The 20 Best Collagenous Colitis Doctors Near Me in Oakland, CA

Find the Top Collagenous Colitis Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 16 doctor with experience in Collagenous Colitis near Oakland, CA. Of these, 15 are Experienced and 1 are Advanced.

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16 providers found
    Advanced in Collagenous Colitis
    Gastroenterology
    Advanced in Collagenous Colitis
    Gastroenterology

    Colitis And Crohn's Disease Center

    1701 Divisadero St Ste 120, 
    San Francisco, CA 
     (9.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Kendall Beck is a Gastroenterologist practicing medicine in San Francisco, California. Dr. Beck is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 8 other conditions, according to our data. Her clinical expertise encompasses Ulcerative Colitis, Crohn's Disease, Colitis, Endoscopy, and Colonoscopy.

    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology

    Colitis And Crohn's Disease Center

    1701 Divisadero St., Suite 120, 
    San Francisco, CA 
     (9.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Dr. Sara Lewin is a gastroenterologist who specializes in caring for patients with inflammatory bowel diseases, disorders of the small intestine and general gastroenterology concerns. In addition to evaluating patients in the clinic, she performs procedures to examine the digestive tract. These include upper endoscopy, colonoscopy, capsule endoscopy – in which the patient swallows a tiny camera that transmits images – and double-balloon enteroscopy, in which the doctor can enhance viewing by inflating balloons attached to the endoscope. Lewin's research interests include improving care for hospitalized patients with gastrointestinal illnesses and clinical trials for novel therapeutic agents for. Lewin earned her medical degree at UCSF, where she then completed a residency in internal medicine, followed by fellowships in gastroenterology and inflammatory bowel disease. Dr. Lewin is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Ulcerative Colitis, Crohn's Disease, Colitis, Endoscopy, and Colonoscopy. Dr. Lewin is board certified in American Board Of Internal Medicine, Gastroenterology and American Board Of Internal Medicine, Internal Medicine. Dr. Lewin is currently accepting new patients.

    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology

    Colitis And Crohn's Disease Center

    1701 Divisadero St., Suite 120, 
    San Francisco, CA 
     (9.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Dr. Uma Mahadevan is a gastroenterologist and director of the UCSF Colitis and Crohn's Disease Center. She is an expert on inflammatory bowel disease (IBD), particularly as it relates to pregnancy and fertility, and on managing patients with complex Crohn's disease and ulcerative colitis. In research, Mahadevan is interested in digital health for IBD and developing novel therapies for IBD, and she is involved in trials of new drugs and dietary therapies. Mahadevan earned her medical degree from the SUNY Downstate Health Sciences University College of Medicine, part of the State University of New York system. She completed a residency in internal medicine at the Mount Sinai Health System, a fellowship in gastroenterology at UCSF, and a fellowship in IBD at the Mayo Clinic in Rochester, Minnesota. Dr. Mahadevan is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 8 other conditions, according to our data. Her clinical expertise encompasses Ulcerative Colitis, Viral Gastroenteritis, Crohn's Disease, Ileostomy, and Colonoscopy. Dr. Mahadevan is board certified in American Board Of Internal Med/Gastroenterology, Gastroenterology. Dr. Mahadevan is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology

    Colitis And Crohn's Disease Center

    1701 Divisadero St., Suite 120, 
    San Francisco, CA 
     (9.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Dr. Jonathan Terdiman is a gastroenterologist who serves as co-director of UCSF's inflammatory bowel disease center and colorectal cancer prevention program. His research interests include colorectal cancer prevention, hereditary gastrointestinal cancer and inflammatory bowel disease. Terdiman earned his medical degree at Columbia University's Vagelos College of Physicians and Surgeons. He completed a residency in internal medicine and fellowships in critical care medicine and gastroenterology at UCSF. Terdiman frequently lectures in the community, at the university and for various professional organizations on the subjects he explores in his research. Dr. Terdiman is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Crohn's Disease, Ulcerative Colitis, Viral Gastroenteritis, Endoscopy, and Colonoscopy. Dr. Terdiman is board certified in American Board Of Internal Med/Gastroenterology, Gastroenterology. Dr. Terdiman is currently accepting new patients.

    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology

    Colitis And Crohn's Disease Center

    1701 Divisadero St., Suite 120, 
    San Francisco, CA 
     (9.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Dr. Michael Kattah is a gastroenterologist who cares for patients with inflammatory bowel disease (IBD) and other disorders involving the digestive tract. He performs upper endoscopies and colonoscopies. He is particularly interested in caring for young adults with IBD and works with pediatric gastroenterologists to help these patients transition from pediatric to adult care. Kattah's research focuses on ways to better treat patients with IBD. He studies both Crohn's disease and ulcerative colitis (types of IBD) to investigate why people develop IBD and learn how to choose the best medications for individual patients. His lab uses new technologies to understand how specific genes and cell types drive IBD, with the goal of identifying less toxic, more tailored treatments. Kattah earned his medical degree and doctorate in immunology at Stanford University School of Medicine. He completed a residency in internal medicine at Brigham and Women's Hospital, followed by a fellowship in gastroenterology at UCSF. In his free time, Kattah enjoys surfing. Dr. Kattah is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Ulcerative Colitis, Viral Gastroenteritis, Crohn's Disease, Colonoscopy, and Endoscopy. Dr. Kattah is board certified in American Board Of Internal Med/Gastroenterology, Gastroenterology. Dr. Kattah is currently accepting new patients.

    Experienced in Collagenous Colitis
    Internal Medicine
    Experienced in Collagenous Colitis
    Internal Medicine

    Office

    101 Mission St, 
    San Francisco, CA 
     (6.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Karen Abernathy is a primary care provider, practicing in Internal Medicine in San Francisco, California. Dr. Abernathy is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Hypertension, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Type 2 Diabetes (T2D).

    Experienced in Collagenous Colitis
    Internal Medicine
    Experienced in Collagenous Colitis
    Internal Medicine

    Doctor On Demand Professionals Of California

    1 California St Ste 2300, 
    San Francisco, CA 
     (7.0 miles away)
    Languages Spoken:
    English

    Susan Mayo is a primary care provider, practicing in Internal Medicine in San Francisco, California. Dr. Mayo is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. Her clinical expertise encompasses Empyema, COVID-19, Multisystem Inflammatory Syndrome in Children (MIS-C), and Sinusitis.

    Experienced in Collagenous Colitis
    Internal Medicine
    Experienced in Collagenous Colitis
    Internal Medicine

    Bay Infectious Disease

    1 Country Club Plz, 
    Orinda, CA 
     (7.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Brian Candell is a primary care provider, practicing in Internal Medicine in Orinda, California. Dr. Candell is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. His clinical expertise encompasses High Cholesterol, Swimming Pool Granuloma, Shingles, and Tracheitis.

    Experienced in Collagenous Colitis
    Internal Medicine
    Experienced in Collagenous Colitis
    Internal Medicine

    Pacific Internal Medicine Associates

    2100 Webster St Ste 423, 
    San Francisco, CA 
     (9.2 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Offers Telehealth

    Susan Ripper is an Internal Medicine provider practicing medicine in San Francisco, California. She has been practicing medicine for over 17 years. Dr. Ripper 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 Ulcerative Colitis, Gastroesophageal Reflux Disease (GERD), Trichohepatoenteric Syndrome, Gastrectomy, and Colonoscopy.

    Experienced in Collagenous Colitis
    Internal Medicine
    Experienced in Collagenous Colitis
    Internal Medicine

    Marilyn Kutzscher MD Inc

    2100 Webster St Ste 501, 
    San Francisco, CA 
     (9.2 miles away)
    Languages Spoken:
    English

    Marilyn Kutzscher is a primary care provider, practicing in Internal Medicine in San Francisco, California. Dr. Kutzscher is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Postmenopausal Osteoporosis, Osteoporosis, Perniosis, and Chronic Cough.

    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology

    Gastroenterology At Mount Zion

    1701 Divisadero St Ste 120, 
    San Francisco, CA 
     (9.2 miles away)
    Languages Spoken:
    English

    Daniel Selvig is a Gastroenterologist practicing medicine in San Francisco, California. Dr. Selvig is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Gardner Syndrome, Trichohepatoenteric Syndrome, Endoscopy, and Colonoscopy.

    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology

    UCSF Anticoagulation Clinic

    350 Parnassus Ave Ste 410, 
    San Francisco, CA 
     (10.5 miles away)
    Languages Spoken:
    English

    James Ostroff is a Gastroenterologist practicing medicine in San Francisco, California. Dr. Ostroff is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Childhood Pancreatitis, Chronic Pancreatitis, Bile Duct Stricture, Endoscopy, and Liver Transplant.

    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology

    Advanced Heart Failure At Walnut Creek

    1450 Treat Blvd Ste 200, 
    Walnut Creek, CA 
     (13.4 miles away)
    Languages Spoken:
    English

    Hongha Vu James is a Gastroenterologist practicing medicine in Walnut Creek, California. Dr. Vu James is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 30 other conditions, according to our data. Her clinical expertise encompasses Diverticular Disease, Familial Adenomatous Polyposis, Hemorrhoids, Colonoscopy, and Gastrectomy.

    Experienced in Collagenous Colitis
    Family Medicine
    Experienced in Collagenous Colitis
    Family Medicine

    Walnut Creek Medical Center

    1515 Newell Avenue, 
    Walnut Creek, CA 
     (14.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Farhad Zamani is a primary care provider, practicing in Family Medicine in Walnut Creek, California. Dr. Zamani is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Non-Alcoholic Fatty Liver Disease, Metabolic Syndrome, Abdominal Obesity Metabolic Syndrome, Endoscopy, and Liver Transplant. Dr. Zamani is currently accepting new patients.

    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology

    Office

    1479 Ygnacio Valley Rd, 
    Walnut Creek, CA 
     (14.5 miles away)
    Languages Spoken:
    English

    Shireen Ghorbani is a Gastroenterologist practicing medicine in Walnut Creek, California. Dr. Ghorbani is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 13 other conditions, according to our data. Her clinical expertise encompasses Attenuated Familial Adenomatous Polyposis, Cronkhite-Canada Disease, Juvenile Polyposis Syndrome, Endoscopy, and Gastrectomy.

    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology

    Diablo Digestive Care Inc.

    400 Taylor Blvd Ste 304, 
    Pleasant Hill, CA 
     (14.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Premjit Chahal is a Gastroenterologist practicing medicine in Pleasant Hill, California. Dr. Chahal is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, and Gastric Dysmotility.

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    Last Updated: 04/28/2026

    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 Oakland, 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 Oakland, 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 Collagenous Colitis doctors near Oakland, 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 Oakland, 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 Oakland, 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 Oakland, 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 Oakland, 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 

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