Dr. Mark K. Detweiler, MD

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Dr. Mark K. Detweiler, MD

Gastroenterology | Male

Londonderry Gastroenterology 1B Commons Dr Unit 9A, Londonderry, NH 03053 Get Directions
(603) 818-4712

Learn about this Doctor

I am a doctor who takes time to listen to your concerns, and includes you in making decisions abut your...   Read More

Dr. Detweiler's Experience

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Experience Match

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Specialties

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2
Board Certifications

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Why It Matters: Board Certifications

Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

  • Gastroenterologynull
  • Internal Medicinenull
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Conditions Treated

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Procedures Performed

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Background Check

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  • 0
    Malpractice Claims not available

    Healthgrades does not collect malpractice information for New Hampshire.

  • 0
    Sanctions

    No sanctions history found for the years that Healthgrades collects data.

  • 0
    Board Actions

Education

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  • Medical School
  • Internship Hospital
  • Residency Hospital
  • Fellowship Hospital
  • Undergraduate School
  • Other Education
Awards & Recognition

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    Languages Spoken

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    Languages Spoken

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      Dr. Detweiler accepts 10 insurance carriers

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      Dr. Detweiler's Review Details
      4.5 based on 16 responses
      Help millions around the nation find the right doctor by sharing your experience with your doctor.
      Key Survey Insights
      • Trustworthiness
         (16)
      • Helpfulness
         (16)
      • Staff
         (16)
      • Scheduling
         (16)
      Experience with Dr. Detweiler
      • Level of trust in provider's decisions
         (16)
      • How well provider explains medical condition(s)
         (16)
      • How well provider listens and answers questions
         (16)
      • Spends appropriate amount of time with patients
         (16)
      Dr. Detweiler's Office & Staff
      • Ease of scheduling urgent appointments
         (16)
      • Office environment, cleanliness, comfort, etc.
         (16)
      • Staff friendliness and courteousness
         (16)
      • Total wait time (waiting & exam rooms)
        10 – 15 minutes (13)
      Open Full Survey+
      in Hudson, NH |
      I am so impressed with Dr. D.Years of being dismissed by my sons pediatrician and telling me his symptoms were "normal" and no big deal left me frustrated; I knew something was not right so I went for another opinion w Dr.D. At the 1st visit he knew something was amiss, we did various tests and found the problem.He explained things to my son so he could understand and how HE Had to take control of his issue and it made a huge impact.Dr D sees both my sons and I could not be more grateful.
      Londonderry, NH |
      Scary! Received a summary of visit a few days after my appointment. Confused me with another patient. Listed symptoms I never had, but never mentioned the symptoms I did have. Wouldn't return my call. He Got indignant when I told receptionist- no nurses - what happened. Said I could make an additional appointment to " get my symptoms right ". Guess his mistakes are my fault?
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      Specialties

      • Gastroenterology

      Board Certifications

      Why It Matters: Dr. Detweiler's Board Certifications

      Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

      • Gastroenterology
      • Internal Medicine

      Conditions Treated

      • Abdominal Disorders
      • Abdominal Pain
      • Abscess
      • Anemia
      • Autoimmune Diseases
      • Bacterial Infections of the Digestive Tract
      • Candida Albicans Fungus Allergy
      • Celiac Disease
      • Cirrhosis
      • Colitis
      • Colon Disorders
      • Constipation
      • Crohn's Disease
      • Diaphragmatic and-or Hiatal Hernia
      • Diarrhea
      • Diverticulitis, Intestinal
      • Diverticulosis, Intestinal
      • Duodenal Ulcer
      • Duodenitis
      • Dysphagia
      • Enteritis
      • Esophageal Achalasia and Cardiospasm
      • Esophageal Diseases
      • Esophageal Ulcer
      • Esophagitis
      • Fungal Infections
      • Gas-Bloat Syndrome
      • Gastric Ulcer
      • Gastritis
      • Gastroesophageal Reflux Disease (GERD)
      • Gastrointestinal Diseases
      • Gastrointestinal Malabsorption
      • Gastroparesis
      • Gluten Sensitivity
      • Heartburn
      • Hemochromatosis
      • Hemorrhoids
      • Hepatic Encephalopathy
      • Hepatitis
      • Hepatitis C
      • Indigestion
      • Inflammatory Bowel Disease
      • Invasive Candidiasis
      • Irritable Bowel Syndrome
      • Lactose Intolerance
      • Malnutrition
      • Nausea
      • Non-Alcoholic Fatty Liver Disease
      • Noninfectious Gastroenteritis and Colitis
      • Non-Neonatal Jaundice
      • Pancreatitis
      • Peptic Ulcer
      • Pyloric Stenosis
      • Stomach and Small Intestine Cancer
      • Stomach Diseases
      • Ulcer
      • Ulcerative Colitis
      • Unexplained Weight Loss
      • Viral Hepatitis
      • Vomiting Disorders

      Procedures Performed

      Dr. Detweiler does not have any procedures listed. If you are Dr. Detweiler and would like to add procedures you perform, please update your free profile.

      Background Check

      • n/a
        Malpractice Claims not available

        Healthgrades does not collect malpractice information for New Hampshire.

      • 0
        Sanctions

        No sanctions history found for the years that Healthgrades collects data.

      • 0
        Board Actions

        No board actions found for the years that Healthgrades collects data.

      Education

      • Medical School
        Pennsylvania State University College Of Medicine

        Graduated in 1979

      • Internship Hospital
        University Vt Med Center Hospital

        Completed in 1980

      • Residency Hospital
        University Vt Med Center Hospital

        Completed in 1981

      • Fellowship Hospital
        University Utah Med Center

        Completed in 1984

      • Undergraduate School
        Lehigh University Bs Chemistry

        Graduated in 1975

      Awards & Recognition

      • Awards & Honors
        • Healthgrades Honor Roll
        What is a recognized doctor
      • Media & Publications

        Dr. Detweiler has no media or publications listed.

      Languages Spoken

      • English
      ×

      Dr. Detweiler's experience matches your search based on the following criteria:

      • Based on total number of patients treated over the last 12 months
      • Specializes in Gastroenterology
      • Board certified in Gastroenterology and Internal Medicine
      • Malpractice claims in New Hampshire not available
      • No sanctions found
      • No board actions found
      ×

      Why Does Experience Matter?

      Even specialists specialize. One orthopedic surgeon might do nothing but hip surgeries, while another does nothing but knees. If you want the best possible care, it’s critical to match your medical need with the doctor who truly specializes in treating it.

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      Patient Satisfaction Results for Dr. Detweiler

      Overall Patient Satisfaction Score

      Dr. Detweiler's Office & Staff

      Ease of scheduling urgent appointments
      Office environment, cleanliness, comfort, etc.
      Staff friendliness and courteousness
      Total wait time (waiting & exam rooms)
      10 – 15 minutes

      Experience with Dr. Detweiler

      Level of trust in provider's decisions
      How well provider explains medical condition(s)
      How well provider listens and answers questions
      Spends appropriate amount of time with patients
      ×

      Dr. Detweiler's Care Philosophy

      I am a doctor who takes time to listen to your concerns, and includes you in making decisions abut your care. When possible I prefer to avoid antibiotics and other prescription medications as they the often have unwanted side effects. I also prefer to treat the root cause of a problem rather than bandage over the symptoms.

      ×

      Dr. Detweiler says...

      What is unique about my treatment is that I combined the best of both evidence-based medicine and nutrition, along with the 3000-year-old tradition of using herbs as medicine.  I will use whatever set of tools are the least toxic and most appropriate for a given patient.  Statistical humans in a one on one doctor patient relationship are pretty much irrelevant.  Each individual treatment plan is fundamentally an experiment.  This goes for traditional physicians as well, but they do not recognize it.  Many FDA approved medications work on as few as 20 to 30% of patients.  Thus, when one is prescribed such medication.  It is basically an experiment to see if it works for you.  Similarly, the choice of an herbal or nutritional program will necessarily be an experiment.  I have 15 years of experience in the use of mixed medical paradigms and feel very comfortable with the biases that I've developed, but recognize that they are biases.  Most of my decisions are based on current cutting edge research in the immune system's response to the organisms that live in the intestines (the gut microbiome) and its response to what is eaten.  Therefore, I will analyze for these issues in many instances and use that as a guide to begin therapy.  If you have a serious autoimmune disease, such as ulcerative colitis or Crohn's disease.  I am not hesitant to use the most powerful therapy necessary, including anti-TNF alpha antibodies but rather than leave you on these forever once control is obtained, I will try and create a gut environment that allows de-escalation and hopefully removal of these very useful but toxic drugs.

      Similarly, chronic reflux issues are many times related to poor gut motility and gut motility is often related to what lives in it and what you eat.  Therefore, looking at these factors may solve an issue where acid blockers have been necessary for many decades.  Western medicine is wonderful for acute injury and highly active inflammatory diseases but is of very little help in the maintenance of chronic disease. 

      Lastly, I feel my role is more of a coach that a parent.  For your particular illness.  I will recommend the approach that appears to be best, but it will be up to the individual to carry that out.