The 20 Best Diarrhea Doctors Near Me in ladera ranch, CA

Find the Top Diarrhea Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 156 doctor with experience in Diarrhea near ladera ranch, CA. Of these, 140 are Experienced, 12 are Advanced and 4 are Distinguished.

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156 providers found
    Experienced in Diarrhea
    Experienced in Diarrhea

    Optum - Ladera Ranch

    800 Corporate Dr, 
    Ladera Ranch, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Mitchell Wainwright is a primary care provider, practicing in Family Medicine in Ladera Ranch, California. Dr. Wainwright is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Papular Urticaria, Multisystem Inflammatory Syndrome in Children (MIS-C), COVID-19, and Empyema. Dr. Wainwright is currently accepting new patients.

    Experienced in Diarrhea
    Experienced in Diarrhea
    Referral may be required

    Celebrating Life Community Health Center

    27800 Medical Center Road, Suite 110 - Pediatric, 
    Mission Viejo, CA 
     (1.5 miles away)
    Languages Spoken:
    English

    Niazi Sidhom is a Pediatrics provider practicing medicine in Mission Viejo, California. Dr. Sidhom 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 Obesity in Children, Anemia, Diarrhea, and Delayed Growth.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology
    Referral required
    27700 Medical Center Road, 
    Mission Viejo, CA 
     (1.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Tarek Hassanein is a Gastroenterologist practicing medicine in Mission Viejo, California. Dr. Hassanein is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 52 other conditions, according to our data. His clinical expertise encompasses Hepatitis C, Hepatitis, Non-Alcoholic Fatty Liver Disease, Endoscopy, and Liver Transplant. Dr. Hassanein is board certified in American Board Of Internal Medicine. Dr. Hassanein is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Optum - Mission Viejo

    26991 Crown Valley Pkwy, 
    Mission Viejo, CA 
     (1.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Stefanie Fightlin is a primary care provider, practicing in Family Medicine in Mission Viejo, California. Dr. Fightlin is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Insomnia, Vertigo, High Cholesterol, and Cirrhosis. Dr. Fightlin is board certified in American Board Of Family Medicine. Dr. Fightlin is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Optum - Mission Viejo

    26991 Crown Valley Pkwy, 
    Mission Viejo, CA 
     (1.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Ronald Richmond is a primary care provider, practicing in Family Medicine in Mission Viejo, California. Dr. Richmond 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 High Cholesterol, Sciatica, Insomnia, and Hypertension. Dr. Richmond is board certified in American Board Of Family Medicine. Dr. Richmond is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Office

    Laguna Niguel, CA 
     (3.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Bassam Bilal is a primary care provider, practicing in Internal Medicine in Laguna Niguel, California. Dr. Bilal is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), High Cholesterol, Osteomyelitis in Children, and Hypertension. Dr. Bilal is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Optum - San Juan Capistrano

    San Juan Capistrano, CA 
     (3.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Lothar Mcmillian is a primary care provider, practicing in Family Medicine in San Juan Capistrano, California. Dr. Mcmillian is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Type 2 Diabetes (T2D), Hypothyroidism, and Hypertension. Dr. Mcmillian is board certified in American Board Of Family Medicine. Dr. Mcmillian is currently accepting new patients.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology
    Referral may be required
    26691 Plaza, Suite 150, 
    Mission Viejo, CA 
     (1.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Shahram Javaheri is a Gastroenterologist practicing medicine in Mission Viejo, California. Dr. Javaheri is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Gardner Syndrome, Turcot Syndrome, Endoscopy, and Gastrectomy. Dr. Javaheri is board certified in American Board Of Internal Medicine, Internal Medicine (Sub: Gastroenterology), and Internal Medicine. Dr. Javaheri is currently accepting new patients.

    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology
    Referral may be required
    25401 Cabot Road, Suite 101, 
    Laguna Hills, CA 
     (3.5 miles away)
    Languages Spoken:
    English, Korean
    Accepting New Patients

    Andrew Ko is a Gastroenterologist practicing medicine in Laguna Hills, California. Dr. Ko 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 Chronic Erosive Gastritis, Hiatal Hernia, Congenital Diaphragmatic Hernia, Microvascular Decompression, and Deep Brain Stimulation. Dr. Ko is board certified in American Board Of Internal Medicine - Gastroenterology and American Board Of Internal Medicine - Internal Medicine. Dr. Ko is currently accepting new patients.

    Advanced in Diarrhea
    Internal Medicine
    Advanced in Diarrhea
    Internal Medicine

    Saddleback Medical Group

    Laguna Hills, CA 
     (4.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Benjamin Weinberg is a primary care provider, practicing in Internal Medicine in Laguna Hills, California. Dr. Weinberg is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Gastrointestinal Bleeding, Painful Swallowing, Colonoscopy, and Gastrostomy. Dr. Weinberg is board certified in American Board Of Internal Medicine. Dr. Weinberg is currently accepting new patients.

    Advanced in Diarrhea
    Advanced in Diarrhea
    Referral may be required
    Laguna Hills, CA 
     (4.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Mary Wilkinson is a Pediatrics provider practicing medicine in Laguna Hills, California. Dr. Wilkinson is rated as an Advanced 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 Obesity in Children, Croup, Asthma in Children, and Chronic Rhinosinusitis with Nasal Polyps (CRSwNP). Dr. Wilkinson is currently accepting new patients.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology
    Referral may be required
    27799 Medical Center Road, Suite 320, 
    Mission Viejo, CA 
     (4.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Jack Feng is a Gastroenterologist practicing medicine in Mission Viejo, California. Dr. Feng is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Diverticular Disease, Gardner Syndrome, and Turcot Syndrome. Dr. Feng is currently accepting new patients.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology
    Referral may be required
    27799 Medical Center Road, Suite 320, 
    Mission Viejo, CA 
     (4.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Edward Block is a Gastroenterologist practicing medicine in Mission Viejo, California. Dr. Block is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Gastroesophageal Reflux Disease (GERD), Diverticular Disease, and Chronic Erosive Gastritis. Dr. Block is currently accepting new patients.

    Distinguished in Diarrhea
    Family Medicine
    Distinguished in Diarrhea
    Family Medicine

    Newport Walk In Medical Group Inc.

    2075 San Joaquin Hills Rd, 
    Newport Beach, CA 
     (13.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Nathan Kiskila is a primary care provider, practicing in Family Medicine in Newport Beach, California. Dr. Kiskila is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. He is also highly rated in 99 other conditions, according to our data. His clinical expertise encompasses Tracheitis, Lymphangitis, Urinary Tract Infection in Children, and Urinary Tract Infection (UTI). Dr. Kiskila is currently accepting new patients.

    Experienced in Diarrhea
    Experienced in Diarrhea
    Referral may be required
    777 Corporate Drive, Suite 250, 
    Ladera Ranch, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Margaret Blerk is a Pediatrics provider practicing medicine in Ladera Ranch, California. Dr. Blerk is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Obesity in Children, Asthma in Children, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), and Developmental Dysphasia Familial. Dr. Blerk is currently accepting new patients.

    Experienced in Diarrhea
    Experienced in Diarrhea
    Referral may be required
    777 Corporate Drive, Suite 250, 
    Ladera Ranch, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Jenna Timboe is a Pediatrics provider practicing medicine in Ladera Ranch, California. Dr. Timboe is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Obesity in Children, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Croup, and Viral Gastroenteritis. Dr. Timboe is currently accepting new patients.

    Experienced in Diarrhea
    Experienced in Diarrhea
    Referral may be required
    777 Corporate Drive, Suite 250, 
    Ladera Ranch, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Sarah Herrera is a Pediatrics provider practicing medicine in Ladera Ranch, California. Dr. Herrera is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Obesity in Children, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Croup, and Asthma in Children. Dr. Herrera is currently accepting new patients.

    Experienced in Diarrhea
    Pediatrics | Neurology
    Experienced in Diarrhea
    Pediatrics | Neurology
    Referral may be required
    333 Corporate Drive, Suite 110, 
    Ladera Ranch, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Ying Peng is a Pediatrics specialist and a Neurologist practicing medicine in Ladera Ranch, California. Dr. Peng is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 31 other conditions, according to our data. Her clinical expertise encompasses Memory Loss, Seizures, Generalized Tonic-Clonic Seizure, Thrombectomy, and Aortic Valve Replacement. Dr. Peng is board certified in American Board Of Psychiatry And Neurology. Dr. Peng is currently accepting new patients.

    Experienced in Diarrhea
    Pediatrics
    Experienced in Diarrhea
    Pediatrics
    Referral may be required

    Coastal Kids A Professional Medical Corp

    333 Corporate Dr, 
    Ladera Ranch, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Amy Cox is a Pediatrics provider practicing medicine in Ladera Ranch, California. Dr. Cox 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 Obesity in Children, Developmental Dysphasia Familial, Herpangina, and Stork Bite. Dr. Cox is board certified in American Board Of Pediatrics. Dr. Cox is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Sun Medical Group Inc

    27522 Antonio Pkwy Ste P3, 
    Ladera Ranch, CA 
     (1.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Miranda De Luna is a primary care provider, practicing in Family Medicine in Ladera Ranch, California. Dr. De Luna is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 14 other conditions, according to our data. Her clinical expertise encompasses Cellulitis, Parinaud Oculoglandular Syndrome, Flu, and H1N1 Influenza. Dr. De Luna is currently accepting new patients.

    Showing 1-20 of 156

    Last Updated: 09/26/2026

    What is the definition of Diarrhea?

    Diarrhea is when you pass loose or watery stool.

    When should I see a Diarrhea doctor near ladera ranch, 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 ladera ranch, 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 ladera ranch, 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 ladera ranch, 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 ladera ranch, 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 ladera ranch, 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 ladera ranch, 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 

    Read more about our Content Policy. 

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