The 20 Best Colitis Doctors Near Me in Fontana, CA

Find the Top Colitis Experts and Specialists

The 20 Best Colitis Doctors near Fontana, CA

Last Updated: 02/22/2026

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MediFind found 186 doctor with experience in Colitis near Fontana, CA. Of these, 173 are Experienced and 13 are Advanced.

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186 providers found
    Namita Mohideen
    Experienced in Colitis
    Experienced in Colitis

    Namita Mohideen MD Inc

    16465 Sierra Lakes Pkwy #115, 
    Fontana, CA 
     (4.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Your child's health is my top priority. Dr. Mohideen is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Food Allergy, Obesity in Children, Otitis, and Candida Infection of the Skin.

    George B. Saffouri
    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    San Bernardino Gastroenterology Associates

    2006 N Riverside Ave, Ste B, 
    Rialto, CA 
     (4.8 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 Colitis. His top areas of expertise are Hemorrhoids, Diverticular Disease, Chronic Erosive Gastritis, Endoscopy, and Colonoscopy. Dr. Saffouri is currently accepting new patients.

    Advanced in Colitis
    Advanced in Colitis

    Kaiser Permanente Fontana Medical Center

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

    Mitzi Loubriel is a primary care provider, practicing in Pediatrics in Fontana, California. Dr. Loubriel is rated as an Advanced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Otitis, Bronchitis, Asthma, and Roseola.

    Learn about our expert tiers
    Victor Guharoy
    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    San Bernardino Gastroenterology Associates, Inc.

    2006 N Riverside Ave, 
    Rialto, CA 
     (4.8 miles away)
    Experience:
    12+ years
    Languages Spoken:
    English

    Victor Guharoy is a Gastroenterologist in Rialto, California. Dr. Guharoy has been practicing medicine for over 12 years and is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Gastrointestinal Bleeding, Hemorrhoids, Diverticular Disease, Acute Pancreatitis, and Gastrectomy.

    Andrea S. Tieng
    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    Andrea S Tieng MD, Inc

    10801 Foothill Blvd, Ste 106, 
    Rancho Cucamonga, CA 
     (7.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Dr. Andrea Tieng was born and raised in New York City. She graduated Summa Cum Laude from the City University of New York and completed her medical degree at the State University of New York Health Science Center at the SUNY Downstate College of Medicine in Brooklyn, New York.Her internship and residency in Internal Medicine was completed at the Albert Einstein College of Medicine at Long Island Jewish Medical Center in New Hyde Park, New York, where she also fulfilled her Gastroenterology and Hepatology Fellowship.Board Certified by the American Board of Internal Medicine, Dr. Tieng is licensed to practice in both California and New York. She is a member of the American College of Gastroenterology and the American Gastroenterology Association.Prior to founding her own practice in Redlands and San Bernardino, Dr. Tieng worked as a private gastroenterologist at Cedars-Sinai Medical Center in Los Angeles.Dr. Tieng specializes in providing sensitive and compassionate care to women, and delivers personalized care to all patients 18 years and older. Dr. Tieng is a board certified physician who treats patients with gastrointestinal illnesses and liver diseases. She utilizes innovative technology to perform diagnostic and therapeutic procedures of the gastrointestinal tract, including colonoscopy and upper endoscopy. Dr. Tieng is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Diverticular Disease, Familial Adenomatous Polyposis, Gastritis, Gastrectomy, and Endoscopy.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Fontana Medical Center

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Tienanh Pham is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Pham is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Bronchitis, Asthma in Children, Asthma, and Parinaud Oculoglandular Syndrome. Dr. Pham is currently accepting new patients.

    Experienced in Colitis
    Pediatrics
    Experienced in Colitis
    Pediatrics

    Kaiser Permanente Fontana Medical Center

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

    Bruce Grill is a Pediatrics provider in Fontana, California. Dr. Grill is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Delayed Growth, Autism Spectrum Disorder, Encopresis, and Colitis.

    Experienced in Colitis
    Pediatric Gastroenterology
    Experienced in Colitis
    Pediatric Gastroenterology

    Kaiser Permanente Fontana Medical Center

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

    Mun-wah Ng is a Pediatric Gastroenterologist in Fontana, California. Dr. Ng is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Cardiofaciocutaneous Syndrome, Fecal Impaction, RASopathies, and Encopresis.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Fontana Medical Center

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Tarvinder Singh is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Singh is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Parinaud Oculoglandular Syndrome, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Lymphangitis, and Otitis. Dr. Singh is currently accepting new patients.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Fontana Medical Center

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

    Syed Yusuf is a primary care provider, practicing in Internal Medicine in Fontana, California. Dr. Yusuf is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Gastrointestinal Bleeding, Pneumonia, Atypical Pneumonia, Endoscopy, and Colonoscopy.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Fontana Medical Center

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Jiao Xue is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Xue is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Asthma, Lymphangitis, Asthma in Children, and Morning Sickness. Dr. Xue is currently accepting new patients.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Fontana Medical Center

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Sayuri Tokutake is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Tokutake is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Nasal Flaring, Morning Sickness, Neuralgia, and Cellulitis. Dr. Tokutake is currently accepting new patients.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Kaiser Permanente Fontana Medical Center

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

    Tenzin Janjung is a primary care provider, practicing in Internal Medicine in Fontana, California. Dr. Janjung is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Sepsis, Fractured Spine, Neurotoxicity Syndromes, Pneumonia, and Ureteroscopy.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Fontana Medical Center

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Carlyn Estrella is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Estrella is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Asthma in Children, and Asthma.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Kaiser Permanente Fontana Medical Center

    9961 Sierra Avenue, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Bakr Khalifa is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Khalifa is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Asthma, Bronchitis, Asthma in Children, and Parinaud Oculoglandular Syndrome. Dr. Khalifa is currently accepting new patients.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Fontana Medical Center

    9961 Sierra Avenue, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Andrew Chang is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Chang is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Costochondritis, Tietz Syndrome, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), and Asthma. Dr. Chang is currently accepting new patients.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Fontana Medical Center

    9961 Sierra Avenue, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Tri Chau is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Chau is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Tietz Syndrome, Costochondritis, Asthma, and Asthma in Children. Dr. Chau is currently accepting new patients.

    Experienced in Colitis
    Experienced in Colitis

    Kaiser Permanente Fontana Medical Center

    9961 Sierra Avenue, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Rosarin Kriengprarthana is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Kriengprarthana is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Parainfluenza, Parainfluenza Virus Type 3, Asthma in Children, and Asthma. Dr. Kriengprarthana is currently accepting new patients.

    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    Fontana Medical Center

    9961 Sierra Avenue, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Robert Kung is a Gastroenterologist in Fontana, California. Dr. Kung is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Gastritis, Esophageal Varices, Alcoholic Cirrhosis, and Hemorrhoids. Dr. Kung is currently accepting new patients.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Benny J Guzman, MD & Yi - Chien Emma Lee, Do

    8253 Sierra Ave Ste 200, 
    Fontana, CA 
     (1.7 miles away)
    Languages Spoken:
    English

    Jian Chen is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Chen is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Bronchitis, Acute Cystitis, Tonsillitis, and Sinusitis.

    Showing 1-20 of 186

    Last Updated: 02/22/2026

    What is the definition of Colitis?

    Colitis is swelling (inflammation) of the large intestine (colon).

    When should I see a Colitis doctor near Fontana, 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 Colitis doctor near Fontana, 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 Colitis doctors near Fontana, 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 Colitis doctors near Fontana, 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 Colitis doctor near Fontana, 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 Colitis doctor search results page. 

    Why is it important to get a second opinion from a different Colitis 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 Colitis doctor near Fontana, 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 Colitis 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 Colitis 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 Colitis doctors near Fontana, CA?

    Look for the filter feature on the left side of the Colitis 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 Colitis doctor that offers video calls?

    Look for the filter feature on the left-side of the Colitis 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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