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

Find the Top Diarrhea Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 144 doctor with experience in Diarrhea near Simi Valley, CA. Of these, 129 are Experienced, 14 are Advanced and 1 are Distinguished.

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144 providers found
    Experienced in Diarrhea
    Pediatrics | Internal Medicine
    Experienced in Diarrhea
    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 Diarrhea. His clinical expertise encompasses Parinaud Oculoglandular Syndrome, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Viral Gastroenteritis, and Colitis. Dr. Colwell is currently accepting new patients.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    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 practicing medicine in Simi Valley, California. Dr. Trivedi is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Hemorrhoids, Gastrointestinal Bleeding, Gastroesophageal Reflux Disease (GERD), Gastrectomy, and Colonoscopy.

    Experienced in Diarrhea
    Experienced in Diarrhea

    Mojdeh Zafaranchi, MD Private Practice

    23644 Vanowen St, 
    West Hills, CA 
     (9.6 miles away)
    Languages Spoken:
    English, Farsi, Spanish
    Accepting New Patients

    We provide personalized pediatric care for infants, children, and adolescents in an intimate, family-focused practice setting. Dr. Zafaranchi is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Viral Gastroenteritis, Obesity in Children, Herpangina, and Autism Spectrum Disorder. Dr. Zafaranchi is board certified in Pediatrics. Dr. Zafaranchi is currently accepting new patients.

    Learn about our expert tiers
    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology
    7320 Woodlake Avenue, Suite 310, 
    West Hills, CA 
     (9.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Jonathan Matthew is a Gastroenterologist practicing medicine in West Hills, California. Dr. Matthew is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Diarrhea, Trichohepatoenteric Syndrome, Endoscopy, and Colonoscopy. Dr. Matthew is currently accepting new patients.

    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    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 practicing medicine in Simi Valley, California. Dr. Omino is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His clinical expertise encompasses Hemorrhoids, Diarrhea, Trichohepatoenteric Syndrome, and Familial Adenomatous Polyposis.

    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology

    Simi Workplace Multi-Specialty Clinic Inc

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

    Anna Skay is a Gastroenterologist practicing medicine in Simi Valley, California. Dr. Skay is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Hemorrhoids, Familial Adenomatous Polyposis, Gardner Syndrome, Colonoscopy, and Gastrectomy.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    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 Diarrhea. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Alcoholic Neuropathy, Type 2 Diabetes (T2D), Osteomyelitis in Children, Osteotomy, and Thrombectomy.

    Experienced in Diarrhea
    Experienced in Diarrhea

    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 Diarrhea. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Obesity in Children, Food Allergy, Cellulitis, and Peptic Ulcer.

    Experienced in Diarrhea
    Experienced in Diarrhea

    Alta California Medical Group Inc.

    2755 Alamo St Ste 201, 
    Simi Valley, CA 
     (0.8 miles away)
    Experience:
    44+ years
    Languages Spoken:
    English

    Masahiro Kushigemachi is a primary care provider, practicing in Family Medicine in Simi Valley, California. He has been practicing medicine for over 44 years. Dr. Kushigemachi is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Osteomyelitis in Children, Type 2 Diabetes (T2D), Familial Combined Hyperlipidemia, and Xanthoma.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Mojgan Makhsoosi M.D. Inc.

    2750 Sycamore Dr Ste 209, 
    Simi Valley, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Mojgan Makhsoosi is a primary care provider, practicing in Internal Medicine in Simi Valley, California. Dr. Makhsoosi is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Insomnia, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Hypertension.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    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 Diarrhea. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, High Cholesterol, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

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

    Jeffrey Caputo is a primary care provider, practicing in Family Medicine in Simi Valley, California. Dr. Caputo is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His clinical expertise encompasses New Daily Persistent Headache (NDPH), Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

    Experienced in Diarrhea
    Gastroenterology | Internal Medicine
    Experienced in Diarrhea
    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 practicing medicine in Simi Valley, California. He has been practicing medicine for over 33 years. Dr. Amadpour is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 21 other conditions, according to our data. His clinical expertise encompasses Esophagitis, Acute Pancreatitis, Diverticular Disease, Gastrectomy, and Colonoscopy. Dr. Amadpour is board certified in American Board Of Internal Medicine.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Daniel Ghiyam M D Inc.

    2840 E Los Angeles Ave, 
    Simi Valley, CA 
     (2.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Daniel Ghiyam is a primary care provider, practicing in Family Medicine in Simi Valley, California. Dr. Ghiyam is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Methylmalonic Acidemia with Homocystinuria, Homocystinuria, Inborn Amino Acid Metabolism Disorder, and Familial Combined Hyperlipidemia.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Walter Thomas MD A Medical Corp.

    1980 Sequoia Ave, 
    Simi Valley, CA 
     (2.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Munira Husain is a primary care provider, practicing in Family Medicine in Simi Valley, California. Dr. Husain is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 9 other conditions, according to our data. Her clinical expertise encompasses Togaviridae Disease, Tracheitis, Cellulitis, and Conjunctivitis (Pink Eye).

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Simi Valley Mammography

    3900 Alamo St, 
    Simi Valley, CA 
     (3.7 miles away)
    Languages Spoken:
    English

    Niloofar Khatibi is a primary care provider, practicing in Family Medicine in Simi Valley, California. Dr. Khatibi is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Parainfluenza Virus Type 3, Parainfluenza, Trichohepatoenteric Syndrome, and Diarrhea.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Fadel Abdulhai, DO Private Practice

    885 Patriot Dr, F, 
    Moorpark, CA 
     (4.7 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English, Arabic, Spanish

    Fadel Abdulhai is a primary care provider, practicing in Family Medicine in Moorpark, California. He has been practicing medicine for over 17 years. Dr. Abdulhai is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Sitosterolemia, Familial Hypertriglyceridemia, High Cholesterol, and Glucocorticoid-Remediable Aldosteronism. Dr. Abdulhai is board certified in Family Medicine.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    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

    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 Diarrhea. She is also highly rated in 20 other conditions, according to our data. Her clinical expertise encompasses High Cholesterol, Hypertension, Familial Hypertension, Hip Replacement, and Endoscopy. Dr. Monga is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    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 Diarrhea. He is also highly rated in 32 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, Colonoscopy, and Endoscopy. Dr. Hines is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    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 Diarrhea. She is also highly rated in 19 other conditions, according to our data. Her clinical expertise encompasses Juvenile Primary Osteoporosis, Melorheostosis, Melorheostosis with Osteopoikilosis, Endoscopy, and Hip Replacement. Dr. Ohevshalom is currently accepting new patients.

    Showing 1-20 of 144

    Last Updated: 04/28/2026

    What is the definition of Diarrhea?

    Diarrhea is when you pass loose or watery stool.

    When should I see a Diarrhea 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 Diarrhea 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 Diarrhea 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 Diarrhea 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 Diarrhea 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 Diarrhea doctor search results page. 

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

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

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