The 20 Best Colitis Doctors Near Me in Simi Valley, CA

Find the Top Colitis Experts and Specialists

The 20 Best Colitis Doctors near Simi Valley, CA

Last Updated: 02/22/2026

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MediFind found 91 doctor with experience in Colitis near Simi Valley, CA. Of these, 83 are Experienced and 8 are Advanced.

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91 providers found
    Experienced in Colitis
    Pediatrics | Internal Medicine
    Experienced in Colitis
    Pediatrics | Internal Medicine

    Simi Valley Medical Offices

    3900 Alamo Street, 
    Simi Valley, CA 
     (3.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Kevin Colwell is a primary care provider, practicing in Pediatrics and Internal Medicine in Simi Valley, California. Dr. Colwell is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Parinaud Oculoglandular Syndrome, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Viral Gastroenteritis, and Colitis. Dr. Colwell is currently accepting new patients.

    Advanced in Colitis
    Gastroenterology | Internal Medicine
    Advanced in Colitis
    Gastroenterology | Internal Medicine

    Moe Amadpour, Md. Inc

    1159 Roadrunner Way, 
    Simi Valley, CA 
     (1.0 miles away)
    Experience:
    33+ years
    Languages Spoken:
    English
    Offers Telehealth

    Moe Amadpour is an Internal Medicine specialist and a Gastroenterologist in Simi Valley, California. Dr. Amadpour has been practicing medicine for over 33 years and is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Esophagitis, Acute Pancreatitis, Diverticular Disease, Gastrectomy, and Colonoscopy.

    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    Gastroenterology & Hepatology Specialists Inc.

    2876 Sycamore Dr Ste 203, 
    Simi Valley, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Mayur Trivedi is a Gastroenterologist in Simi Valley, California. Dr. Trivedi is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Hemorrhoids, Gastrointestinal Bleeding, Gastroesophageal Reflux Disease (GERD), Gastrectomy, and Colonoscopy.

    Learn about our expert tiers
    Experienced in Colitis
    Experienced in Colitis

    Simi Workplace Multi-Specialty Clinic Inc

    2755 Alamo St Ste 100, 
    Simi Valley, CA 
     (0.8 miles away)
    Languages Spoken:
    English

    Harry Drummond is a primary care provider, practicing in Geriatrics in Simi Valley, California. Dr. Drummond is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Obesity in Children, Food Allergy, Cellulitis, and Peptic Ulcer.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Alta California Medical Group Inc.

    2755 Alamo St Ste 201, 
    Simi Valley, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Richard Shaw is a primary care provider, practicing in Family Medicine in Simi Valley, California. Dr. Shaw is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Alcoholic Neuropathy, Type 2 Diabetes (T2D), Osteomyelitis in Children, Osteotomy, and Thrombectomy.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Brooks Tashman Medical Corp.

    2950 Sycamore Dr Ste 200, 
    Simi Valley, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jonathan Kurohara is a primary care provider, practicing in Family Medicine in Simi Valley, California. Dr. Kurohara is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Breast Cancer, High Cholesterol, Familial Hypertension, and Hypertension.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Office

    2755 Alamo St Ste 101, 
    Simi Valley, CA 
     (0.8 miles away)
    Languages Spoken:
    English

    William Lee is a primary care provider, practicing in Internal Medicine in Simi Valley, California. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Type 2 Diabetes (T2D), Osteomyelitis in Children, Familial Hypertension, and Hypertension.

    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    Simi Workplace Multi-Specialty Clinic Inc

    2755 Alamo St Ste 100, 
    Simi Valley, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Ronald Omino is a Gastroenterologist in Simi Valley, California. Dr. Omino is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Hemorrhoids, Diarrhea, Trichohepatoenteric Syndrome, and Familial Adenomatous Polyposis.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine
    2655 1st Street, Suite 325, 
    Simi Valley, CA 
     (0.8 miles away)
    Languages Spoken:
    English

    Janet Li is a primary care provider, practicing in Family Medicine in Simi Valley, California. Dr. Li is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Sitosterolemia, High Cholesterol, Chronic Pain, and Cirrhosis.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Arroyo Oaks Medical Associates, Inc

    2230 Lynn Rd Ste 200, 
    Thousand Oaks, CA 
     (7.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Dina Ohevshalom is a primary care provider, practicing in Internal Medicine in Thousand Oaks, California. Dr. Ohevshalom is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Juvenile Primary Osteoporosis, Melorheostosis, Melorheostosis with Osteopoikilosis, Endoscopy, and Hip Replacement. Dr. Ohevshalom is currently accepting new patients.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Arroyo Oaks Medical Associates, Inc

    2230 Lynn Rd Ste 200, 
    Thousand Oaks, CA 
     (7.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Russell Hines is a primary care provider, practicing in Internal Medicine in Thousand Oaks, California. Dr. Hines is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, Colonoscopy, and Endoscopy. Dr. Hines is currently accepting new patients.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Arroyo Oaks Medical Associates, Inc

    2230 Lynn Rd Ste 200, 
    Thousand Oaks, CA 
     (7.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Sonia Monga is a primary care provider, practicing in Internal Medicine in Thousand Oaks, California. Dr. Monga is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are High Cholesterol, Hypertension, Glucocorticoid-Remediable Aldosteronism, Hip Replacement, and Endoscopy. Dr. Monga is currently accepting new patients.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Arroyo Oaks Medical Associates, Inc

    2230 Lynn Rd Ste 200, 
    Thousand Oaks, CA 
     (7.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Amit Monga is a primary care provider, practicing in Internal Medicine in Thousand Oaks, California. Dr. Monga is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Hypertension, Endoscopy, and Pacemaker Implantation. Dr. Monga is currently accepting new patients.

    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology
    7320 Woodlake Avenue, Suite 310, 
    West Hills, CA 
     (9.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Jonathan Matthew is a Gastroenterologist in West Hills, California. Dr. Matthew is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Diarrhea, Trichohepatoenteric Syndrome, Endoscopy, and Colonoscopy. Dr. Matthew is currently accepting new patients.

    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology
    7320 Woodlake Avenue, Suite 310, 
    West Hills, CA 
     (9.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Niloufar Guiv is a Gastroenterologist in West Hills, California. Dr. Guiv is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Heartburn, Diverticular Disease, Familial Adenomatous Polyposis, and Gastric Dysmotility. Dr. Guiv is currently accepting new patients.

    Karen L. Simon
    Advanced in Colitis
    Gastroenterology
    Advanced in Colitis
    Gastroenterology

    Ventura County Gastroenterology Group

    4005 Mission Oaks Blvd, Ste A, 
    Camarillo, CA 
     (13.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Dr. Karen Simon received her B.A. from Stanford University in 1996. She then attended Northwestern University for medical school. She completed her residency at Cedars-Sinai Medical Center in 2004 and her fellowship at UCLA and Cedars in 2008.Dr. Simon has proudly been serving patients in Ventura County since 2008 and is very involved in field research. Dr. Simon is also a speaker for Exact Sciences on behalf of Cologuard and is actively associated in research studies. She is a part of the Takeda Chloride Channel Council and a speaker for Amitiza, as well.She enjoys educating the doctors and the community as a lecturer on topics such as colorectal cancer screening at St. John's Hospital, where she is also a part of the Ethics Committee.Dr. Simon aims specifically to work with patients to discover the problem and develop a treatment strategy. She has a particular interest in Celiac Disease, Inflammatory Bowel Disease (IBD), and a passion for improving colorectal cancer detection.She is dedicated to developing a relationship with patients by utilizing education and mutual information sharing. Dr. Simon is rated as an Advanced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Painful Swallowing, Endoscopy, and Colonoscopy.

    Advanced in Colitis
    Gastroenterology
    Advanced in Colitis
    Gastroenterology

    West Hills Primary & Specialty Care

    7345 Medical Center Dr Ste 420, 
    West Hills, CA 
     (9.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Mona Rezapour is a Gastroenterologist in West Hills, California. Dr. Rezapour is rated as an Advanced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Ulcerative Colitis, Diverticular Disease, Viral Gastroenteritis, Endoscopy, and Gastrectomy.

    Tigalat Shalita
    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    Tigalat Shalita, DO Private Practice

    7230 Medical Center Dr, Ste 202, 
    West Hills, CA 
     (9.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Patients' understanding of their conditions is the most critical first step in their healing process. We emphasize patient teaching in every aspect of our encounters with our patients. Dr. Shalita is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Acute Kidney Failure, Necrosis, COVID-19, Endoscopy, and Gastrostomy.

    Advanced in Colitis
    Gastroenterology
    Advanced in Colitis
    Gastroenterology
    5800 Santa Rosa Road, Suite 149, 
    Camarillo, CA 
     (12.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Laya Nasrollah is a Gastroenterologist in Camarillo, California. Dr. Nasrollah is rated as an Advanced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Diarrhea, Endoscopy, and Gastrectomy. Dr. Nasrollah is currently accepting new patients.

    Micha S. Rojany
    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    Ventura County Gastroenterology Group

    4005 Mission Oaks Blvd, Ste A, 
    Camarillo, CA 
     (13.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Dr. Micha Rojany was born and raised in Southern California. He received his undergraduate degree from the University of California, Berkeley. He attended USC Medical School and completed his internship and residency at Cedars-Sinai Medical Center in Los Angeles. His fellowship in Gastroenterology was completed at the University of California, Davis.Dr. Rojany has practiced in Ventura County since 2006 and is an active member of the local medical community and hospital staff at St. John's Regional Medical Center in Oxnard, and Pleasant Valley Hospital, in Camarillo. He enjoys practicing as a Gastroenterologist with special interests in inflammatory bowel disease and biliary tract diseases.As a Gastroenterologist, Dr. Rojany enjoys the depth and breadth of his field. He takes pride in providing excellent care while taking care of his patients and meeting their needs as a community specialist in digestive diseases. Dr. Rojany is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Gastrointestinal Bleeding, Angiodysplasia of the Colon, Endoscopy, and Gastrectomy.

    Showing 1-20 of 91

    Last Updated: 02/22/2026

    What is the definition of Colitis?

    Colitis is swelling (inflammation) of the large intestine (colon).

    When should I see a Colitis doctor near Simi Valley, 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 Colitis doctor near Simi Valley, 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 Colitis doctors near Simi Valley, 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 Colitis doctors near Simi Valley, 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 Colitis doctor near Simi Valley, 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 Colitis doctor search results page. 

    Why is it important to get a second opinion from a different 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 Colitis doctor near Simi Valley, 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 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 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 Colitis doctors near Simi Valley, CA?

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

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