Dr. Mark Detweiler, MD

Dr. Mark Detweiler, MD

Gastroenterology  ·  
Male  ·  
Age 65
(19)
Save
Dr. Mark Detweiler, MD is a gastroenterology specialist in Londonderry, NH and has been practicing for 34 years. He graduated from Pennsylvania State University College Of Medicine in 1979 and specializes in gastroenterology, holistic medicine, and more.

1B Commons Dr Unit 9A

Londonderry, NH 03053

Contact Information

(603) 818-4712

Insurance Accepted

  • Aetna
  • AvMed
  • Blue Cross Blue Shield
  • Cigna
  • First Health (Coventry Health Care)
  • Harvard Pilgrim Health Care
  • Humana
  • Medicare
  • Tricare
  • UnitedHealthCare

*Please verify this information when scheduling an appointment.

Background Check

Healthgrades does not collect malpractice information for New Hampshire
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check Dr. Detweiler's experience treating your condition or procedure

Dr. Detweiler's Top Procedures and Conditions

Treatment Frequency
Gas-Bloat Syndrome
very high
very high

Treatment Frequency

Dr. Detweiler treats Gas-Bloat Syndrome more than 94% of his peers

Dr. Detweiler treats this condition more than 94% of his peers

Diarrhea
very high
very high

Treatment Frequency

Dr. Detweiler treats Diarrhea more than 92% of his peers

Dr. Detweiler treats this condition more than 92% of his peers

Dysentery
high
high

Treatment Frequency

Dr. Detweiler treats Dysentery more than 89% of his peers

Dr. Detweiler treats this condition more than 89% of his peers

Dr. Detweiler's conditions and procedures:

Abdominal Disorders
Abdominal Pain
Abscess
Anal or Rectal Pain
Anemia
Autoimmune Diseases
Bacterial Infections of the Digestive Tract
Candida Albicans Fungus Allergy
Celiac Disease
Cirrhosis
Colitis
Colon Disorders
Constipation
Crohn's Disease
Dehydration
Diaphragmatic and-or Hiatal Hernia
Diarrhea
Diverticulitis, Intestinal
Diverticulosis, Intestinal
Duodenal Ulcer
Duodenitis
Dysentery
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
Hepatopulmonary Syndrome
Indigestion
Inflammatory Bowel Disease
Intestinal Abscess
Invasive Candidiasis
Irritable Bowel Syndrome
Lactose Intolerance
Liver Damage from Alcohol
Malnutrition
Nausea
Non-Alcoholic Fatty Liver Disease
Noninfectious Gastroenteritis and Colitis
Non-Neonatal Jaundice
Pancreatitis
Peptic Ulcer
Pyloric Stenosis
Reflux Esophagitis
Stomach and Small Intestine Cancer
Stomach Cancer
Stomach Diseases
Ulcer
Ulcerative Colitis
Unexplained Weight Loss
Viral Hepatitis
Vomiting Disorders

About Me

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.

Specialties

  • Gastroenterology
  • Applied Clinical Nutrition
  • Holistic Medicine

Board Certifications

  • Gastroenterology
  • Internal Medicine

Education

  • 1984
    University Utah Med Center
    Fellowship Hospital
    1984
  • 1981
    University Vt Med Center Hospital
    Residency Hospital
    1981
  • 1980
    University Vt Med Center Hospital
    Internship Hospital
    1980
  • 1979
    Pennsylvania State University College Of Medicine
    Medical School
    1979
  • 1975
    Lehigh University Bs Chemistry
    Undergraduate School
    1975

Awards

Dr. Detweiler's Reviews

Likelihood to recommend Dr. Detweiler

4.4

Based on 19 reviews

5 Stars
84.21052631578948%
(16)
4 Stars
0%
(0)
3 Stars
0%
(0)
2 Stars
0%
(0)
1 Star
15.789473684210526%
(3)

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Dr. Detweiler?
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Average Wait Time
  • 10 – 15 minutes
Dr. Detweiler's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. Mark Detweiler, MD
RecentHighestLowestMost Helpful
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Dr Detweiller is thorough, persistent and very knowledgeable. He takes time with his patients. I made no headway with my condition while seeing a gastroenterologist and then two different naturopaths. Treatment with Dr Detweiller has been successful! I’m thrilled that I found him. I recommend...Read More
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I've seen Dr. Detweiler probably 15 times in my life. Every time he's been the epitome of what a modern doctor should be. I would highly recommend Dr. Detweiler for anyone who is having any kind of significant digestive issue - his creative, driven approach has worked quite well for me.
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Dr. Detweiler is extremely thorough and knowledgeable specialist. He explains, in detail, test results, diagnosis, and treatment options. He does not have his own line of suppliments as a previous poster stated. He may make some supplement suggestions, but does not sell them. I have recommended...Read More
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Pushes his own supplements that he gets kickbacks on. Not willing to listen or go with what you choose for yourself. Breached my confidentiality. Not a good Dr. Has an anger management issue. See someone else.
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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...Read More
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Locations

Insurance accepted

Accepted insurance can change. Please double-check when making an appointment.

Aetna
Aetna Test HMO
Choice Plus Test POS II
AvMed
Open Access
Blue Cross Blue Shield
Blue Card Test PPO
Cigna
Cigna HMO
Cigna PPO
Great West Healthcare-Cigna PPO
First Health (Coventry Health Care)
First Health (Coventry Health Care) Test PPO
Harvard Pilgrim Health Care
Harvard Pilgrim Health Care PPO
Humana
Choice Care PPO
Medicare
Special Needs Plan SNP
Tricare
TriCare for Life
UnitedHealthCare
Choice Plus Test POS
Options PPO

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