Filters

Specialty
Additional Specialty
Distance
    Gender
    Insurance
    Availability
    Language
    Years of Experience
    Level of Expertise

    Last Updated: 10/30/2025

    Save doctors for later
    Sign Up
    Not sure about your diagnosis?
    Check Your Symptoms
    Already have a doctor?
    Find A Second Opinion

    MediFind found 27 doctor with experience in Collagenous Colitis near Orange, CA. Of these, 25 are Experienced and 2 are Advanced.

    Location
    LocationClose
    27 providers found
      Advanced in Collagenous Colitis

      Dr. Carl G. Albers
      Gastroenterology
      Advanced in Collagenous Colitis

      Dr. Carl G. Albers
      Gastroenterology

      Uc Regents

      101 The City Dr S, 
      Orange, CA 
       (2.0 miles away)
      714-456-7002
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

      Carl Albers is a Gastroenterologist in Orange, California. Dr. Albers is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Gas Bloat Syndrome, Hepatitis, Jaundice, Endoscopy, and Colonoscopy.

      Experienced in Collagenous Colitis

      Dr. James J. Lee
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. James J. Lee
      Gastroenterology
      1010 West La Veta Avenue, Suite 570, 
      Orange, CA 
       (1.2 miles away)
      714-835-7700
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      James Lee is a Gastroenterologist in Orange, California. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Gas Bloat Syndrome, Familial Adenomatous Polyposis, Gastroesophageal Reflux Disease (GERD), Gastrostomy, and Endoscopy. Dr. Lee is currently accepting new patients.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Experienced in Collagenous Colitis

      Dr. Haig Najarian
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Haig Najarian
      Gastroenterology
      1010 West La Veta Avenue, Suite 570, 
      Orange, CA 
       (1.2 miles away)
      714-835-7700
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      Haig Najarian is a Gastroenterologist in Orange, California. Dr. Najarian is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Ascites, Gastroesophageal Reflux Disease (GERD), Visceromegaly, Gastrectomy, and Endoscopy. Dr. Najarian is currently accepting new patients.

      Learn about our expert tiers
      Experienced in Collagenous Colitis

      Dr. William E. Karnes
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. William E. Karnes
      Gastroenterology

      Uc Regents

      101 The City Dr S, 
      Orange, CA 
       (2.0 miles away)
      714-456-7002
      Experience:
      43+ years
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

      William Karnes is a Gastroenterologist in Orange, California. Dr. Karnes has been practicing medicine for over 43 years and is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Trichohepatoenteric Syndrome, Nonalcoholic Steatohepatitis (NASH), Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy.

      Experienced in Collagenous Colitis

      Dr. Sandra S. Park
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Sandra S. Park
      Gastroenterology

      Uc Regents

      101 The City Dr S, 
      Orange, CA 
       (2.0 miles away)
      714-456-7004
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

      Sandra Park is a Gastroenterologist in Orange, California. Dr. Park is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. Her top areas of expertise are Crohn's Disease, Ulcerative Colitis, Colitis, Endoscopy, and Gastrectomy.

      Experienced in Collagenous Colitis

      Dr. Keith Martin
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Keith Martin
      Gastroenterology

      Regents Of The University Of California

      101 The City Dr S, 
      Orange, CA 
       (2.0 miles away)
      714-456-7002
      Languages Spoken:
      English
      See accepted insurances

      Keith Martin is a Gastroenterologist in Orange, California. Dr. Martin is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Diverticular Disease, Hemorrhoids, Endoscopy, and Gastrectomy.

      Advanced in Collagenous Colitis

      Dr. Long Dang
      Gastroenterology
      Advanced in Collagenous Colitis

      Dr. Long Dang
      Gastroenterology
      7891 Westminster Blvd, 
      Westminster, CA 
       (8.1 miles away)
      714-839-9091
      Languages Spoken:
      English
      See accepted insurances

      Long Dang is a Gastroenterologist in Westminster, California. Dr. Dang is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Chronic Erosive Gastritis, Gastritis, Gastrointestinal Bleeding, Gastrectomy, and Gastrostomy.

      Experienced in Collagenous Colitis

      Dr. Kavita Singh
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Kavita Singh
      Gastroenterology

      Associated Gastroenterology Medical Group

      1211 W La Palma Ave, Suite 306, 
      Anaheim, CA 
       (6.2 miles away)
      714-778-1300
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

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

      Experienced in Collagenous Colitis

      Dr. Duke Nguyen
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Duke Nguyen
      Gastroenterology
      18111 Brookhurst St, Suite 3100, 
      Fountain Valley, CA 
       (8.3 miles away)
      714-378-7390
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

      Duke Nguyen is a Gastroenterologist in Fountain Valley, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Irritable Bowel Syndrome (IBS), Gastroesophageal Reflux Disease (GERD), Gastritis, Gastrectomy, and Colonoscopy.

      Experienced in Collagenous Colitis

      Dr. Jack C. Feng
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Jack C. Feng
      Gastroenterology

      Providence Medical Foundation

      1950 Sunny Crest Dr, Suite 2900, 
      Fullerton, CA 
       (8.5 miles away)
      714-992-5350
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

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

      Experienced in Collagenous Colitis

      Dr. Elmer Chang
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Elmer Chang
      Gastroenterology

      Providence Medical Foundation

      1950 Sunny Crest Dr, Suite 2900, 
      Fullerton, CA 
       (8.5 miles away)
      714-992-5350
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

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

      Experienced in Collagenous Colitis

      Dr. Sajen J. Mathews
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Sajen J. Mathews
      Gastroenterology
      1837 Sunny Crest Drive, 
      Fullerton, CA 
       (8.6 miles away)
      714-446-5831
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

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

      Experienced in Collagenous Colitis

      Dr. Hyder Z. Jamal
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Hyder Z. Jamal
      Gastroenterology
      1837 Sunny Crest Drive, 
      Fullerton, CA 
       (8.6 miles away)
      714-446-5831
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      Hyder Jamal is a Gastroenterologist in Fullerton, California. Dr. Jamal is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Diverticular Disease, Familial Adenomatous Polyposis, Barrett Esophagus, Endoscopy, and Gastrostomy. Dr. Jamal is currently accepting new patients.

      Experienced in Collagenous Colitis

      Dr. Eugene J. Yoon
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Eugene J. Yoon
      Gastroenterology
      1837 Sunny Crest Drive, 
      Fullerton, CA 
       (8.6 miles away)
      714-446-5831
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      Eugene Yoon is a Gastroenterologist in Fullerton, California. Dr. Yoon is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Choledocholithiasis, Angiodysplasia of the Colon, Ascites, Endoscopy, and Gastrostomy. Dr. Yoon is currently accepting new patients.

      Experienced in Collagenous Colitis

      Dr. Erika M. Hoyos
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Erika M. Hoyos
      Gastroenterology
      1837 Sunny Crest Drive, 
      Fullerton, CA 
       (8.6 miles away)
      714-446-5831
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

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

      Experienced in Collagenous Colitis

      Dr. Shahrooz Bemanian
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Shahrooz Bemanian
      Gastroenterology

      Digestive Disease Consultants Of Orange County Inc

      113 Waterworks Way, Suite 155, 
      Irvine, CA 
       (10.0 miles away)
      949-612-9090
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

      Shahrooz Bemanian is a Gastroenterologist in Irvine, California. Dr. Bemanian is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Menetrier Disease, Gastrectomy, and Colonoscopy.

      Experienced in Collagenous Colitis

      Dr. Victor Yu
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Victor Yu
      Gastroenterology

      Digestive Disease Consultants Of Orange County Inc

      113 Waterworks Way, Suite 155, 
      Irvine, CA 
       (10.0 miles away)
      949-612-9090
      Languages Spoken:
      English
      See accepted insurances

      Victor Yu is a Gastroenterologist in Irvine, California. Dr. Yu is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Gas Bloat Syndrome, Gastrectomy, and Colonoscopy.

      Experienced in Collagenous Colitis

      Dr. Christopher Lee
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Christopher Lee
      Gastroenterology

      Christopher Evan Lee, M.D., Inc

      520 Superior Ave, Suite 290, 
      Newport Beach, CA 
       (11.7 miles away)
      949-645-6244
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

      Christopher Lee is a Gastroenterologist in Newport Beach, California. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Gardner Syndrome, Turcot Syndrome, Familial Adenomatous Polyposis, and Gastroesophageal Reflux Disease (GERD).

      Experienced in Collagenous Colitis

      Dr. Richard Quist
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Richard Quist
      Gastroenterology

      Richard G Quist, MD Medical Corporation Inc.

      520 Superior Ave, Suite 245, 
      Newport Beach, CA 
       (11.7 miles away)
      949-645-8300
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

      Richard Quist is a Gastroenterologist in Newport Beach, California. Dr. Quist is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Irritable Bowel Syndrome (IBS), Diverticular Disease, Colonoscopy, and Gastrectomy.

      Experienced in Collagenous Colitis

      Dr. Patricia Tsai
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Patricia Tsai
      Gastroenterology
      496 Old Newport Blvd, Suite 1, 
      Newport Beach, CA 
       (11.7 miles away)
      949-650-4630
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

      Patricia Tsai is a Gastroenterologist in Newport Beach, California. Dr. Tsai is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. Her top areas of expertise are Hiatal Hernia, Congenital Diaphragmatic Hernia, Gastroesophageal Reflux Disease (GERD), Gastrectomy, and Colonoscopy.

      Showing 1-20 of 27

      Last Updated: 10/30/2025

      What is the definition of Collagenous Colitis?

      Collagenous colitis is a type of inflammatory bowel disease that affects the colon. It is a form of microscopic colitis, which causes chronic diarrhea. In all forms of microscopic colitis, the colon appears normal or almost normal on colonoscopy, but the inflammation is visible when a biopsy of the colon is examined under a microscope (hence its name). People with this disease usually have between four and nine watery bowel movements per day, but in rare cases may have more than fifteen. Various other symptoms relating to the gastrointestinal system or other body symptoms may also be present. The cause of Collagenous colitis is not known but it is thought to be multifactorial. This means that both genetic and environmental factors may interact to cause a person to develop the disease. The extent to which genes play a role is unclear, but familial cases have been described. Certain medications, such as NSAIDS and proton pump inhibitors, have been reported to cause or trigger the disease in some people. However, strong evidence directly linking these medications to the disease is still lacking.

      When should I see a Collagenous Colitis doctor near Orange, 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 Collagenous Colitis doctor near Orange, 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 do I find the best Collagenous Colitis doctor near Orange, CA?

      You can find a Collagenous Colitis doctor in any of the 10 largest U.S. cities by clicking below:

      Collagenous Colitis doctor near New York, NY
      Collagenous Colitis doctor near Los Angeles, CA
      Collagenous Colitis doctor near Chicago, IL
      Collagenous Colitis doctor near Houston, TX
      Collagenous Colitis doctor near Phoenix, AZ
      Collagenous Colitis doctor near Philadelphia, PA
      Collagenous Colitis doctor near Atlanta, GA
      Collagenous Colitis doctor near Boston, MA
      Collagenous Colitis doctor near Dallas, TX
      Collagenous Colitis doctor near San Jose, CA

      How does MediFind rank Collagenous Colitis doctors near Orange, 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 Collagenous Colitis doctors near Orange, 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 Collagenous Colitis doctor near Orange, 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 Collagenous Colitis doctor search results page. 

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

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

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

      Read more about our Content Policy. 

      More Collagenous Colitis Doctors by city