The 20 Best Diarrhea Doctors Near Me in San Marcos, TX

Find the Top Diarrhea Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 43 doctor with experience in Diarrhea near San Marcos, TX. Of these, 32 are Experienced, 9 are Advanced and 2 are Distinguished.

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43 providers found
    Distinguished in Diarrhea
    Gastroenterology
    Distinguished in Diarrhea
    Gastroenterology

    Central Texas Ambulatory Endoscopy Center

    1305 Wonder World Dr Ste 105, 
    San Marcos, TX 
     (2.2 miles away)
    Languages Spoken:
    English

    Shannon Marek is a Gastroenterologist in San Marcos, Texas. Dr. Marek is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Lower Esophageal Ring, Benign Esophageal Stricture, Swallowing Difficulty, Endoscopy, and Gastrectomy.

    Advanced in Diarrhea
    Internal Medicine
    Advanced in Diarrhea
    Internal Medicine

    William Kern Deschner MD PA Gastroenterology Of San Marcos

    1305 Wonder World Dr Ste 200, 
    San Marcos, TX 
     (1.5 miles away)
    Languages Spoken:
    English

    Steven Pearce is an Internal Medicine provider in San Marcos, Texas. Dr. Pearce is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Portal Hypertension, Familial Adenomatous Polyposis, Childhood Volvulus, Endoscopy, and Gastrectomy.

    Advanced in Diarrhea
    Family Medicine
    Advanced in Diarrhea
    Family Medicine

    Office

    200 N Interstate 35 Ste 102, 
    San Marcos, TX 
     (1.5 miles away)
    Languages Spoken:
    English

    Nimesh Patel is a primary care provider, practicing in Family Medicine in San Marcos, Texas. Dr. Patel is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Tracheitis, H1N1 Influenza, Sinusitis, and Empyema.

    Learn about our expert tiers
    Advanced in Diarrhea
    Internal Medicine
    Advanced in Diarrhea
    Internal Medicine

    William Kern Deschner MD PA Gastroenterology Of San Marcos

    1305 Wonder World Dr Ste 200, 
    San Marcos, TX 
     (1.5 miles away)
    Languages Spoken:
    English

    Thomas Kepczyk is an Internal Medicine provider in San Marcos, Texas. Dr. Kepczyk is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Lower Esophageal Ring, Benign Esophageal Stricture, Endoscopy, and Gastrectomy.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology

    William Kern Deschner MD PA Gastroenterology Of San Marcos

    1305 Wonder World Dr Ste 200, 
    San Marcos, TX 
     (1.5 miles away)
    Languages Spoken:
    English

    Juan Diocares is a Gastroenterologist in San Marcos, Texas. Dr. Diocares is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastric Dysmotility, Familial Adenomatous Polyposis, Turcot Syndrome, Endoscopy, and Gastrectomy.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology

    William Kern Deschner MD PA Gastroenterology Of San Marcos

    1305 Wonder World Dr Ste 200, 
    San Marcos, TX 
     (1.5 miles away)
    Experience:
    10+ years
    Languages Spoken:
    English

    Matthew Meriwether is a Gastroenterologist in San Marcos, Texas. Dr. Meriwether has been practicing medicine for over 10 years and is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Turcot Syndrome, Gardner Syndrome, Gastroesophageal Reflux Disease (GERD), Gastrostomy, and Gastrectomy.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology

    William Kern Deschner MD PA Gastroenterology Of San Marcos

    1305 Wonder World Dr Ste 200, 
    San Marcos, TX 
     (1.5 miles away)
    Languages Spoken:
    English

    Carlos Neghme is a Gastroenterologist in San Marcos, Texas. Dr. Neghme is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Familial Adenomatous Polyposis, Turcot Syndrome, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrectomy.

    Advanced in Diarrhea
    Internal Medicine
    Advanced in Diarrhea
    Internal Medicine

    Central Texas Ambulatory Endoscopy Center

    1305 Wonder World Dr Ste 105, 
    San Marcos, TX 
     (2.2 miles away)
    Languages Spoken:
    English

    William Deschner is an Internal Medicine provider in San Marcos, Texas. Dr. Deschner is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Eosinophilic Colitis, Familial Adenomatous Polyposis, Gardner Syndrome, Endoscopy, and Gastrectomy.

    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology

    William Kern Deschner MD PA Gastroenterology Of San Marcos

    1305 Wonder World Dr Ste 200, 
    San Marcos, TX 
     (1.5 miles away)
    Languages Spoken:
    English

    Edward Coles is a Gastroenterologist in San Marcos, Texas. Dr. Coles is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Lower Esophageal Ring, Benign Esophageal Stricture, Diverticular Disease, and Hemorrhoids.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Medfirst Primary Care

    151 Stagecoach Trl Ste 105, 
    San Marcos, TX 
     (1.5 miles away)
    Languages Spoken:
    English

    Donna Dolan is a primary care provider, practicing in Internal Medicine in San Marcos, Texas. Dr. Dolan is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are High Cholesterol, Hypothyroidism, Maturity Onset Diabetes of the Young, and Tracheitis.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Christus Santa Rosa Hospice-San Marcos

    San Marcos, TX 
     (1.5 miles away)
    Languages Spoken:
    English

    Gregory Moore is a primary care provider, practicing in Internal Medicine in San Marcos, Texas. Dr. Moore is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Sitosterolemia, High Cholesterol, Familial Hypertension, and Hypertension.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Office

    2406 Hunter Rd Ste 106, 
    San Marcos, TX 
     (1.5 miles away)
    Languages Spoken:
    English

    Alan Lee is a primary care provider, practicing in Family Medicine in San Marcos, Texas. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Prinzmetal's Variant Angina, Coronary Artery Spasm, Familial Combined Hyperlipidemia, and Xanthoma.

    Distinguished in Diarrhea
    Gastroenterology
    Distinguished in Diarrhea
    Gastroenterology

    Ramirez Posey MD PLLC

    1180 Seton Pkwy Ste 260, 
    Kyle, TX 
     (10.5 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Daniel Emmett is a Gastroenterologist in Kyle, Texas. Dr. Emmett is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Diverticular Disease, Gastrectomy, and Colonoscopy.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology

    Gastromedconnect PLLC

    115 Kohlers Xing Ste 455, 
    Kyle, TX 
     (10.5 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sami Adib is a Gastroenterologist in Kyle, Texas. Dr. Adib is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Diarrhea, Trichohepatoenteric Syndrome, Hemorrhoids, Macroamylasemia, and Gallbladder Removal.

    Marjan Linnell
    Experienced in Diarrhea
    Experienced in Diarrhea

    Austin Regional Clinic PA

    4100 Everett Ste 400, 
    Kyle, TX 
     (10.5 miles away)
    Languages Spoken:
    English

    Marjan Linnell is a Pediatrics provider in Kyle, Texas. Dr. Linnell is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Obesity in Children, Delayed Growth, Viral Gastroenteritis, and Croup.

    Advanced in Diarrhea
    Pediatrics
    Advanced in Diarrhea
    Pediatrics

    Pediatric Junction PA

    211 Railroad St, 
    Buda, TX 
     (15.0 miles away)
    Languages Spoken:
    English

    Anna Lincoln is a Pediatrics provider in Buda, Texas. Dr. Lincoln is rated as an Advanced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Increased Head Circumference, Diarrhea, Developmental Dysphasia Familial, and Croup.

    Experienced in Diarrhea
    Pediatrics
    Experienced in Diarrhea
    Pediatrics

    Austin Regional Clinic PA

    4100 Everett Ste 400, 
    Kyle, TX 
     (10.5 miles away)
    Languages Spoken:
    English

    Raymond Teoh is a Pediatrics provider in Kyle, Texas. Dr. Teoh 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), Scarlet Fever, and Croup.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Austin Regional Clinic PA

    4100 Everett Ste 400, 
    Kyle, TX 
     (10.5 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Philip Roberts is a primary care provider, practicing in Family Medicine in Kyle, Texas. Dr. Roberts is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Tracheitis, Sinusitis, Empyema, and Multisystem Inflammatory Syndrome in Children (MIS-C).

    Experienced in Diarrhea
    Pediatrics
    Experienced in Diarrhea
    Pediatrics

    Austin Regional Clinic PA

    4100 Everett Ste 400, 
    Kyle, TX 
     (10.5 miles away)
    Languages Spoken:
    English

    Rebecca Kim is a Pediatrics provider in Kyle, Texas. Dr. Kim is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Viral Gastroenteritis, Scarlet Fever, Croup, and Multisystem Inflammatory Syndrome in Children (MIS-C).

    Experienced in Diarrhea
    Pediatrics
    Experienced in Diarrhea
    Pediatrics

    Austin Regional Clinic PA

    4100 Everett Ste 400, 
    Kyle, TX 
     (10.5 miles away)
    Languages Spoken:
    English

    Joyce Yi is a Pediatrics provider in Kyle, Texas. Dr. Yi is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Obesity in Children, Scarlet Fever, Croup, and Chronic Rhinosinusitis with Nasal Polyps (CRSwNP).

    Showing 1-20 of 43

    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 San Marcos, TX?

    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 San Marcos, TX?

    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 San Marcos, TX?

    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 San Marcos, TX?

    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 San Marcos, TX?

    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 San Marcos, TX?

    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 San Marcos, TX?

    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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