The 20 Best Crohn's Disease Doctors Near Me in Fullerton, CA

Find the Top Crohn's Disease Experts and Specialists

The 20 Best Crohn's Disease Doctors near Fullerton, CA

Last Updated: 02/22/2026

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

MediFind found 94 doctor with experience in Crohn's Disease near Fullerton, CA. Of these, 88 are Experienced, 5 are Advanced and 1 are Distinguished.

Location
LocationClose
94 providers found
    Advanced in Crohn's Disease
    Colorectal Surgery
    Advanced in Crohn's Disease
    Colorectal Surgery

    Office

    3855 Health Sciences Dr Ste 2073, 
    La Jolla, CA 
     (2.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sonia Ramamoorthy is a Colorectal Surgeon in La Jolla, California. Dr. Ramamoorthy is rated as an Advanced provider by MediFind in the treatment of Crohn's Disease. Her top areas of expertise are Colorectal Cancer, Anal Cancer, Familial Colorectal Cancer, Ileostomy, and Endoscopy.

    Experienced in Crohn's Disease
    Gastroenterology
    Experienced in Crohn's Disease
    Gastroenterology
    1837 Sunny Crest Drive, 
    Fullerton, CA 
     (2.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Eugene Yoon is a Gastroenterologist in Fullerton, California. Dr. Yoon is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Choledocholithiasis, Angiodysplasia of the Colon, Ascites, Endoscopy, and Gastrostomy. Dr. Yoon is currently accepting new patients.

    Experienced in Crohn's Disease
    Gastroenterology
    Experienced in Crohn's Disease
    Gastroenterology
    1837 Sunny Crest Drive, 
    Fullerton, CA 
     (2.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sajen Mathews is a Gastroenterologist in Fullerton, California. Dr. Mathews is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Gastric Dysmotility, Diverticular Disease, Benign Esophageal Stricture, Endoscopy, and Gastrostomy.

    Learn about our expert tiers
    Experienced in Crohn's Disease
    Gastroenterology
    Experienced in Crohn's Disease
    Gastroenterology
    1837 Sunny Crest Drive, 
    Fullerton, CA 
     (2.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Erika Hoyos is a Gastroenterologist in Fullerton, California. Dr. Hoyos is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. Her top areas of expertise are Hemorrhoids, Intestinal Cancer, Chronic Erosive Gastritis, Endoscopy, and Gastrectomy. Dr. Hoyos is currently accepting new patients.

    Experienced in Crohn's Disease
    Gastroenterology
    Experienced in Crohn's Disease
    Gastroenterology
    1837 Sunny Crest Drive, 
    Fullerton, CA 
     (2.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Patrick Koo is a Gastroenterologist in Fullerton, California. Dr. Koo is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Hemorrhoids, Familial Adenomatous Polyposis, Angiodysplasia of the Colon, Endoscopy, and Gastrectomy. Dr. Koo is currently accepting new patients.

    Experienced in Crohn's Disease
    Gastroenterology
    Experienced in Crohn's Disease
    Gastroenterology
    1837 Sunny Crest Drive, 
    Fullerton, CA 
     (2.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Scott Sainburg is a Gastroenterologist in Fullerton, California. Dr. Sainburg is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Benign Esophageal Stricture, Lower Esophageal Ring, Swallowing Difficulty, Endoscopy, and Gastrectomy. Dr. Sainburg is currently accepting new patients.

    Experienced in Crohn's Disease
    Gastroenterology
    Experienced in Crohn's Disease
    Gastroenterology
    2141 North Harbor Boulevard, Suite 25000, 
    Fullerton, CA 
     (2.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Yee Miao is a Gastroenterologist in Fullerton, California. Dr. Miao is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Jaundice, Hepatitis B, Hepatitis, and Gastroesophageal Reflux Disease (GERD). Dr. Miao is currently accepting new patients.

    Experienced in Crohn's Disease
    Colorectal Surgery
    Experienced in Crohn's Disease
    Colorectal Surgery
    2151 North Harbor Boulevard, Suite 2100, 
    Fullerton, CA 
     (2.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Kevin Kinzinger is a Colorectal Surgeon in Fullerton, California. Dr. Kinzinger is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Familial Colorectal Cancer, Colorectal Cancer, Gallbladder Disease, Hernia Surgery, and Ileostomy. Dr. Kinzinger is currently accepting new patients.

    Brian P. Riff
    Experienced in Crohn's Disease
    Gastroenterology | Internal Medicine
    Experienced in Crohn's Disease
    Gastroenterology | Internal Medicine

    Associated Gastroenterology

    1211 W La Palma Ave, 
    Anaheim, CA 
     (1.7 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Offers Telehealth

    Brian Riff is an Internal Medicine specialist and a Gastroenterologist in Anaheim, California. Dr. Riff has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Campylobacter Infection, Gastrostomy, and Gastrectomy.

    Advanced in Crohn's Disease
    General Surgery
    Advanced in Crohn's Disease
    General Surgery

    UCI Health

    101 The City Dr S, 
    Orange, CA 
     (6.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Skandan Shanmugan is a General Surgeon in Orange, California. Dr. Shanmugan is rated as an Advanced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Familial Colorectal Cancer, Colorectal Cancer, Genital Warts, Hernia Surgery, and Ileostomy.

    Advanced in Crohn's Disease
    General Surgery
    Advanced in Crohn's Disease
    General Surgery

    UCI Health

    101 The City Dr S, 
    Orange, CA 
     (6.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Steven Mills is a General Surgeon in Orange, California. Dr. Mills is rated as an Advanced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Ogilvie Syndrome, Familial Colorectal Cancer, Colorectal Cancer, Ileostomy, and Endoscopy.

    Distinguished in Crohn's Disease
    Gastroenterology
    Distinguished in Crohn's Disease
    Gastroenterology

    UCI Health H.H. Chao Comprehensive Digestive Disease Center

    101 The City Dr S Bldg 22C, 
    Orange, CA 
     (6.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Nimisha Parekh is a Gastroenterologist in Orange, California. Dr. Parekh is rated as a Distinguished provider by MediFind in the treatment of Crohn's Disease. Her top areas of expertise are Crohn's Disease, Ulcerative Colitis, Viral Gastroenteritis, Endoscopy, and Colonoscopy.

    Experienced in Crohn's Disease
    Gastroenterology
    Experienced in Crohn's Disease
    Gastroenterology

    National Ambulatory Hernia Institute

    1837 Sunny Crest Dr, 
    Fullerton, CA 
     (1.5 miles away)
    Languages Spoken:
    English

    Martin Carr is a Gastroenterologist in Fullerton, California. Dr. Carr is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Neuroendocrine Tumor, Gas Bloat Syndrome, Visceromegaly, and Enlarged Liver.

    Experienced in Crohn's Disease
    Gastroenterology | Internal Medicine
    Experienced in Crohn's Disease
    Gastroenterology | Internal Medicine

    Associated Gastroenterology

    1211 W La Palma Ave, 
    Anaheim, CA 
     (1.7 miles away)
    Experience:
    55+ years
    Languages Spoken:
    English
    Offers Telehealth

    Dennis Riff is an Internal Medicine specialist and a Gastroenterologist in Anaheim, California. Dr. Riff has been practicing medicine for over 55 years and is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Helicobacter Pylori Infection, Campylobacter Infection, Gastroesophageal Reflux Disease (GERD), Gastrostomy, and Gastrectomy.

    Experienced in Crohn's Disease
    Gastroenterology
    Experienced in Crohn's Disease
    Gastroenterology

    Associated Gastroenterology Medical Group

    1211 W La Palma Ave Ste 306, 
    Anaheim, CA 
     (1.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Kavita Singh is a Gastroenterologist in Anaheim, California. Dr. Singh is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. Her top areas of expertise are Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, Endoscopy, and Colonoscopy.

    Experienced in Crohn's Disease
    Gastroenterology
    Experienced in Crohn's Disease
    Gastroenterology

    Dr P G Rajan MD Inc

    1711 W Romneya Dr, 
    Anaheim, CA 
     (1.7 miles away)
    Languages Spoken:
    English

    Ashokkumar Amin is a Gastroenterologist in Anaheim, California. Dr. Amin is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Gastrointestinal Bleeding, Swallowing Difficulty, Painful Swallowing, Gastrostomy, and Gastrectomy.

    Experienced in Crohn's Disease
    Internal Medicine
    Experienced in Crohn's Disease
    Internal Medicine
    2141 North Harbor Boulevard, Suite 25000, 
    Fullerton, CA 
     (2.2 miles away)
    Languages Spoken:
    English

    Bradley Borsari is a primary care provider, practicing in Internal Medicine in Fullerton, California. Dr. Borsari is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Autoerythrocyte Sensitivity, Purpura, Gardner-Diamond Syndrome, and Postmenopausal Osteoporosis.

    Experienced in Crohn's Disease
    Internal Medicine
    Experienced in Crohn's Disease
    Internal Medicine

    Kaiser Permanente Anaheim Kraemer Medical Offices - Hematology/Oncology Department

    3430 E La Palma Ave, 
    Anaheim, CA 
     (4.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Nicole Higashiyama is a primary care provider, practicing in Internal Medicine in Anaheim, California. Dr. Higashiyama is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. Her top areas of expertise are Breast Cancer, Childhood Iron Deficiency Anemia, Thalassemia, and Iron Deficiency Anemia. Dr. Higashiyama is currently accepting new patients.

    Experienced in Crohn's Disease
    Gastroenterology
    Experienced in Crohn's Disease
    Gastroenterology

    Kaiser Foundation Hospitals Anaheim

    3460 E La Palma Ave, 
    Anaheim, CA 
     (4.8 miles away)
    Languages Spoken:
    English

    Bijal Surti is a Gastroenterologist in Anaheim, California. Dr. Surti is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. Her top areas of expertise are Hemorrhoids, Irritable Bowel Syndrome (IBS), Esophageal Varices, and Alcoholic Cirrhosis.

    Experienced in Crohn's Disease
    Gastroenterology
    Experienced in Crohn's Disease
    Gastroenterology

    Anaheim Kraemer Medical Offices

    3460 E La Palma Ave, 
    Anaheim, CA 
     (4.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Syeda Husain is a Gastroenterologist in Anaheim, California. Dr. Husain is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. Her top areas of expertise are Visceromegaly, Enlarged Liver, Alcoholic Cirrhosis, and Esophageal Varices. Dr. Husain is currently accepting new patients.

    Showing 1-20 of 94

    Last Updated: 02/22/2026

    What is the definition of Crohn's Disease?

    Crohn’s disease is a chronic inflammatory bowel disease (IBD) that causes the digestive tract to become inflamed and is characterized by severe diarrhea and abdominal pain. The areas of the digestive tract affected by Crohn’s disease are different depending on the person; however, it most commonly affects the small intestine and colon. Crohn’s disease is progressive and has several subtypes that are categorized by the area of the digestive tract affected. The incidence of Crohn’s disease in the U.S. and the world has been increasing; however, the reasons why are unknown. Crohn’s disease is considered to be an autoimmune disorder caused by the body’s immune system attacking normal cells and develops more frequently in people who are between the ages of 15 and 40 (but can appear earlier), who have a family history of inflammatory bowel disease, who are of Eastern European Jewish (Ashkenazi) descent, or those who smoke.

    When should I see a Crohn's Disease doctor near Fullerton, 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 Crohn's Disease doctor near Fullerton, 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 Crohn's Disease doctors near Fullerton, 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 Crohn's Disease doctors near Fullerton, 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 Crohn's Disease doctor near Fullerton, 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 Crohn's Disease doctor search results page. 

    Why is it important to get a second opinion from a different Crohn's Disease 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 Crohn's Disease doctor near Fullerton, 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 Crohn's Disease 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 Crohn's Disease 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 Crohn's Disease doctors near Fullerton, CA?

    Look for the filter feature on the left side of the Crohn's Disease 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 Crohn's Disease doctor that offers video calls?

    Look for the filter feature on the left-side of the Crohn's Disease 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