is a primary care provider, practicing in Family Medicine in San Bernardino, California. Dr. Ali has been practicing medicine for over 31 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Osteomyelitis in Children, Type 2 Diabetes (T2D), High Cholesterol, and Cirrhosis. Dr. Ali is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Optum - San Bernardino

    1700 N Waterman Ave, 
    San Bernardino, CA 
     (1.9 miles away)
    Languages Spoken:
    English

    Neomal Muthumala is a primary care provider, practicing in Family Medicine in San Bernardino, California. Dr. Muthumala is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Neuralgia, Acute Cystitis, Cellulitis, and Giant Papillary Conjunctivitis.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Optum - San Bernardino

    1700 N Waterman Ave, 
    San Bernardino, CA 
     (1.9 miles away)
    Languages Spoken:
    English

    Carina Buhay is a primary care provider, practicing in Internal Medicine in San Bernardino, California. Dr. Buhay is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Osteomyelitis in Children, Type 2 Diabetes (T2D), Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Optum - San Bernardino Medical Group

    1700 N Waterman Ave, 
    San Bernardino, CA 
     (1.9 miles away)
    Experience:
    31+ years
    Languages Spoken:
    English
    Accepting New Patients

    Mission StatementSan Bernardino Medical Group, Inc., a multi-specialty medical group, supports the Inland Empire area in the provision of comprehensive, appropriate, ambulatory health care for adults and children in an efficient, safe, timely, and cost-effective manner. Care is given to every patient not only for the treatment of injury and sickness, but for the maintenance of health and prevention of illness as well. Dr. Dao is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Type 2 Diabetes (T2D), Osteomyelitis in Children, High Cholesterol, and Sitosterolemia.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Optum - San Bernardino Medical Group

    1700 N Waterman Ave, 
    San Bernardino, CA 
     (1.9 miles away)
    Experience:
    38+ years
    Languages Spoken:
    English
    Accepting New Patients

    Donna Thompson is a primary care provider, practicing in Family Medicine in San Bernardino, California. Dr. Thompson has been practicing medicine for over 38 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are High Cholesterol, Type 2 Diabetes (T2D), Familial Hypertension, and Hypertension. Dr. Thompson is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    San Bernardino Medical Group Inc

    1700 N Waterman Ave, 
    San Bernardino, CA 
     (1.9 miles away)
    Languages Spoken:
    English

    Wilfredo Tupas is a primary care provider, practicing in Internal Medicine in San Bernardino, California. Dr. Tupas is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Empyema, Sinusitis, Benign Paroxysmal Positional Vertigo, and Vertigo.

    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology

    Won Jo, M.D. Inc

    424 E Vanderbilt Way, 
    San Bernardino, CA 
     (1.9 miles away)
    Experience:
    27+ years
    Languages Spoken:
    English

    Dr. Jo grew up in Los Angeles and attended college at Duke University. After obtaining his M.D. degree from the University of California, San Diego, Dr. Jo performed his internship and residency at Tufts-New England Medical Center in Boston, Massachusetts. Dr. Jo completed his fellowship training in gastroenterology and hepatology at Massachusetts General Hospital, one of the two major hospitals affiliated with Harvard Medical School. Dr. Jo was engaged in colon cancer research and taught at Harvard Medical School during his fellowship. Dr. Jo has several publications in national journals regarding the genetics and treatment of colon cancer.  Dr. Jo was on the medical staff at the University of California, San Diego and practiced in Laguna Hills, California before joining the San Bernardino and Redlands community in 2007.Our expert gastroenterologists are dedicated to helping you feel better from the inside out. They listen to how your digestive disorder affects your life, we employ the latest diagnostic equipment and techniques, and design a care plan that's right for you. Patient Centered, our caring and compassionate staff treats you with the respect and dignity you deserve. We believe in the Team Approach where an interdisciplinary team of experts work seamlessly together to provide exceptional care. Dr. Jo is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Familial Adenomatous Polyposis, Hemorrhoids, Diverticular Disease, and Gastroesophageal Reflux Disease (GERD).

    Experienced in Diarrhea
    Experienced in Diarrhea

    Molina Healthcare Of California

    190 E Highland Ave, 
    San Bernardino, CA 
     (2.2 miles away)
    Languages Spoken:
    English

    Roshunda Coleman is a Pediatrics provider in San Bernardino, California. Dr. Coleman is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Obesity in Children, Autism Spectrum Disorder, Asthma in Children, and Delayed Growth.

    Showing 1-20 of 196

    Last Updated: 02/22/2026

    What is the definition of Diarrhea?

    Diarrhea is when you pass loose or watery stool.

    When should I see a Diarrhea doctor near San Bernardino, CA?

    There are various reasons why you may want to see a specialist, such as: 

    • Your primary care provider recommends it. 
    • Your condition requires expert knowledge and specialized care. 
    • Your symptoms persist or worsen despite treatment. 
    • You need specialized testing or procedures. 
    • You want a second opinion.  

    What should I consider when choosing a Diarrhea doctor near San Bernardino, CA?

    It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

    How does MediFind rank Diarrhea doctors near San Bernardino, CA?

    MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

    What types of insurance are accepted by Diarrhea doctors near San Bernardino, CA?

    Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

    How can I book an appointment online with a Diarrhea doctor near San Bernardino, CA?

    MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Diarrhea doctor search results page. 

    Why is it important to get a second opinion from a different Diarrhea doctor?

    Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

    How can I prepare for my appointment with a Diarrhea doctor near San Bernardino, CA?

    Prepare for your appointment by gathering the following items: 

    • Copies of medical records (dating back at least one year) 
    • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
    • Family history of disease 
    • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
    • Allergies to medications, food, latex, insects, etc.  
    • List of questions and concerns 
    • Your insurance card 

    You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

    What questions should I ask my Diarrhea doctor?

    Here are some sample questions: 

    • Can you explain in simple terms what this condition is and how it’s treated? 
    • What symptoms or side effects should I watch for? 
    • What tests will be involved, and when can I expect results? 
    • Are there other specialists I need to see? 
    • What’s the best way to reach you if I have follow-up questions? 

    How can I learn about the latest clinical trials and research advances my Diarrhea doctor may know about?

    MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

    MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

    Can I filter my search to show male or female Diarrhea doctors near San Bernardino, CA?

    Look for the filter feature on the left side of the Diarrhea doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

    Can I filter my search to find a Diarrhea doctor that offers video calls?

    Look for the filter feature on the left-side of the Diarrhea doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

    Reviewed on: 11/11/24  

    By: MediFind Medical Staff 

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