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    Last Updated: 10/30/2025

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    MediFind found 510 doctor with experience in Diarrhea near Fullerton, CA. Of these, 480 are Experienced, 29 are Advanced and 1 are Distinguished.

    Location
    LocationClose
    510 providers found
      Advanced in Diarrhea
      Gastroenterology
      Advanced in Diarrhea
      Gastroenterology

      Providence Medical Foundation

      1950 Sunny Crest Dr, Suite 2900, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Jack Feng is a Gastroenterologist in Fullerton, California. Dr. Feng is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Familial Adenomatous Polyposis, Diverticular Disease, Gardner Syndrome, and Turcot Syndrome.

      Advanced in Diarrhea
      Gastroenterology
      Advanced in Diarrhea
      Gastroenterology

      Associated Gastroenterology Medical Group

      1211 W La Palma Ave, Suite 306, 
      Anaheim, CA 
       (1.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Dennis Riff is a Gastroenterologist in Anaheim, California. Dr. Riff is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Helicobacter Pylori Infection, Campylobacter Infection, Gastroesophageal Reflux Disease (GERD), Gastrostomy, and Gastrectomy.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Brian P. Riff
      Experienced in Diarrhea
      Gastroenterology
      Experienced in Diarrhea
      Gastroenterology
      1211 West La Palma Avenue, Suite 306, 
      Anaheim, CA 
       (1.7 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Brian Riff is a Gastroenterologist in Anaheim, California. Dr. Riff is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Campylobacter Infection, Gastrostomy, and Gastrectomy. Dr. Riff is currently accepting new patients.

      Learn about our expert tiers
      Advanced in Diarrhea
      Gastroenterology
      Advanced in Diarrhea
      Gastroenterology
      1837 Sunny Crest Drive, 
      Fullerton, CA 
       (2.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Sajen Mathews is a Gastroenterologist in Fullerton, California. Dr. Mathews is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastric Dysmotility, Diverticular Disease, Benign Esophageal Stricture, Endoscopy, and Gastrostomy.

      Advanced in Diarrhea
      Gastroenterology
      Advanced in Diarrhea
      Gastroenterology
      1837 Sunny Crest Drive, 
      Fullerton, CA 
       (2.2 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Scott Sainburg is a Gastroenterologist in Fullerton, California. Dr. Sainburg is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Benign Esophageal Stricture, Lower Esophageal Ring, Painful Swallowing, Endoscopy, and Gastrectomy. Dr. Sainburg is currently accepting new patients.

      Advanced in Diarrhea
      Gastroenterology
      Advanced in Diarrhea
      Gastroenterology
      1837 Sunny Crest Drive, 
      Fullerton, CA 
       (2.2 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Erika Hoyos is a Gastroenterologist in Fullerton, California. Dr. Hoyos is rated as an Advanced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Hemorrhoids, Intestinal Cancer, Chronic Erosive Gastritis, Endoscopy, and Gastrectomy. Dr. Hoyos is currently accepting new patients.

      Advanced in Diarrhea
      Gastroenterology
      Advanced in Diarrhea
      Gastroenterology
      1771 West Romneya Drive, Suite C, 
      Anaheim, CA 
       (2.4 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Ravindra Alapati is a Gastroenterologist in Anaheim, California. Dr. Alapati is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Swallowing Difficulty, Painful Swallowing, Chronic Erosive Gastritis, Gastrostomy, and Gastrectomy. Dr. Alapati is currently accepting new patients.

      Dennis J. Ponzio
      Experienced in Diarrhea
      Family Medicine
      Experienced in Diarrhea
      Family Medicine

      Caduceus Medical Group

      18200 Yorba Linda Blvd, Suite 250, 
      Yorba Linda, CA 
       (6.4 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Dennis Ponzio is a primary care provider, practicing in Family Medicine in Yorba Linda, California. Dr. Ponzio is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are High Cholesterol, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Hypertension.

      Experienced in Diarrhea
      Internal Medicine
      Experienced in Diarrhea
      Internal Medicine
      907 West Wilshire Avenue, 
      Fullerton, CA 
       (0.3 miles away)
      Languages Spoken:
      English

      Arun Patel is a primary care provider, practicing in Internal Medicine in Fullerton, California. Dr. Patel is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Maturity Onset Diabetes of the Young, Neuralgia, Vertigo, Endoscopy, and Gastrostomy.

      Experienced in Diarrhea
      Gastroenterology
      Experienced in Diarrhea
      Gastroenterology

      Providence Medical Foundation

      1950 Sunny Crest Dr, Suite 2900, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Elmer Chang is a Gastroenterologist in Fullerton, California. Dr. Chang is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Turcot Syndrome, Gastrectomy, and Endoscopy.

      Experienced in Diarrhea
      Family Medicine
      Experienced in Diarrhea
      Family Medicine

      Providence Medical Foundation

      1950 Sunny Crest Dr, Suite 2900, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English

      Robert Ranney is a primary care provider, practicing in Family Medicine in Fullerton, California. Dr. Ranney is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Infant Hyperglycemia, High Cholesterol, West Nile Virus Infection, and Osteomyelitis in Children.

      Experienced in Diarrhea
      Family Medicine
      Experienced in Diarrhea
      Family Medicine

      Providence Medical Foundation

      1950 Sunny Crest Dr, Suite 2900, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English

      Ketsana Vilaysane is a primary care provider, practicing in Family Medicine in Fullerton, California. Dr. Vilaysane is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Cellulitis, Sinusitis, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), and Peptic Ulcer.

      Experienced in Diarrhea
      Family Medicine
      Experienced in Diarrhea
      Family Medicine

      Providence Medical Foundation

      1950 Sunny Crest Dr, Suite 2900, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English

      John Murashige is a primary care provider, practicing in Family Medicine in Fullerton, California. Dr. Murashige is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Cellulitis, Acute Cystitis, Parinaud Oculoglandular Syndrome, and Pustules.

      Experienced in Diarrhea
      Family Medicine
      Experienced in Diarrhea
      Family Medicine

      Providence Medical Foundation

      1950 Sunny Crest Dr, Suite 2900, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English

      Linda Tran is a primary care provider, practicing in Family Medicine in Fullerton, California. Dr. Tran is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Cellulitis, Prerenal Azotemia, Sinusitis, and Empyema.

      Experienced in Diarrhea
      Family Medicine
      Experienced in Diarrhea
      Family Medicine

      Providence Medical Foundation

      100 E Valencia Mesa Dr, Suite 105, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English

      Tuan Phan is a primary care provider, practicing in Family Medicine in Fullerton, California. Dr. Phan is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Malignant Otitis Externa, Acute Cystitis, Cellulitis, and Osteomyelitis in Children.

      Experienced in Diarrhea
      Family Medicine
      Experienced in Diarrhea
      Family Medicine

      Providence Medical Foundation

      100 E Valencia Mesa Dr, Suite 105, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English

      Phuong Ly is a primary care provider, practicing in Family Medicine in Fullerton, California. Dr. Ly is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Tracheitis, Empyema, Sinusitis, and Lymphangitis.

      Experienced in Diarrhea
      Family Medicine | Internal Medicine
      Experienced in Diarrhea
      Family Medicine | Internal Medicine

      Providence Medical Foundation

      100 E Valencia Mesa Dr, Suite 105, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English

      Arash Farahanchi is a primary care provider, practicing in Family Medicine and Internal Medicine in Fullerton, California. Dr. Farahanchi is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Cellulitis, Pustules, Sinusitis, and Empyema.

      Experienced in Diarrhea
      Gastroenterology
      Experienced in Diarrhea
      Gastroenterology

      Associated Gastroenterology Medical Group

      1211 W La Palma Ave, Suite 306, 
      Anaheim, CA 
       (1.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Kavita Singh is a Gastroenterologist in Anaheim, California. Dr. Singh is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, Endoscopy, and Colonoscopy.

      Experienced in Diarrhea
      Gastroenterology
      Experienced in Diarrhea
      Gastroenterology

      Associated Gastroenterology Medical Group

      1211 W La Palma Ave, Suite 306, 
      Anaheim, CA 
       (1.7 miles away)
      Languages Spoken:
      English

      Kevin Kuettel is a Gastroenterologist in Anaheim, California. Dr. Kuettel is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Chronic Erosive Gastritis, Hiatal Hernia, Congenital Diaphragmatic Hernia, Gastrectomy, and Gastrostomy.

      Experienced in Diarrhea
      Gastroenterology
      Experienced in Diarrhea
      Gastroenterology
      1211 West La Palma Avenue, Suite 409, 
      Anaheim, CA 
       (1.7 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Ambika Bali is a Gastroenterologist in Anaheim, California. Dr. Bali is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Hemorrhoids, Menetrier Disease, Heartburn, Gastrectomy, and Colonoscopy. Dr. Bali is currently accepting new patients.

      Showing 1-20 of 510

      Last Updated: 10/30/2025

      What is the definition of Diarrhea?

      Diarrhea is when you pass loose or watery stool.

      When should I see a Diarrhea doctor near Fullerton, 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 Fullerton, 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 Fullerton, 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 Fullerton, 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 Fullerton, 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 Fullerton, 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 Fullerton, 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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