The 20 Best Ulcerative Colitis Doctors Near Me in tustin, CA

Find the Top Ulcerative Colitis Experts and Specialists

Last Updated: 09/26/2026

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

MediFind found 162 doctor with experience in Ulcerative Colitis near tustin, CA. Of these, 141 are Experienced, 19 are Advanced and 2 are Distinguished.

Location
LocationClose
162 providers found
    Distinguished in Ulcerative Colitis
    Gastroenterology
    Distinguished in Ulcerative Colitis
    Gastroenterology
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
     (5.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Nimisha Parekh is a Gastroenterologist practicing medicine in Orange, California. Dr. Parekh is rated as a Distinguished provider by MediFind in the treatment of Ulcerative Colitis. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Crohn's Disease, Ulcerative Colitis, Viral Gastroenteritis, Endoscopy, and Colonoscopy. Dr. Parekh is board certified in American Board Of Internal Medicine - Gastroenterology.

    Advanced in Ulcerative Colitis
    Internal Medicine
    Advanced in Ulcerative Colitis
    Internal Medicine

    Pacific Shores Medical Group

    16300 Sand Canyon Ave, Ste 207, 
    Irvine, CA 
     (6.3 miles away)
    Languages Spoken:
    English, Armenian, French, Spanish
    Accepting New Patients
    Offers Telehealth

    Nerses Tchekmedyian is a primary care provider, practicing in Internal Medicine in Irvine, California. Dr. Tchekmedyian is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Juvenile Primary Osteoporosis, Postmenopausal Osteoporosis, Osteoporosis, and Ulcerative Colitis. Dr. Tchekmedyian is board certified in Internal Medicine (Sub: Medical Oncology), American Board Internal Medicine, and Internal Medicine. Dr. Tchekmedyian is currently accepting new patients.

    Experienced in Ulcerative Colitis
    Colorectal Surgery
    Experienced in Ulcerative Colitis
    Colorectal Surgery
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
     (5.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Skandan Shanmugan is a Colorectal Surgeon practicing medicine in Orange, California. Dr. Shanmugan is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Colorectal Cancer, Lynch Syndrome, Hernia Surgery, and Ileostomy. Dr. Shanmugan is board certified in American Board Of Surgery - Surgery (General Surgery). Dr. Shanmugan is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Ulcerative Colitis
    Internal Medicine
    Experienced in Ulcerative Colitis
    Internal Medicine

    Optum - Chapman

    845 E Chapman Ave, 
    Orange, CA 
     (3.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Thomas Hryniewicki is a primary care provider, practicing in Internal Medicine in Orange, California. Dr. Hryniewicki is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 43 other conditions, according to our data. His clinical expertise encompasses Autoerythrocyte Sensitivity, Purpura, Gardner-Diamond Syndrome, and Cirrhosis. Dr. Hryniewicki is board certified in American Board Of Internal Medicine. Dr. Hryniewicki is currently accepting new patients.

    Experienced in Ulcerative Colitis
    Family Medicine
    Experienced in Ulcerative Colitis
    Family Medicine
    845 East Chapman Avenue, 
    Orange, CA 
     (3.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Hal Shimazu is a primary care provider, practicing in Family Medicine in Orange, California. Dr. Shimazu is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Cirrhosis, Purpura, and Gardner-Diamond Syndrome. Dr. Shimazu is currently accepting new patients.

    Advanced in Ulcerative Colitis
    Gastroenterology
    Advanced in Ulcerative Colitis
    Gastroenterology
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
     (5.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sunhee Park is a Gastroenterologist practicing medicine in Orange, California. Dr. Park is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. She is also highly rated in 8 other conditions, according to our data. Her clinical expertise encompasses Crohn's Disease, Ulcerative Colitis, Colitis, Endoscopy, and Gastrectomy. Dr. Park is board certified in American Board Of Internal Medicine - Gastroenterology and American Board Of Internal Medicine - Internal Medicine.

    Advanced in Ulcerative Colitis
    Gastroenterology
    Advanced in Ulcerative Colitis
    Gastroenterology
    Referral may be required

    Office

    15000 Kensington Park Dr Ste 270, 
    Tustin, CA 
     (2.2 miles away)
    Languages Spoken:
    English

    Victor Yu is a Gastroenterologist practicing medicine in Tustin, California. Dr. Yu is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 52 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Gas Bloat Syndrome, Gastrectomy, and Colonoscopy.

    Advanced in Ulcerative Colitis
    Gastroenterology
    Advanced in Ulcerative Colitis
    Gastroenterology
    Referral may be required

    Genesis Healthcare Partners PC

    1010 W La Veta Ave, 
    Orange, CA 
     (3.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Hardeep Singh is a Gastroenterologist practicing medicine in Orange, California. Dr. Singh is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 44 other conditions, according to our data. His clinical expertise encompasses Barrett Esophagus, Esophageal Varices, Familial Pancreatic Cancer, Gastrostomy, and Gastrectomy. Dr. Singh is board certified in American Board Of Internal Medicine. Dr. Singh is currently accepting new patients.

    Advanced in Ulcerative Colitis
    Gastroenterology
    Advanced in Ulcerative Colitis
    Gastroenterology
    Referral may be required

    UC Irvine Medical Center

    101 The City Drive South, 
    Orange, CA 
     (5.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Kashyap Trivedi is a Gastroenterologist practicing medicine in Orange, California. Dr. Trivedi is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Hemorrhagic Proctocolitis, Ulcerative Colitis, Gastroesophageal Reflux Disease (GERD), Colonoscopy, and Gastrectomy. Dr. Trivedi is board certified in American Board Of Internal Medicine - Gastroenterology and American Board Of Internal Medicine - Internal Medicine.

    Experienced in Ulcerative Colitis
    Colorectal Surgery | General Surgery
    Experienced in Ulcerative Colitis
    Colorectal Surgery | General Surgery
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
     (5.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Steven Mills is a Colorectal Surgeon and a General Surgeon practicing medicine in Orange, California. Dr. Mills is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Ogilvie Syndrome, Familial Colorectal Cancer, Rectal Prolapse, Appendectomy, and Ileostomy. Dr. Mills is board certified in American Board Of Colon And Rectal Surgery - Colon And Rectal Surgery and American Board Of Surgery - Surgery (General Surgery). Dr. Mills is currently accepting new patients.

    Experienced in Ulcerative Colitis
    Gastroenterology
    Experienced in Ulcerative Colitis
    Gastroenterology
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
     (5.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Mark Salem is a Gastroenterologist practicing medicine in Orange, California. Dr. Salem is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Crohn's Disease, Ulcerative Colitis, Viral Gastroenteritis, Hemorrhagic Proctocolitis, and Endoscopy. Dr. Salem is board certified in American Board Of Internal Medicine - Gastroenterology.

    Experienced in Ulcerative Colitis
    Colorectal Surgery | General Surgery
    Experienced in Ulcerative Colitis
    Colorectal Surgery | General Surgery
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
     (5.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Joseph Carmichael is a Colorectal Surgeon and a General Surgeon practicing medicine in Orange, California. Dr. Carmichael is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Colorectal Cancer, Rectal Prolapse, Appendectomy, and Ileostomy. Dr. Carmichael is board certified in American Board Of Colon And Rectal Surgery - Colon And Rectal Surgery and American Board Of Surgery - Surgery (General Surgery). Dr. Carmichael is currently accepting new patients.

    Experienced in Ulcerative Colitis
    Gastroenterology
    Experienced in Ulcerative Colitis
    Gastroenterology
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
     (5.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Jaehyun Kim is a Gastroenterologist practicing medicine in Orange, California. Dr. Kim is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Trichohepatoenteric Syndrome, Diarrhea, Hemorrhoids, and Gas Bloat Syndrome. Dr. Kim is board certified in American Board Of Internal Medicine - Gastroenterology and American Board Of Internal Medicine - Internal Medicine. Dr. Kim is currently accepting new patients.

    Experienced in Ulcerative Colitis
    Gastroenterology
    Experienced in Ulcerative Colitis
    Gastroenterology
    Referral may be required

    UC Irvine Medical Center

    101 The City Drive South, 
    Orange, CA 
     (5.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    John Lee is a Gastroenterologist practicing medicine in Orange, California. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 45 other conditions, according to our data. His clinical expertise encompasses Jaundice, Cholestasis, Bile Duct Stricture, Endoscopy, and Pancreatectomy. Dr. Lee is board certified in American Board Of Internal Medicine - Gastroenterology.

    Experienced in Ulcerative Colitis
    Colorectal Surgery | General Surgery
    Experienced in Ulcerative Colitis
    Colorectal Surgery | General Surgery
    Referral may be required

    UCI Health Surgery Services

    101 The City Drive South, Building 29, 
    Orange, CA 
     (5.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Michael Stamos is a Colorectal Surgeon and a General Surgeon practicing medicine in Orange, California. Dr. Stamos is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Appendicitis, Colorectal Cancer, Diverticular Disease, Appendectomy, and Endoscopy. Dr. Stamos is currently accepting new patients.

    Experienced in Ulcerative Colitis
    Colorectal Surgery | General Surgery
    Experienced in Ulcerative Colitis
    Colorectal Surgery | General Surgery
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
     (5.0 miles away)
    Languages Spoken:
    English, Spanish
    Offers Telehealth

    Valery Parra is a Colorectal Surgeon and a General Surgeon practicing medicine in Orange, California. Dr. Parra is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. Her clinical expertise encompasses Rectal Prolapse, Familial Colorectal Cancer, Proctitis, Lynch Syndrome, and Bladder Reconstruction. Dr. Parra is board certified in American Board Of Surgery - Surgery (General Surgery).

    Experienced in Ulcerative Colitis
    Gastroenterology
    Experienced in Ulcerative Colitis
    Gastroenterology
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
     (5.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jason Samarasena is a Gastroenterologist practicing medicine in Orange, California. Dr. Samarasena is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 50 other conditions, according to our data. His clinical expertise encompasses Barrett Esophagus, Jaundice, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Colonoscopy. Dr. Samarasena is board certified in American Board Of Internal Medicine - Gastroenterology.

    Experienced in Ulcerative Colitis
    Gastroenterology
    Experienced in Ulcerative Colitis
    Gastroenterology
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
     (5.0 miles away)
    Languages Spoken:
    English

    Anoushka Dua is a Gastroenterologist practicing medicine in Orange, California. Dr. Dua is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. Her clinical expertise encompasses Viral Gastroenteritis, Ulcerative Colitis, Hemorrhagic Proctocolitis, and Crohn's Disease. Dr. Dua is board certified in American Board Of Internal Medicine - Internal Medicine.

    Distinguished in Ulcerative Colitis
    Gastroenterology
    Distinguished in Ulcerative Colitis
    Gastroenterology
    Referral may be required

    Office

    16105 Sand Canyon Ave Ste 230, 
    Irvine, CA 
     (7.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Caroline Hwang is a Gastroenterologist practicing medicine in Irvine, California. Dr. Hwang is rated as a Distinguished provider by MediFind in the treatment of Ulcerative Colitis. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Crohn's Disease, Ulcerative Colitis, Pancreatic Cancer, Gastrectomy, and Colonoscopy. Dr. Hwang is currently accepting new patients.

    Experienced in Ulcerative Colitis
    Internal Medicine
    Experienced in Ulcerative Colitis
    Internal Medicine

    Won K Yu MD

    17400 Irvine Blvd, 
    Tustin, CA 
     (0.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Won Yu is a primary care provider, practicing in Internal Medicine in Tustin, California. Dr. Yu is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Indigestion, Pancreatic Pseudocyst, Gastric Dysmotility, Gastrostomy, and Endoscopy. Dr. Yu is board certified in American Board Of Internal Medicine. Dr. Yu is currently accepting new patients.

    Showing 1-20 of 162

    Last Updated: 09/26/2026

    What is the definition of Ulcerative Colitis?

    Ulcerative colitis (UC) is a chronic inflammatory bowel disease (IBD) characterized by the development of ulcers in the lining of the digestive tract, which most often affect the colon and rectum. While ulcerative colitis can occur at any age, it most frequently appears between the ages of 15 and 30, or after the age of 60. There are several types of ulcerative colitis that are categorized by the area of the digestive tract affected by the disease, such as ulcerative proctitis (inflammation of area closest to the rectum), proctosigmoiditis (inflammation of the sigmoid colon and rectum), left-sided colitis (inflammation of descending colon, sigmoid colon, and rectum), pancolitis (inflammation of the entire colon), and a rare form of ulcerative colitis known as acute severe ulcerative colitis (severe inflammation of entire colon). Ulcerative colitis can also affect other areas of the body, causing inflammation of the skin, eyes, liver, joints, and back.

    When should I see an Ulcerative Colitis doctor near tustin, 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 an Ulcerative Colitis doctor near tustin, 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 Ulcerative Colitis doctors near tustin, 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 Ulcerative Colitis doctors near tustin, 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 an Ulcerative Colitis doctor near tustin, 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 Ulcerative Colitis doctor search results page. 

    Why is it important to get a second opinion from a different Ulcerative 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 an Ulcerative Colitis doctor near tustin, 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 Ulcerative 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 Ulcerative 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 Ulcerative Colitis doctors near tustin, CA?

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

    Look for the filter feature on the left-side of the Ulcerative 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.