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    Last Updated: 10/30/2025

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    MediFind found 143 doctor with experience in Diarrhea near Rancho Santa Margarita, CA. Of these, 127 are Experienced, 13 are Advanced and 3 are Distinguished.

    Location
    LocationClose
    143 providers found
      Advanced in Diarrhea
      Internal Medicine
      Advanced in Diarrhea
      Internal Medicine

      Marque Medical Clinic, Inc.

      22461 Antonio Pkwy, Suite A135, 
      Rancho Santa Margarita, CA 
       (0.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      David Porzio is a primary care provider, practicing in Internal Medicine in Rancho Santa Margarita, California. Dr. Porzio is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Cellulitis, Lymphangitis, Neuralgia, and Trichohepatoenteric Syndrome.

      Advanced in Diarrhea
      Family Medicine
      Advanced in Diarrhea
      Family Medicine

      Marque Medical Clinic, Inc.

      22461 Antonio Pkwy, Suite A135, 
      Rancho Santa Margarita, CA 
       (0.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Robert Walker is a primary care provider, practicing in Family Medicine in Rancho Santa Margarita, California. Dr. Walker is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Cellulitis, Lymphangitis, Parinaud Oculoglandular Syndrome, and Tracheitis.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Advanced in Diarrhea
      Family Medicine
      Advanced in Diarrhea
      Family Medicine

      Portola Medical Services PC

      29100 Portola Pkwy, Suite B, 
      Lake Forest, CA 
       (3.3 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Matthew Zeller is a primary care provider, practicing in Family Medicine in Lake Forest, California. Dr. Zeller is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Cellulitis, Tracheitis, Neuralgia, and Papular Urticaria.

      Learn about our expert tiers
      Advanced in Diarrhea
      Gastroenterology
      Advanced in Diarrhea
      Gastroenterology
      27799 Medical Center Road, Suite 320, 
      Mission Viejo, CA 
       (4.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Douglas Nguyen is a Gastroenterologist in Mission Viejo, California. Dr. Nguyen is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Crohn's Disease, Ulcerative Colitis, Hemorrhagic Proctocolitis, Colonoscopy, and Endoscopy.

      Advanced in Diarrhea
      Gastroenterology
      Advanced in Diarrhea
      Gastroenterology
      27799 Medical Center Road, Suite 320, 
      Mission Viejo, CA 
       (4.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Edward Block is a Gastroenterologist in Mission Viejo, California. Dr. Block is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Familial Adenomatous Polyposis, Gastroesophageal Reflux Disease (GERD), Diverticular Disease, and Chronic Erosive Gastritis.

      Advanced in Diarrhea
      Gastroenterology
      Advanced in Diarrhea
      Gastroenterology
      26501 Rancho Parkway South, Suite 103, 
      Lake Forest, CA 
       (4.8 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      M Jamal is a Gastroenterologist in Lake Forest, California. Dr. Jamal is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Gastrointestinal Bleeding, Gallstones, Endoscopy, and Gastrectomy.

      Distinguished in Diarrhea
      Gastroenterology
      Distinguished in Diarrhea
      Gastroenterology

      Digestive Disease Consultants Of Orange County Inc

      113 Waterworks Way, Suite 155, 
      Irvine, CA 
       (9.4 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Shahrooz Bemanian is a Gastroenterologist in Irvine, California. Dr. Bemanian is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Menetrier Disease, Gastrectomy, and Colonoscopy.

      Distinguished in Diarrhea
      Gastroenterology
      Distinguished in Diarrhea
      Gastroenterology

      Digestive Disease Consultants Of Orange County Inc

      113 Waterworks Way, Suite 155, 
      Irvine, CA 
       (9.4 miles away)
      Languages Spoken:
      English

      Victor Yu is a Gastroenterologist in Irvine, California. Dr. Yu is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Gas Bloat Syndrome, Gastrectomy, and Colonoscopy.

      Distinguished in Diarrhea
      Gastroenterology
      Distinguished in Diarrhea
      Gastroenterology

      Digestive Disease Consultants Of Orange County Inc

      113 Waterworks Way, Suite 155, 
      Irvine, CA 
       (9.4 miles away)
      Languages Spoken:
      English

      Matthew Oman is a Gastroenterologist in Irvine, California. Dr. Oman is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Familial Adenomatous Polyposis, Hemorrhoids, Painful Swallowing, Endoscopy, and Gastrectomy.

      Experienced in Diarrhea
      Internal Medicine
      Experienced in Diarrhea
      Internal Medicine

      Centers For Family Medicine Gp

      29873 Santa Margarita Pkwy, Suite 100, 
      Rancho Santa Margarita, CA 
       (0.5 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Shaparak Kamarei is a primary care provider, practicing in Internal Medicine in Rancho Santa Margarita, California. Dr. Kamarei is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Insomnia, Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

      Experienced in Diarrhea
      Family Medicine
      Experienced in Diarrhea
      Family Medicine

      Centers For Family Medicine Gp

      29873 Santa Margarita Pkwy, Suite 100, 
      Rancho Santa Margarita, CA 
       (0.5 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Faranak Ghazi is a primary care provider, practicing in Family Medicine in Rancho Santa Margarita, California. Dr. Ghazi is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Familial Combined Hyperlipidemia, Xanthoma, Cirrhosis, and High Cholesterol.

      Experienced in Diarrhea
      Family Medicine
      Experienced in Diarrhea
      Family Medicine

      Marque Medical Clinic, Inc.

      22461 Antonio Pkwy, Suite A135, 
      Rancho Santa Margarita, CA 
       (0.7 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Mark Vincent is a primary care provider, practicing in Family Medicine in Rancho Santa Margarita, California. Dr. Vincent is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Lung Cancer, Non-Small Cell Lung Cancer (NSCLC), Colorectal Cancer, and Cellulitis. Dr. Vincent is currently accepting new patients.

      Experienced in Diarrhea
      Experienced in Diarrhea
      Rancho Santa Margarita, CA 
       (1.5 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Rosette Yson is a Pediatrics provider in Rancho Santa Margarita, California. Dr. Yson is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Obesity in Children, Asthma in Children, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), and Croup. Dr. Yson is currently accepting new patients.

      Experienced in Diarrhea
      Pediatrics
      Experienced in Diarrhea
      Pediatrics
      Rancho Santa Margarita, CA 
       (1.5 miles away)
      Languages Spoken:
      English

      Stephen Tang is a Pediatrics provider in Rancho Santa Margarita, California. Dr. Tang is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Obesity in Children, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Croup, and Asthma in Children.

      Experienced in Diarrhea
      Pediatrics
      Experienced in Diarrhea
      Pediatrics
      Rancho Santa Margarita, CA 
       (1.5 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Kenson Lo is a Pediatrics provider in Rancho Santa Margarita, California. Dr. Lo is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Obesity in Children, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Herpangina, and Croup. Dr. Lo is currently accepting new patients.

      Experienced in Diarrhea
      Gastroenterology
      Experienced in Diarrhea
      Gastroenterology
      27799 Medical Center Road, Suite 320, 
      Mission Viejo, CA 
       (4.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Daniald Rodrigues is a Gastroenterologist in Mission Viejo, California. Dr. Rodrigues is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Diverticular Disease, Familial Adenomatous Polyposis, Chronic Erosive Gastritis, Gastrectomy, and Endoscopy.

      Experienced in Diarrhea
      Gastroenterology
      Experienced in Diarrhea
      Gastroenterology
      27799 Medical Center Road, Suite 320, 
      Mission Viejo, CA 
       (4.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Michael Santoro is a Gastroenterologist in Mission Viejo, California. Dr. Santoro is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Esophagitis, Familial Adenomatous Polyposis, Barrett Esophagus, Turcot Syndrome, and Gastrectomy.

      Experienced in Diarrhea
      Gastroenterology
      Experienced in Diarrhea
      Gastroenterology
      27799 Medical Center Road, Suite 320, 
      Mission Viejo, CA 
       (4.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Eric Chu is a Gastroenterologist in Mission Viejo, California. Dr. Chu is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastrointestinal Bleeding, Hemorrhoids, Diverticular Disease, Gastrectomy, and Colonoscopy.

      Experienced in Diarrhea
      Gastroenterology
      Experienced in Diarrhea
      Gastroenterology
      27799 Medical Center Road, Suite 320, 
      Mission Viejo, CA 
       (4.1 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Daniel Kim is a Gastroenterologist in Mission Viejo, California. Dr. Kim is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Tenesmus, Familial Adenomatous Polyposis, Heartburn, and Hiatal Hernia. Dr. Kim is currently accepting new patients.

      Experienced in Diarrhea
      Family Medicine
      Experienced in Diarrhea
      Family Medicine

      Memorialcare Medical Foundation

      Mission Viejo, CA 
       (4.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Nishchal Kumar is a primary care provider, practicing in Family Medicine in Mission Viejo, California. Dr. Kumar is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Osteomyelitis in Children, Type 2 Diabetes (T2D), Cleft Tongue, and Multisystem Inflammatory Syndrome in Children (MIS-C).

      Showing 1-20 of 143

      Last Updated: 10/30/2025

      What is the definition of Diarrhea?

      Diarrhea is when you pass loose or watery stool.

      When should I see a Diarrhea doctor near Rancho Santa Margarita, 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 Rancho Santa Margarita, 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 Rancho Santa Margarita, 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 Rancho Santa Margarita, 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 Rancho Santa Margarita, 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 Rancho Santa Margarita, 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 Rancho Santa Margarita, 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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