The 20 Best Diarrhea Doctors Near Me in Covina, CA

Find the Top Diarrhea Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 325 doctor with experience in Diarrhea near Covina, CA. Of these, 300 are Experienced, 22 are Advanced and 2 are Distinguished.

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325 providers found
    Experienced in Diarrhea
    General Practice | Internal Medicine
    Experienced in Diarrhea
    General Practice | Internal Medicine

    Office

    1840 N Hacienda Blvd Ste 6, 
    La Puente, CA 
     (4.8 miles away)
    Languages Spoken:
    English

    Jesus Arenas is a primary care provider, practicing in General Practice and Internal Medicine in La Puente, California. Dr. Arenas is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Arthritis, Hypertensive Heart Disease, Enlarged Liver, and Type 2 Diabetes (T2D).

    Advanced in Diarrhea
    Gastroenterology | Internal Medicine
    Advanced in Diarrhea
    Gastroenterology | Internal Medicine

    Citrus Valley Gastroenterology A California Medical Corporation

    500 W San Bernardino Rd, 
    Covina, CA 
     (0.5 miles away)
    Experience:
    41+ years
    Languages Spoken:
    English

    Osama Sidhom is an Internal Medicine specialist and a Gastroenterologist in Covina, California. Dr. Sidhom has been practicing medicine for over 41 years and is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Swallowing Difficulty, Painful Swallowing, Gastrointestinal Bleeding, Gastrostomy, and Gastrectomy.

    Advanced in Diarrhea
    Gastroenterology | Internal Medicine
    Advanced in Diarrhea
    Gastroenterology | Internal Medicine

    Citrus Valley Gastroenterology A California Medical Corporation

    415 W Route 66, 
    Glendora, CA 
     (2.9 miles away)
    Experience:
    27+ years
    Languages Spoken:
    English

    Sartaj Arora is an Internal Medicine specialist and a Gastroenterologist in Glendora, California. Dr. Arora has been practicing medicine for over 27 years and is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Swallowing Difficulty, Painful Swallowing, Gastrointestinal Bleeding, Gastrectomy, and Gastrostomy.

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

    Citrus Valley Gastroenterology A California Medical Corporation

    415 W Route 66, 
    Glendora, CA 
     (2.9 miles away)
    Experience:
    23+ years
    Languages Spoken:
    English
    Offers Telehealth

    Patrick Truong is an Internal Medicine specialist and a Gastroenterologist in Glendora, California. Dr. Truong has been practicing medicine for over 23 years and is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Painful Swallowing, Swallowing Difficulty, Gastrointestinal Bleeding, Gastrectomy, and Gastrostomy.

    Advanced in Diarrhea
    Gastroenterology | Internal Medicine
    Advanced in Diarrhea
    Gastroenterology | Internal Medicine

    Citrus Valley Gastroenterology A California Medical Corporation

    415 W Route 66, 
    Glendora, CA 
     (2.9 miles away)
    Experience:
    15+ years
    Languages Spoken:
    English
    Offers Telehealth

    Adam Snyder is an Internal Medicine specialist and a Gastroenterologist in Glendora, California. Dr. Snyder has been practicing medicine for over 15 years and is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Swallowing Difficulty, Painful Swallowing, Visceromegaly, Gastrostomy, and Gastrectomy.

    Advanced in Diarrhea
    Gastroenterology | Internal Medicine
    Advanced in Diarrhea
    Gastroenterology | Internal Medicine

    Citrus Valley Gastroenterology A California Medical Corporation

    415 W Route 66, 
    Glendora, CA 
     (2.9 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English
    Offers Telehealth

    Ankush Sharma is an Internal Medicine specialist and a Gastroenterologist in Glendora, California. Dr. Sharma has been practicing medicine for over 18 years and is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Gastrointestinal Bleeding, Swallowing Difficulty, Painful Swallowing, Colonoscopy, and Gastrectomy.

    Experienced in Diarrhea
    Experienced in Diarrhea
    315 N 3rd Ave, Suite 205, 
    Covina, CA 
     (0.2 miles away)
    Languages Spoken:
    English

    Priti Desai is a Pediatrics provider in Covina, California. Dr. Desai is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Roseola, Viral Gastroenteritis, Asthma in Children, and Obesity in Children.

    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology

    Boston Medical And Surgical Dermatology

    247 W San Bernardino Rd, 
    Covina, CA 
     (0.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Shahnawaz Jaffer is a Gastroenterologist in Covina, California. Dr. Jaffer is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are VIPoma, Diverticular Disease, Esophagitis, Colonoscopy, and Gastrectomy.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Paul S. Usborne, MD

    256 W San Bernardino Rd, 
    Covina, CA 
     (0.2 miles away)
    Experience:
    24+ years
    Languages Spoken:
    English
    Offers Telehealth

    Paul Usborne is a primary care provider, practicing in Family Medicine in Covina, California. Dr. Usborne has been practicing medicine for over 24 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Multiple Carboxylase Deficiency, Folate Deficiency, Vitamin B12 Deficiency Anemia, and Subacute Combined Degeneration.

    Experienced in Diarrhea
    Family Medicine | General Practice
    Experienced in Diarrhea
    Family Medicine | General Practice

    Valley Physicians Medical Group Inc.

    168 W Badillo St, 
    Covina, CA 
     (0.3 miles away)
    Experience:
    47+ years
    Languages Spoken:
    English
    Offers Telehealth

    Prasert Vassantachart is a primary care provider, practicing in Family Medicine and General Practice in Covina, California. Dr. Vassantachart has been practicing medicine for over 47 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Costochondritis, Tietz Syndrome, Type 2 Diabetes (T2D), Gastrostomy, and Colonoscopy.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    J Gabriel Castellanos, MD Inc.

    234 E Badillo St, 
    Covina, CA 
     (0.3 miles away)
    Experience:
    43+ years
    Languages Spoken:
    English

    Jose Castellanos is a primary care provider, practicing in Family Medicine in Covina, California. Dr. Castellanos has been practicing medicine for over 43 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Type 2 Diabetes (T2D), Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Hypertension.

    Experienced in Diarrhea
    Geriatrics
    Experienced in Diarrhea
    Geriatrics

    Office

    250 W Badillo St, 
    Covina, CA 
     (0.3 miles away)
    Languages Spoken:
    English

    Robert Baker is a primary care provider, practicing in Geriatrics in Covina, California. Dr. Baker is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Tracheitis, Shingles, Familial Hypertension, Hypertension, and Hip Replacement.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Radhika Tulpule Md.

    110 N 4th Ave, 
    Covina, CA 
     (0.3 miles away)
    Experience:
    48+ years
    Languages Spoken:
    English

    Radhika Tulpule is a primary care provider, practicing in Internal Medicine in Covina, California. Dr. Tulpule has been practicing medicine for over 48 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Apparent Mineralocorticoid Excess, Type 2 Diabetes (T2D), Familial Hyperaldosteronism, Gastrostomy, and Ureteroscopy.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Dagher MD Medical Group, Inc.

    376 W Badillo St, 
    Covina, CA 
     (0.4 miles away)
    Experience:
    33+ years
    Languages Spoken:
    English
    Offers Telehealth

    Nadim Dagher is a primary care provider, practicing in Internal Medicine in Covina, California. Dr. Dagher has been practicing medicine for over 33 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Osteomyelitis in Children, Axillary Nerve Dysfunction, Erectile Dysfunction (ED), and Persistent Genital Arousal Disorder.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Optum - Covina Main

    420 W Rowland St, 
    Covina, CA 
     (0.9 miles away)
    Experience:
    42+ years
    Languages Spoken:
    English

    Muhammad Sohel is a primary care provider, practicing in Internal Medicine in Covina, California. Dr. Sohel has been practicing medicine for over 42 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Cellulitis, Peptic Ulcer, Necrosis, and Parinaud Oculoglandular Syndrome.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Optum - Covina Main

    420 W Rowland St, 
    Covina, CA 
     (0.9 miles away)
    Experience:
    8+ years
    Languages Spoken:
    English

    Gousia Shoukat is a primary care provider, practicing in Family Medicine in Covina, California. Dr. Shoukat has been practicing medicine for over 8 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Bronchitis, Pharyngomaxillary Space Abscess, Parinaud Oculoglandular Syndrome, and Lymphangitis.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Optum - Covina Main

    420 W Rowland St, 
    Covina, CA 
     (0.9 miles away)
    Experience:
    4+ years
    Languages Spoken:
    English

    Muhammad Umer is a primary care provider, practicing in Family Medicine in Covina, California. Dr. Umer has been practicing medicine for over 4 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Palatopharyngeal Incompetence, Parinaud Oculoglandular Syndrome, Cellulitis, and Chronic Rhinosinusitis with Nasal Polyps (CRSwNP).

    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology

    CVG Urgent Care And Infusion Center

    500 W San Bernardino Rd Ste B, 
    Covina, CA 
     (1.1 miles away)
    Languages Spoken:
    English

    Yi-chia Wu is a Gastroenterologist in Covina, California. Dr. Wu is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Gastritis, Hemorrhoids, Intestinal Cancer, and Anemia.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Mayflower Medical Group Inc.

    1433 N Hollenbeck Ave, 
    Covina, CA 
     (1.2 miles away)
    Experience:
    41+ years
    Languages Spoken:
    English

    Adelaide Willis is a primary care provider, practicing in Family Medicine in Covina, California. Dr. Willis has been practicing medicine for over 41 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Bronchitis, High Cholesterol, Osteomyelitis in Children, and Pustules.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Mayflower Medical Group Inc.

    1433 N Hollenbeck Ave, 
    Covina, CA 
     (1.2 miles away)
    Experience:
    37+ years
    Languages Spoken:
    English

    Lina Cruz is a primary care provider, practicing in Internal Medicine in Covina, California. Dr. Cruz has been practicing medicine for over 37 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Osteomyelitis in Children, Type 2 Diabetes (T2D), High Cholesterol, and Hypertension.

    Showing 1-20 of 325

    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 Covina, 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 Covina, 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 Covina, 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 Covina, 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 Covina, 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 Covina, 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 Covina, 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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