The 20 Best Diarrhea Doctors Near Me in Merrimack, NH

Find the Top Diarrhea Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 405 doctor with experience in Diarrhea near Merrimack, NH. Of these, 385 are Experienced, 19 are Advanced and 1 are Distinguished.

Location
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405 providers found
    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Dartmouth-Hitchcock Manchester Laboratory

    100 Hitchcock Way, 
    Manchester, NH 
    Languages Spoken:
    English
    Offers Telehealth

    Diana Pascu is a primary care provider, practicing in Internal Medicine in Manchester, New Hampshire. Dr. Pascu 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 Visceromegaly, Enlarged Liver, Maturity Onset Diabetes of the Young, and Type 2 Diabetes (T2D).

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Nashua Radiology

    2300 Southwood Dr, 
    Nashua, NH 
    Languages Spoken:
    English
    Offers Telehealth

    John Buchanan is a primary care provider, practicing in Family Medicine in Nashua, New Hampshire. Dr. Buchanan is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His clinical expertise encompasses Gout, Anemia, Maturity Onset Diabetes of the Young, and Type 2 Diabetes (T2D).

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Mary Hitchcock Memorial Hospital

    1 Medical Center Dr, 
    Lebanon, NH 
    Languages Spoken:
    English
    Offers Telehealth

    Neera Gupta is a primary care provider, practicing in Internal Medicine in Lebanon, New Hampshire. Dr. Gupta is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Hypothyroidism, Multiple Carboxylase Deficiency, Vitamin B12 Deficiency Anemia, and Folate Deficiency.

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

    Beacon Internal Medicine

    155 Borthwick Ave Ste 202W, 
    Portsmouth, NH 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Daniel Davies is a primary care provider, practicing in Internal Medicine in Portsmouth, New Hampshire. Dr. Davies is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. He is also highly rated in 33 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, and Maturity Onset Diabetes of the Young. Dr. Davies is currently accepting new patients.

    Advanced in Diarrhea
    Family Medicine
    Advanced in Diarrhea
    Family Medicine

    Cardiovascular Specialists Of New England LLC

    6 Buttrick Rd Ste 200, 
    Londonderry, NH 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    John Wheeler is a primary care provider, practicing in Family Medicine in Londonderry, New Hampshire. Dr. Wheeler is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 77 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Bronchitis, Obesity, and Osteomyelitis in Children. Dr. Wheeler is currently accepting new patients.

    Advanced in Diarrhea
    Family Medicine
    Advanced in Diarrhea
    Family Medicine

    Exeter Hospital

    5 Alumni Dr, 
    Exeter, NH 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Michael Pangan is a primary care provider, practicing in Family Medicine in Exeter, New Hampshire. Dr. Pangan is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 33 other conditions, according to our data. His clinical expertise encompasses Chronic Cough, High Cholesterol, Lung Metastases, and Familial Hypertension. Dr. Pangan is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Office

    50 Michels Way Unit 102, 
    Londonderry, NH 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Christine Hand is a primary care provider, practicing in Family Medicine in Londonderry, New Hampshire. Dr. Hand is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 44 other conditions, according to our data. Her clinical expertise encompasses Obesity, Type 2 Diabetes (T2D), Obesity in Children, and Generalized Anxiety Disorder (GAD). Dr. Hand is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Southern New Hampshire Internal Medicine Associates PC

    6 Tsienneto Rd Ste 300, 
    Derry, NH 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Mark Richard is a primary care provider, practicing in Internal Medicine in Derry, New Hampshire. Dr. Richard is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 34 other conditions, according to our data. His clinical expertise encompasses Sitosterolemia, High Cholesterol, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Richard is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Midstate Health Center

    28 Main St, 
    Plymouth, NH 
    Languages Spoken:
    English
    Accepting New Patients

    David Fagan is a primary care provider, practicing in Internal Medicine in Plymouth, New Hampshire. Dr. Fagan is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 34 other conditions, according to our data. His clinical expertise encompasses Psoriasis, Familial Hypertension, Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Fagan is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Exeter Hospital

    5 Alumni Dr, 
    Exeter, NH 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Michael Wu is a primary care provider, practicing in Family Medicine in Exeter, New Hampshire. Dr. Wu is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 37 other conditions, according to our data. His clinical expertise encompasses Temporal Arteritis, High Cholesterol, Type 2 Diabetes (T2D), and Hypertension. Dr. Wu is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Cardiovascular Specialists Of New England LLC

    6 Buttrick Rd Ste 200, 
    Londonderry, NH 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Dennis Rork is a primary care provider, practicing in Family Medicine in Londonderry, New Hampshire. Dr. Rork 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 Obesity, Generalized Anxiety Disorder (GAD), Cirrhosis, and Familial Combined Hyperlipidemia. Dr. Rork is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Wentworth-Douglass Hospital

    789 Central Ave, 
    Dover, NH 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Restituto Malonso is a primary care provider, practicing in Internal Medicine in Dover, New Hampshire. Dr. Malonso is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Necrosis, Stasis Dermatitis and Ulcers, Childhood Iron Deficiency Anemia, and Low Sodium Level. Dr. Malonso is currently accepting new patients.

    Experienced in Diarrhea
    Experienced in Diarrhea

    Beacon Surgical Associates PA

    20 Hampton Rd, 
    Exeter, NH 
    Languages Spoken:
    English
    Accepting New Patients

    Elizabeth Buchanan is a primary care provider, practicing in Family Medicine in Exeter, New Hampshire. Dr. Buchanan is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 16 other conditions, according to our data. Her clinical expertise encompasses Lung Cancer, High Cholesterol, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Buchanan is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Northeast Professional Registry Of Nurses Inc.

    4 Alumni Dr, 
    Exeter, NH 
    Languages Spoken:
    English
    Accepting New Patients

    Claudia Mcqueen is a primary care provider, practicing in Internal Medicine in Exeter, New Hampshire. Dr. Mcqueen is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 16 other conditions, according to our data. Her clinical expertise encompasses Bronchiectasis, Lung Metastases, Chronic Kidney Disease, and Heart Tumor. Dr. Mcqueen is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Southern New Hampshire Internal Medicine Associates PC

    6 Tsienneto Rd Ste 300, 
    Derry, NH 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Thomas Hong is a primary care provider, practicing in Internal Medicine in Derry, New Hampshire. Dr. Hong 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 High Cholesterol, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension. Dr. Hong is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Beacon Surgical Associates PA

    20 Hampton Rd, 
    Exeter, NH 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Christen Doucet is a primary care provider, practicing in Family Medicine in Exeter, New Hampshire. Dr. Doucet 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 Chronic Obstructive Pulmonary Disease (COPD), Activated PI3K Delta Syndrome (APDS), Holocarboxylase Synthetase Deficiency, and ZAP70-Related Severe Combined Immunodeficiency. Dr. Doucet is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    CH DHC Inc

    253 Pleasant St, 
    Concord, NH 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Jasmine Shah is a primary care provider, practicing in Internal Medicine in Concord, New Hampshire. Dr. Shah 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 Hypothyroidism, Type 2 Diabetes (T2D), Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Shah is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    LRG Healthcare

    724 N Main St, 
    Laconia, NH 
    Languages Spoken:
    English
    Accepting New Patients

    Valentin Milchev is a primary care provider, practicing in Internal Medicine in Laconia, New Hampshire. Dr. Milchev is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Lung Metastases, Movement Disorders, Parkinson's Disease, Dementia, and Endoscopy. Dr. Milchev is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    New England Molecular Imaging LLC

    160 S River Rd, 
    Bedford, NH 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Ajay Koshy is a primary care provider, practicing in Family Medicine in Bedford, New Hampshire. Dr. Koshy is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Chronic Obstructive Pulmonary Disease (COPD), Osteoarthritis, Type 2 Diabetes (T2D), and Maturity Onset Diabetes of the Young. Dr. Koshy is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Office

    49 Range Rd Ste 110, 
    Windham, NH 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Paul Macdonald is a primary care provider, practicing in Internal Medicine in Windham, New Hampshire. Dr. Macdonald is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Congenital Sucrase-Isomaltase Deficiency, Glucose-Galactose Malabsorption Deficiency, Glucose Phosphate Isomerase Deficiency, and Glucocorticoid-Remediable Aldosteronism. Dr. Macdonald is currently accepting new patients.

    Showing 1-20 of 405

    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 Merrimack, NH?

    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 Merrimack, NH?

    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 Merrimack, NH?

    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 Merrimack, NH?

    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 Merrimack, NH?

    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 Merrimack, NH?

    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 Merrimack, NH?

    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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