The 20 Best Collagenous Colitis Doctors Near Me in Sunnyvale, TX

Find the Top Collagenous Colitis Experts and Specialists

Last Updated: 02/22/2026

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MediFind found 45 doctor with experience in Collagenous Colitis near Sunnyvale, TX. Of these, 34 are Experienced, 10 are Advanced and 1 are Distinguished.

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45 providers found
    Fayez G. Seif
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Texas Digestive Disease Consultants

    480 US Hwy 80, Ste 200, 
    Sunnyvale, TX 
     (0.8 miles away)
    Languages Spoken:
    English

    Fayez Seif is an Internal Medicine specialist and a Gastroenterologist in Sunnyvale, Texas. Dr. Seif is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Indigestion, Portal Hypertension, Childhood Volvulus, Endoscopy, and Gastrectomy.

    Paul H. Wright
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Texas Digestive Disease Consultants - Sunnyvale

    480 US Hwy 80, Ste 200, 
    Sunnyvale, TX 
     (0.8 miles away)
    Languages Spoken:
    English

    Paul Wright is an Internal Medicine specialist and a Gastroenterologist in Sunnyvale, Texas. Dr. Wright is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Ascites, Diverticular Disease, Gastrectomy, and Gastrostomy.

    German A. Oliver
    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology

    Texas Digestive Disease Consultants - Sunnyvale

    480 US Hwy 80, Ste 200, 
    Sunnyvale, TX 
     (0.8 miles away)
    Languages Spoken:
    English, Spanish

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

    Learn about our expert tiers
    Ramalinga Kedika
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Texas Digestive Disease Consultants

    480 US Hwy 80, Ste 200, 
    Sunnyvale, TX 
     (0.8 miles away)
    Languages Spoken:
    English, Spanish

    Ramalinga Kedika is an Internal Medicine specialist and a Gastroenterologist in Sunnyvale, Texas. Dr. Kedika is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Gastric Dysmotility, Colonic Malakoplakia, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Colonoscopy.

    Alan G. Kaye
    Experienced in Collagenous Colitis
    Internal Medicine
    Experienced in Collagenous Colitis
    Internal Medicine

    Texas Health Internal Medicine

    8440 Walnut Hill Lane, Suite 800, 
    Dallas, TX 
     (12.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Alan Kaye is a primary care provider, practicing in Internal Medicine in Dallas, Texas. Dr. Kaye is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Sitosterolemia, High Cholesterol, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Texas Digestive Disease Consultants - Sunnyvale

    480 US Hwy 80, Ste 200, 
    Sunnyvale, TX 
     (0.8 miles away)
    Languages Spoken:
    English

    Charles Mcdaniel is an Internal Medicine specialist and a Gastroenterologist in Sunnyvale, Texas. Dr. Mcdaniel 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 Colonic Malakoplakia.

    Michael J. Nunez
    Distinguished in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Distinguished in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Texas Digestive Disease Consultants - Dallas

    8230 Walnut Hill Ln, Ste 610, 
    Dallas, TX 
     (13.0 miles away)
    Languages Spoken:
    English

    Michael Nunez is an Internal Medicine specialist and a Gastroenterologist in Dallas, Texas. Dr. Nunez is rated as a Distinguished provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Diverticular Disease, Colonic Malakoplakia, Collagenous Colitis, Gastrectomy, and Endoscopy.

    Mark R. Miller
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Texas Digestive Disease Consultants

    3144 Horizon Rd, Ste 210, 
    Rockwall, TX 
     (8.2 miles away)
    Languages Spoken:
    English

    Mark Miller is an Internal Medicine specialist and a Gastroenterologist in Rockwall, Texas. Dr. Miller is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Swallowing Difficulty, Painful Swallowing, Endoscopy, and Colonoscopy.

    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Digestive Health Associates Of Texas - Rockwall

    3144 Horizon Rd, Ste 210, 
    Rockwall, TX 
     (8.2 miles away)
    Languages Spoken:
    English

    Ruben Sandoval is an Internal Medicine specialist and a Gastroenterologist in Rockwall, Texas. Dr. Sandoval 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, Gastrectomy, and Endoscopy.

    Experienced in Collagenous Colitis
    Internal Medicine | Gastroenterology
    Experienced in Collagenous Colitis
    Internal Medicine | Gastroenterology

    Texas Digestive Disease Consultants

    3144 Horizon Rd, Ste 210, 
    Rockwall, TX 
     (8.2 miles away)
    Languages Spoken:
    English

    Paul Paradiso is an Internal Medicine specialist and a Gastroenterologist in Rockwall, Texas. Dr. Paradiso is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Colitis, Indigestion, Colonic Malakoplakia, Gastrectomy, and Colonoscopy.

    Esmail M. Elwazir
    Advanced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Advanced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Texas Digestive Disease Consultants

    3417 Gaston Avenue, Suite 800, 
    Dallas, TX 
     (12.8 miles away)
    Languages Spoken:
    English, German, Italian, Spanish

    Esmail Elwazir is an Internal Medicine specialist and a Gastroenterologist in Dallas, Texas. Dr. Elwazir is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Diverticular Disease, Gastroesophageal Reflux Disease (GERD), and Colonic Malakoplakia.

    Elizabeth A. Odstrcil
    Advanced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Advanced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Texas Digestive Disease Consultants

    3417 Gaston Ave, Ste 790, 
    Dallas, TX 
     (12.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Elizabeth Odstrcil is an Internal Medicine specialist and a Gastroenterologist in Dallas, Texas. Dr. Odstrcil is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. Her top areas of expertise are Angiodysplasia of the Colon, Gastroesophageal Reflux Disease (GERD), Watermelon Stomach, Endoscopy, and Gastrectomy.

    Abrar Ahmed
    Advanced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Advanced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Texas Digestive Disease Consultants - Dallas

    8230 Walnut Hill Ln, Ste 610, 
    Dallas, TX 
     (13.0 miles away)
    Languages Spoken:
    English

    Abrar Ahmed is an Internal Medicine specialist and a Gastroenterologist in Dallas, Texas. Dr. Ahmed is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Heartburn, Colitis, Gas Bloat Syndrome, Gastrectomy, and Endoscopy.

    Rajeev Jain
    Advanced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Advanced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Texas Digestive Disease Consultants - Dallas

    8230 Walnut Hill Ln, Ste 610, 
    Dallas, TX 
     (13.0 miles away)
    Languages Spoken:
    English, Hindi

    Rajeev Jain is an Internal Medicine specialist and a Gastroenterologist in Dallas, Texas. Dr. Jain is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Heartburn, Colonic Malakoplakia, Familial Adenomatous Polyposis, Colonoscopy, and Gastrectomy.

    Sami N. Arslanlar
    Advanced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Advanced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Texas Digestive Disease Consultants

    8220 Walnut Hill Ln, Ste 710, LB 101, 
    Dallas, TX 
     (13.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sami Arslanlar is an Internal Medicine specialist and a Gastroenterologist in Dallas, Texas. Dr. Arslanlar is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Heartburn, Childhood Volvulus, Portal Hypertension, Gastrectomy, and Endoscopy.

    James D. Hakert
    Advanced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Advanced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Digestive Health Associates Of Texas - Dallas

    8220 Walnut Hill Ln, Ste 710, 
    Dallas, TX 
     (13.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    James Hakert is an Internal Medicine specialist and a Gastroenterologist in Dallas, Texas. Dr. Hakert is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Gas Bloat Syndrome, Portal Hypertension, Gastrectomy, and Endoscopy.

    Advanced in Collagenous Colitis
    Gastroenterology
    Advanced in Collagenous Colitis
    Gastroenterology

    Office

    3144 Horizon Rd Ste 210, 
    Rockwall, TX 
     (8.6 miles away)
    Experience:
    47+ years
    Languages Spoken:
    English

    Harry Sarles is a Gastroenterologist in Rockwall, Texas. Dr. Sarles has been practicing medicine for over 47 years and is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Portal Hypertension, Childhood Volvulus, Ulcerative Colitis, and Gastrectomy.

    Jason Martin
    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology

    Texas Digestive Disease Consultants

    3600 Gaston Avenue, Suite 809, 
    Dallas, TX 
     (12.7 miles away)
    Languages Spoken:
    English

    Jason Martin is a Gastroenterologist in Dallas, Texas. Dr. Martin is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Turcot Syndrome, Gardner Syndrome, Familial Adenomatous Polyposis, Gastrectomy, and Endoscopy.

    Christopher J. Vesy
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Texas Digestive Disease Consultants

    3600 Gaston Avenue, Suite 809, 
    Dallas, TX 
     (12.7 miles away)
    Languages Spoken:
    English, Spanish

    Dr. Vesy received his doctor of medicine degree in 1993 from The Ohio State University in Columbus, Ohio, graduating cum laude with Honors in Internal Medicine, Emergency Room, Medical Intensive Care Unit, General Medicine, Family Practice, Obstetrics and Gynecology, and Pediatrics. He received a post-sophomore fellowship in Pathology where he performed molecular research in celiac disease. He was elected to Alpha Omega Alpha, the only national honor medical society. Dr. Vesy continued his medical education by performing his internship and residency in internal medicine at Duke University in Durham, North Carolina. He then moved to Dallas and completed a Gastroenterology fellowship at the University of Texas Southwestern Medical Center where he spent two years in the Division of Infectious Diseases performing research in sepsis. Dr. Vesy is board certified in both Internal Medicine and Gastroenterology. He is a Diplomate of the National Board of Medical Examiners. He performs teaching rounds at Baylor University Medical Center, part of Baylor Scott & White Health, for both Internal Medicine housestaff and Gastroenterology fellows. Dr. Vesy is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Colonic Malakoplakia, Familial Adenomatous Polyposis, and Gardner Syndrome.

    Sarita Gayle
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine
    Experienced in Collagenous Colitis
    Gastroenterology | Internal Medicine

    Texas Digestive Disease Consultants

    3417 Gaston Ave, Ste 790, 
    Dallas, TX 
     (12.8 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English
    Offers Telehealth

    Sarita Gayle is an Internal Medicine specialist and a Gastroenterologist in Dallas, Texas. Dr. Gayle has been practicing medicine for over 18 years and is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. Her top areas of expertise are Heartburn, Diarrhea, Trichohepatoenteric Syndrome, Gastrectomy, and Endoscopy.

    Showing 1-20 of 45

    Last Updated: 02/22/2026

    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 Sunnyvale, TX?

    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 Sunnyvale, TX?

    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 Collagenous Colitis doctors near Sunnyvale, TX?

    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 Sunnyvale, TX?

    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 Sunnyvale, TX?

    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 Sunnyvale, TX?

    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 Sunnyvale, TX?

    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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