The 20 Best Collagenous Colitis Doctors Near Me in Reno, NV

Find the Top Collagenous Colitis Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 16 doctor with experience in Collagenous Colitis near Reno, NV. Of these, 13 are Experienced and 3 are Advanced.

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16 providers found
    Advanced in Collagenous Colitis

    Dr. Clark A. Harrison
    Gastroenterology
    Advanced in Collagenous Colitis

    Dr. Clark A. Harrison
    Gastroenterology
    Referral may be required

    Gastroenterology Consultants

    880 Ryland St, 
    Reno, NV 
     (0.8 miles away)
    800-442-0041
    Languages Spoken:
    English, Spanish
    See accepted insurances
    Accepting New Patients

    Clark Harrison is a Gastroenterologist practicing medicine in Reno, Nevada. Dr. Harrison is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Colitis, Viral Gastroenteritis, Gardner Syndrome, Endoscopy, and Gastrectomy. Dr. Harrison is board certified in American Board Of Internal Medicine. Dr. Harrison is currently accepting new patients.

    Advanced in Collagenous Colitis

    Dr. Tom C. Fang
    Gastroenterology
    Advanced in Collagenous Colitis

    Dr. Tom C. Fang
    Gastroenterology
    Referral may be required

    Gastroenterology Consultants

    880 Ryland St, 
    Reno, NV 
     (0.8 miles away)
    800-442-0041
    Languages Spoken:
    English, Manchu, Mandarin, Spanish
    See accepted insurances
    Accepting New Patients
    Offers Telehealth

    Tom Fang is a Gastroenterologist practicing medicine in Reno, Nevada. Dr. Fang is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 60 other conditions, according to our data. His clinical expertise encompasses Bile Duct Obstruction, Familial Adenomatous Polyposis, Gardner Syndrome, Gastrectomy, and Endoscopy. Dr. Fang is board certified in American Board Of Internal Medicine. Dr. Fang is currently accepting new patients.

    Advanced in Collagenous Colitis

    Dr. Erik M. De Jonghe
    Gastroenterology
    Advanced in Collagenous Colitis

    Dr. Erik M. De Jonghe
    Gastroenterology
    Referral may be required

    Digestive Health Associates

    655 Sierra Rose Dr, 
    Reno, NV 
     (4.0 miles away)
    775-829-7600
    Languages Spoken:
    English, Dutch, French
    See accepted insurances
    Accepting New Patients

    Erik De Jonghe is a Gastroenterologist practicing medicine in Reno, Nevada. Dr. De Jonghe is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Collagenous Colitis, Gastrointestinal Bleeding, Esophagitis, Gastrectomy, and Endoscopy. Dr. De Jonghe is board certified in American Board Of Internal Medicine. Dr. De Jonghe is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Collagenous Colitis

    Dr. Ronald L. Smith
    Family Medicine
    Experienced in Collagenous Colitis

    Dr. Ronald L. Smith
    Family Medicine

    Ronald L Smith MD

    236 W 6th St Ste 407, 
    Reno, NV 
     (0.2 miles away)
    775-329-3002
    Languages Spoken:
    English, Spanish
    See accepted insurances
    Accepting New Patients

    Ronald Smith is a primary care provider, practicing in Family Medicine in Reno, Nevada. Dr. Smith is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Bloom Syndrome, Urticaria Pigmentosa, High Cholesterol, and Collagenous Colitis. Dr. Smith is board certified in American Board Of Internal Medicine. Dr. Smith is currently accepting new patients.

    Experienced in Collagenous Colitis

    Dr. Eric M. Osgard
    Gastroenterology
    Experienced in Collagenous Colitis

    Dr. Eric M. Osgard
    Gastroenterology
    Referral may be required

    Gastroenterology Consultants

    880 Ryland St, 
    Reno, NV 
     (0.8 miles away)
    800-442-0041
    Languages Spoken:
    English, Spanish
    See accepted insurances
    Accepting New Patients

    Eric Osgard is a Gastroenterologist practicing medicine in Reno, Nevada. Dr. Osgard is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 36 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, Gastrectomy, and Endoscopy. Dr. Osgard is board certified in American Board Of Internal Medicine. Dr. Osgard is currently accepting new patients.

    Experienced in Collagenous Colitis

    Dr. Jonathan P. Pezanoski
    Gastroenterology
    Experienced in Collagenous Colitis

    Dr. Jonathan P. Pezanoski
    Gastroenterology
    Referral may be required

    Gastroenterology Consultants

    880 Ryland St, 
    Reno, NV 
     (0.8 miles away)
    800-442-0041
    Languages Spoken:
    English, Spanish
    See accepted insurances
    Accepting New Patients

    Jonathan Pezanoski is a Gastroenterologist practicing medicine in Reno, Nevada. Dr. Pezanoski is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 49 other conditions, according to our data. His clinical expertise encompasses Bile Duct Obstruction, Gardner Syndrome, Turcot Syndrome, Endoscopy, and Gastrectomy. Dr. Pezanoski is board certified in American Board Of Internal Medicine. Dr. Pezanoski is currently accepting new patients.

    Experienced in Collagenous Colitis

    Dr. Timothy E. Halterman
    Gastroenterology
    Experienced in Collagenous Colitis

    Dr. Timothy E. Halterman
    Gastroenterology
    Referral may be required

    Gastroenterology Consultants

    880 Ryland St, 
    Reno, NV 
     (0.8 miles away)
    800-442-0041
    Languages Spoken:
    English, Spanish
    See accepted insurances
    Accepting New Patients

    Timothy Halterman is a Gastroenterologist practicing medicine in Reno, Nevada. Dr. Halterman is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 54 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, Gastrectomy, and Endoscopy. Dr. Halterman is board certified in American Board Of Internal Medicine. Dr. Halterman is currently accepting new patients.

    Experienced in Collagenous Colitis

    Dr. Daniel R. Cummings
    Gastroenterology
    Experienced in Collagenous Colitis

    Dr. Daniel R. Cummings
    Gastroenterology
    Referral may be required

    Gastroenterology Consultants

    880 Ryland St, 
    Reno, NV 
     (0.8 miles away)
    800-442-0041
    Languages Spoken:
    English, Spanish
    See accepted insurances
    Accepting New Patients

    Daniel Cummings is a Gastroenterologist practicing medicine in Reno, Nevada. Dr. Cummings is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 31 other conditions, according to our data. His clinical expertise encompasses Gardner Syndrome, Turcot Syndrome, Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy. Dr. Cummings is board certified in American Board Of Internal Medicine. Dr. Cummings is currently accepting new patients.

    Experienced in Collagenous Colitis

    Dr. Stephen A. Bajo
    Internal Medicine
    Experienced in Collagenous Colitis

    Dr. Stephen A. Bajo
    Internal Medicine

    Office

    850 Harvard Way, 
    Reno, NV 
     (1.8 miles away)
    775-982-8256
    Languages Spoken:
    English
    See accepted insurances

    Stephen Bajo is a primary care provider, practicing in Internal Medicine in Reno, Nevada. Dr. Bajo is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His clinical expertise encompasses Collagenous Colitis and Colitis.

    Experienced in Collagenous Colitis

    Dr. Lynda M. Hoang
    Gastroenterology
    Experienced in Collagenous Colitis

    Dr. Lynda M. Hoang
    Gastroenterology
    Referral may be required

    Digestive Health Associates

    655 Sierra Rose Dr, 
    Reno, NV 
     (4.0 miles away)
    775-829-7600
    Languages Spoken:
    English, Vietnamese
    See accepted insurances
    Accepting New Patients

    Lynda Hoang is a Gastroenterologist practicing medicine in Reno, Nevada. Dr. Hoang is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Hemorrhoids, Painful Swallowing, Swallowing Difficulty, Endoscopy, and Gastrectomy. Dr. Hoang is board certified in American Osteopathic Board Of Internal. Dr. Hoang is currently accepting new patients.

    Experienced in Collagenous Colitis

    Dr. William Pfau
    Gastroenterology
    Experienced in Collagenous Colitis

    Dr. William Pfau
    Gastroenterology
    Referral may be required

    Digestive Health Associates

    655 Sierra Rose Dr, 
    Reno, NV 
     (4.0 miles away)
    775-829-7600
    Languages Spoken:
    English, Spanish
    See accepted insurances
    Accepting New Patients
    Offers Telehealth

    William Pfau is a Gastroenterologist practicing medicine in Reno, Nevada. Dr. Pfau is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Hemorrhoids, Swallowing Difficulty, Painful Swallowing, Endoscopy, and Gastrectomy. Dr. Pfau is board certified in American Board Of Internal Medicine. Dr. Pfau is currently accepting new patients.

    Experienced in Collagenous Colitis

    Dr. Sumodh C. Kalathil
    Gastroenterology
    Experienced in Collagenous Colitis

    Dr. Sumodh C. Kalathil
    Gastroenterology
    Referral may be required

    Digestive Health Associates

    655 Sierra Rose Dr, 
    Reno, NV 
     (4.0 miles away)
    775-829-7600
    Languages Spoken:
    English, Malayalam, Spanish, Tamil
    See accepted insurances
    Accepting New Patients
    Offers Telehealth

    Sumodh Kalathil is a Gastroenterologist practicing medicine in Reno, Nevada. Dr. Kalathil is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 21 other conditions, according to our data. His clinical expertise encompasses Hepatitis, Jaundice, Visceromegaly, Endoscopy, and Gastrectomy. Dr. Kalathil is board certified in American Board Of Internal Medicine. Dr. Kalathil is currently accepting new patients.

    Experienced in Collagenous Colitis

    Dr. Amber L. Hayes
    Family Medicine
    Experienced in Collagenous Colitis

    Dr. Amber L. Hayes
    Family Medicine
    Before you request

    Northern Nevada Medical Group LLC

    5265 Vista Blvd Bldg B, 
    Sparks, NV 
     (8.4 miles away)
    775-352-5335
    Languages Spoken:
    English, Spanish
    See accepted insurances
    Accepting New Patients
    Offers Telehealth

    Amber Hayes is a primary care provider, practicing in Family Medicine in Sparks, Nevada. Dr. Hayes is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 12 other conditions, according to our data. Her clinical expertise encompasses Hypothyroidism, High Cholesterol, Maturity Onset Diabetes of the Young, and Type 2 Diabetes (T2D). Dr. Hayes is board certified in American Board Of Family Medicine. Dr. Hayes is currently accepting new patients.

    Experienced in Collagenous Colitis

    Dr. Abhinaya T. Rao
    Internal Medicine
    Experienced in Collagenous Colitis

    Dr. Abhinaya T. Rao
    Internal Medicine

    Northern Nevada Medical Group LLC

    5265 Vista Blvd Bldg B, 
    Sparks, NV 
     (8.4 miles away)
    775-352-5335
    Languages Spoken:
    English, Hindi, Kannada
    See accepted insurances
    Accepting New Patients
    Offers Telehealth

    Abhinaya Rao is a primary care provider, practicing in Internal Medicine in Sparks, Nevada. Dr. Rao is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 9 other conditions, according to our data. Her clinical expertise encompasses High Cholesterol, Hypothyroidism, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Rao is board certified in American Board Of Internal Medicine. Dr. Rao is currently accepting new patients.

    Experienced in Collagenous Colitis

    Dr. Kevin A. Brown
    Internal Medicine
    Experienced in Collagenous Colitis

    Dr. Kevin A. Brown
    Internal Medicine

    Office

    150 Country Estates Cir Ste 102, 
    Reno, NV 
     (10.5 miles away)
    775-229-8684
    Languages Spoken:
    English
    See accepted insurances
    Accepting New Patients

    Kevin Brown is a primary care provider, practicing in Internal Medicine in Reno, Nevada. Dr. Brown is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His clinical expertise encompasses Collagenous Colitis, Colitis, and Hiccups. Dr. Brown is currently accepting new patients.

    Experienced in Collagenous Colitis
    Experienced in Collagenous Colitis

    Renown Medical Group-North Hills

    1075 N Hills Blvd Ste 180, 
    Reno, NV 
     (12.6 miles away)
    775-982-5000
    Languages Spoken:
    English, Spanish
    See accepted insurances
    Accepting New Patients

    Catherine Pinkston is a primary care provider, practicing in Family Medicine in Reno, Nevada. Dr. Pinkston is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. Her clinical expertise encompasses Osteomyelitis in Children, Type 2 Diabetes (T2D), Glucocorticoid-Remediable Aldosteronism, and Hypertension. Dr. Pinkston is currently accepting new patients.

    Showing 1-16 of 16

    Last Updated: 09/26/2026

    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 Reno, NV?

    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 Reno, NV?

    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 Reno, NV?

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

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    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 Reno, NV?

    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 Reno, NV?

    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 Reno, NV?

    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 Reno, NV?

    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 Reno, NV?

    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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