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Dr. Mark Detweiler, MD

Londonderry, NH

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Detweiler, Specialist in Londonderry, NH?

    Dr. Mark Detweiler, MD is a Specialist, who primarily practices in Londonderry, NH. He is board certified by the American Board of Internal Medicine. Dr. Detweiler completed his residency at Univ Of Ut Med Ctr, Gastroenterology; Fletcher Allen Hlth Care, Internal Medicine. Dr. Detweiler is fluent in English, Moldavian, Moldovan, and Romanian, and is currently seeing new patients. Dr. Detweiler’s practice accepts Cigna, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Detweiler’s office at (603) 818-4712.

    What are Areas of Expertise for Dr. Detweiler?

    Dr. Mark Detweiler, MD is a highly-rated, board-certified Specialist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Detweiler empowers patients to confidently navigate their health journey, specializing in Chest Pain-Non Cardiac, Constipation, Diarrheal Diseases, Digestive Disorders, Irritable Bowel Syndrome, Nutrition & Cancer Prevention/Control, Nutrition in Bowel Disorders, Pain-Abdominal/Functional, Ulcerative Colitis/Crohn's, or comprehensive wellness support. Serving the Londonderry/NH community, Dr. Detweiler is dedicated to enhancing lives through expert, patient-centered care.

    Where did Dr. Detweiler go to medical school and complete their residency?

    • Residency: Univ Of Ut Med Ctr, Gastroenterology; Fletcher Allen Hlth Care, Internal Medicine

    • Medical School: Pa State Univ Coll Of Med- Hershey Pa

    Is Dr. Detweiler board certified in Specialist?

    Yes, Dr. Mark Detweiler, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Detweiler speak?

    Dr. Detweiler and their clinical team can communicate with patients in the following languages:

    • English

    • Moldavian

    • Moldovan

    • Romanian

    What conditions does Dr. Detweiler treat?

    As a Specialist, Dr. Detweiler diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Detweiler. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.

    Also known as:

    • Diarrhea
    • Loose stools
    • Runny poop
    • Frequent bowel movements

    ICD-10 Codes:

    • R197: Diarrhea, unspecified

    Also known as:

    • Abdominal Pain
    • Stomach Ache
    • Belly Pain
    • Stomach Pain

    ICD-10 Codes:

    • R109: Unspecified abdominal pain

    Also known as:

    • Burping
    • Gas
    • Gas in the Digestive Tract
    • Belching
    • Eructation
    • Excessive burping

    ICD-10 Codes:

    • R142: Eructation

    Also known as:

    • Immune System Disorder
    • Immune System and Disorder
    • Immunity Problems
    • Immune System Dysfunction
    • Immunological Disorders

    ICD-10 Codes:

    • D899: Disorder involving the immune mechanism, unspecified

    Also known as:

    • Chronic Hepatitis C
    • Hepatitis C
    • Long-term Hepatitis C
    • Persistent Hepatitis C
    • Hep C

    ICD-10 Codes:

    • B182: Chronic viral hepatitis C

    Also known as:

    • Nutritional Deficiency
    • Malnutrition
    • Nutrient Shortage
    • Lack of Essential Nutrients

    ICD-10 Codes:

    • E639: Nutritional deficiency, unspecified

    Does Dr. Detweiler accept my insurance?

    Dr. Detweiler accepts most major insurance plans. Important: Please call our office at (603) 818-4712 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Detweiler accept in Londonderry, NH?

    Dr. Detweiler in Londonderry, NH accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Blue Cross & Blue Shield of Rhode Island

    • Cigna

    • Elevance Health Inc. (formerly Anthem)

    • Express Scripts

    • Federal Employee Program

    • Inland Empire

    • Martin's Point

    • Medicare

    • State of Tennessee

    • USAA

    View All Insurances

    Where is Dr. Detweiler's office located?

    Dr. Mark Detweiler's Primary Practice

    1B Commons Dr Unit 9A

    Londonderry, NH 03053

    (603) 818-4712

    Get Directions

    What is Dr. Detweiler's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Detweiler's National Provider Identifier (NPI) number is 1548344583.

    What common questions do patients ask about Dr. Detweiler?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Detweiler

    What is Dr. Mark Detweiler's specialty?

    Dr. Detweiler is a Specialist near Londonderry, NH. Contact Dr. Detweiler to book an appointment today.

    Is this Dr. Mark Detweiler affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Detweiler is affiliated with Elliot Hospital, Southern New Hampshire Medical Center, Concord Hospital, Dartmouth Hitchcock Medical Center, Concord Hospital – Laconia, Rhode Island Hospital which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    Where can I learn more about Specialist?

    Explore Specialist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is Mark Detweiler accepting new patients in Londonderry, NH?

    Yes, Dr. Mark Detweiler is accepting new patients at this time.

    Does Dr. Mark Detweiler offer online booking?

    Please contact Dr. Detweiler's office at (603) 818-4712 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Mark Detweiler?

    Please contact Dr. Detweiler's office at (603) 818-4712 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Mark Detweiler have?

    Dr. Mark Detweiler is certified by the American Board of Internal Medicine.

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