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    Last Updated: 10/30/2025

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    MediFind found 32 doctor with experience in Collagenous Colitis near Vancouver, WA. Of these, 30 are Experienced and 2 are Advanced.

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    32 providers found
      Experienced in Collagenous Colitis

      Dr. Glenn M. Eisen
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Glenn M. Eisen
      Gastroenterology

      The Oregon Clinic, PC

      Portland, OR 
       (9.8 miles away)
      503-297-8081
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      Glenn Eisen is a Gastroenterologist in Portland, Oregon. Dr. Eisen is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Barrett Esophagus, Gastrointestinal Bleeding, Angiodysplasia of the Colon, Colonoscopy, and Endoscopy. Dr. Eisen is currently accepting new patients.

      Experienced in Collagenous Colitis

      Dr. Maria A. Koscinska
      Internal Medicine
      Experienced in Collagenous Colitis

      Dr. Maria A. Koscinska
      Internal Medicine
      100 E 33rd St, Suite 206a, 
      Vancouver, WA 
       (1.2 miles away)
      360-695-1334
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients

      Maria Koscinska is a primary care provider, practicing in Internal Medicine in Vancouver, Washington. Dr. Koscinska is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. Her top areas of expertise are High Cholesterol, Osteomyelitis in Children, Hypertension, and Familial Hypertension. Dr. Koscinska is currently accepting new patients.

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

      Dr. Anil Kabrawala
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Anil Kabrawala
      Gastroenterology

      The Vancouver Clinic Inc Ps

      700 Ne 87th Ave, 
      Vancouver, WA 
       (4.3 miles away)
      360-882-2778
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

      Anil Kabrawala is a Gastroenterologist in Vancouver, Washington. Dr. Kabrawala is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Hepatitis, Hepatitis C, Endoscopy, and Gastrectomy.

      Learn about our expert tiers
      Experienced in Collagenous Colitis

      Dr. Jaime Wilson
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Jaime Wilson
      Gastroenterology

      The Vancouver Clinic Inc Ps

      700 Ne 87th Ave, 
      Vancouver, WA 
       (4.3 miles away)
      360-882-2778
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

      Jaime Wilson is a Gastroenterologist in Vancouver, Washington. Dr. Wilson is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Bile Duct Obstruction, Bile Duct Stricture, Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy.

      Experienced in Collagenous Colitis

      Dr. Mehdi Ferdows
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Mehdi Ferdows
      Gastroenterology
      814 Ne 87th Ave, 
      Vancouver, WA 
       (4.3 miles away)
      360-823-0880
      Languages Spoken:
      English
      See accepted insurances

      Mehdi Ferdows is a Gastroenterologist in Vancouver, Washington. Dr. Ferdows is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Heartburn, Familial Adenomatous Polyposis, Turcot Syndrome, and Gardner Syndrome.

      Experienced in Collagenous Colitis

      Dr. Dana Hemmati
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Dana Hemmati
      Gastroenterology

      Peacehealth

      8821 Ne 5th St, 
      Vancouver, WA 
       (4.6 miles away)
      360-514-1900
      Languages Spoken:
      English
      See accepted insurances

      Dana Hemmati is a Gastroenterologist in Vancouver, Washington. Dr. Hemmati is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. Her top areas of expertise are Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, Gastrectomy, and Colonoscopy.

      Advanced in Collagenous Colitis

      Dr. Amnon M. Sonnenberg
      Gastroenterology
      Advanced in Collagenous Colitis

      Dr. Amnon M. Sonnenberg
      Gastroenterology
      3710 Sw Us Veterans Hospital Rd, Portland Va Medical Center, P3-gi, 
      Portland, OR 
       (9.1 miles away)
      503-220-8262
      Languages Spoken:
      English
      See accepted insurances

      Amnon Sonnenberg is a Gastroenterologist in Portland, Oregon. Dr. Sonnenberg is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Helicobacter Pylori Infection, Gastritis, Viral Gastroenteritis, Endoscopy, and Colonoscopy.

      Advanced in Collagenous Colitis

      Dr. Elliot N. Joo
      Gastroenterology
      Advanced in Collagenous Colitis

      Dr. Elliot N. Joo
      Gastroenterology
      9701 Southwest Barnes Road, Suite 300, 
      Portland, OR 
       (9.8 miles away)
      503-297-8081
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      Elliot Joo is a Gastroenterologist in Portland, Oregon. Dr. Joo is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Visceromegaly, Pancreatic Cancer, Familial Pancreatic Cancer, Endoscopy, and Gastrectomy. Dr. Joo is currently accepting new patients.

      Experienced in Collagenous Colitis

      Dr. Jane A. Ware
      Internal Medicine
      Experienced in Collagenous Colitis

      Dr. Jane A. Ware
      Internal Medicine

      Legacy Emanuel Hospital And Health Center

      2801 N Gantenbein Ave, 
      Portland, OR 
       (5.9 miles away)
      503-413-2042
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      Jane Ware is a primary care provider, practicing in Internal Medicine in Portland, Oregon. Dr. Ware is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. Her top areas of expertise are Musculocontractural Ehlers-Danlos Syndrome (mcEDS), Ehlers-Danlos Syndrome (EDS), Mast Cell Activation Syndrome (MCAS), and Meige Disease. Dr. Ware is currently accepting new patients.

      Experienced in Collagenous Colitis

      Dr. Nicole B. Weksler
      Internal Medicine
      Experienced in Collagenous Colitis

      Dr. Nicole B. Weksler
      Internal Medicine

      Legacy Emanuel Hospital And Health Center

      2801 N Gantenbein Ave, 
      Portland, OR 
       (5.9 miles away)
      503-413-2042
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      Nicole Weksler is a primary care provider, practicing in Internal Medicine in Portland, Oregon. Dr. Weksler is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. Her top areas of expertise are Granulomatosis with Polyangiitis, Necrotizing Vasculitis, Insomnia, and Sitosterolemia. Dr. Weksler is currently accepting new patients.

      Experienced in Collagenous Colitis

      Dr. Theodore Tollivoro
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Theodore Tollivoro
      Gastroenterology
      500 Ne Multnomah St, Ste. 100 / Fl. 11, 
      Portland, OR 
       (6.7 miles away)
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

      Theodore Tollivoro is a Gastroenterologist in Portland, Oregon. Dr. Tollivoro is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Acute Pancreatitis, Intestinal Cancer, Childhood Pancreatitis, Gastrectomy, and Colonoscopy.

      Experienced in Collagenous Colitis

      Dr. Sarah A. Rodriguez
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Sarah A. Rodriguez
      Gastroenterology

      The Oregon Clinic, PC

      Portland, OR 
       (7.2 miles away)
      503-239-6673
      Languages Spoken:
      English
      See accepted insurances
      Offers Telehealth

      Sarah Rodriguez is a Gastroenterologist in Portland, Oregon. Dr. Rodriguez is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. Her top areas of expertise are Cholestasis, Bile Duct Obstruction, Bile Duct Stricture, Endoscopy, and Gastrectomy.

      Experienced in Collagenous Colitis

      Dr. Amy E. Schmitt
      Internal Medicine
      Experienced in Collagenous Colitis

      Dr. Amy E. Schmitt
      Internal Medicine
      4805 Northeast Glisan Street, 
      Portland, OR 
       (7.5 miles away)
      503-215-1111
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients

      Amy Schmitt is a primary care provider, practicing in Internal Medicine in Portland, Oregon. Dr. Schmitt is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. Her top areas of expertise are Peptic Ulcer, Hypertensive Heart Disease, Necrosis, Sepsis, and Hip Replacement. Dr. Schmitt is currently accepting new patients.

      Experienced in Collagenous Colitis

      Dr. Albert H. Khine
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Albert H. Khine
      Gastroenterology
      800 Southwest 13th Avenue, 
      Portland, OR 
       (7.6 miles away)
      503-221-0161
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients

      Albert Khine is a Gastroenterologist in Portland, Oregon. Dr. Khine is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, and Hemorrhoids. Dr. Khine is currently accepting new patients.

      Experienced in Collagenous Colitis

      Dr. Chris B. Hyun
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Chris B. Hyun
      Gastroenterology
      800 Southwest 13th Avenue, 
      Portland, OR 
       (7.6 miles away)
      503-221-0161
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      Chris Hyun is a Gastroenterologist in Portland, Oregon. Dr. Hyun is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Turcot Syndrome, Heartburn, and Gardner Syndrome. Dr. Hyun is currently accepting new patients.

      Experienced in Collagenous Colitis

      Dr. Young K. Choi
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Young K. Choi
      Gastroenterology
      800 Southwest 13th Avenue, 
      Portland, OR 
       (7.6 miles away)
      503-221-0161
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      Young Choi is a Gastroenterologist in Portland, Oregon. Dr. Choi is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Hemorrhoids, Familial Adenomatous Polyposis, Turcot Syndrome, Diverticular Disease, and Endoscopy. Dr. Choi is currently accepting new patients.

      Experienced in Collagenous Colitis

      Dr. James K. Regan
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. James K. Regan
      Gastroenterology
      1111 Northeast 99th Avenue, Suite 301, 
      Portland, OR 
       (7.7 miles away)
      503-963-2707
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      James Regan is a Gastroenterologist in Portland, Oregon. Dr. Regan is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Bile Duct Obstruction, Painful Swallowing, Swallowing Difficulty, Endoscopy, and Gastrectomy. Dr. Regan is currently accepting new patients.

      Experienced in Collagenous Colitis

      Dr. Hong Shen
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Hong Shen
      Gastroenterology
      1111 Northeast 99th Avenue, Suite 301, 
      Portland, OR 
       (7.7 miles away)
      503-963-2707
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      Hong Shen is a Gastroenterologist in Portland, Oregon. Dr. Shen is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, and Crohn's Disease. Dr. Shen is currently accepting new patients.

      Experienced in Collagenous Colitis

      Dr. Rebecca A. Fausel
      Internal Medicine | Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Rebecca A. Fausel
      Internal Medicine | Gastroenterology
      1111 Northeast 99th Avenue, Suite 301, 
      Portland, OR 
       (7.7 miles away)
      503-963-2707
      Experience:
      17+ years
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      Rebecca Fausel is an Internal Medicine specialist and a Gastroenterologist in Portland, Oregon. Dr. Fausel has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. Her top areas of expertise are Ulcerative Colitis, Crohn's Disease, Colitis, Colonoscopy, and Endoscopy. Dr. Fausel is currently accepting new patients.

      Experienced in Collagenous Colitis

      Dr. Don F. Lum
      Gastroenterology
      Experienced in Collagenous Colitis

      Dr. Don F. Lum
      Gastroenterology
      1111 Northeast 99th Avenue, Suite 301, 
      Portland, OR 
       (7.7 miles away)
      503-963-2707
      Languages Spoken:
      English
      See accepted insurances
      Accepting New Patients
      Offers Telehealth

      Don Lum is a Gastroenterologist in Portland, Oregon. Dr. Lum is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Crohn's Disease, Ulcerative Colitis, Swallowing Difficulty, Painful Swallowing, and Endoscopy. Dr. Lum is currently accepting new patients.

      Showing 1-20 of 32

      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 Vancouver, WA?

      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 Vancouver, WA?

      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 Vancouver, WA?

      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 Vancouver, WA?

      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 Vancouver, WA?

      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 Vancouver, WA?

      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 Vancouver, WA?

      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 Vancouver, WA?

      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 

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