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Dr. Mark Detweiler, MD
Gastroenterology* Age 73
Dr. Mark Detweiler, MD

Offers telehealth

Dr. Mark Detweiler, MD is a Gastroenterologist in Londonderry, NH.
Dr. Mark Detweiler, MD

Dr. Mark Detweiler, MD

Gastroenterology* Age 73
Londonderry, NH
Accepting new patients
47 years of experience

Offers telehealth

Dr. Mark Detweiler, MD is a Gastroenterologist in Londonderry, NH.
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About Dr. Mark Detweiler, MD

Dr. Detweiler graduated from Penn State University College of Medicine. Dr. Mark Detweiler, MD is a Gastroenterologist in Londonderry, NH and has 47 years experience. Dr. Detweiler has experience treating conditions like Gastrointestinal Malabsorption among other conditions at varying frequencies. Dr. Detweiler's office accepts new patients and telehealth appointments. Dr. Detweiler accepts multiple insurance plans.

Compare with other Gastroenterologists

Compare Dr. Detweiler with our nearby Gastroenterologists at Melrosewakefield Hospital
These providers are on the medical staff of Melrosewakefield Hospital
These providers are on the medical staff of Melrosewakefield Hospital.
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Experience Check

Enter a condition or procedure
Gastrointestinal Malabsorption
Manometry
Flexible Sigmoidoscopy
Gastrointestinal Malabsorption
Manometry
Flexible Sigmoidoscopy
Rigid Proctosigmoidoscopy
Intestinal Malabsorption Carbohydrate
Lactose Intolerance
Infectious Diarrheal Disease
Dysentery
Enteritis
Celiac Disease
Diarrhea
  • View other providers who treat Diarrhea
Abdominal Pain
Heartburn
Gas-Bloat Syndrome
Vitamin_Deficiency
Viral Enteritis
Dysphagia
Constipation
Unexplained Weight Loss
Abdominal Disorders
Abscess
  • View other providers who treat Abscess
Alcoholic Fatty Liver
Anal or Rectal Pain
Anemia
  • View other providers who treat Anemia
Autoimmune Diseases
Autoimmune Hepatitis
Bacterial Infections of the Digestive Tract
Candida Albicans Fungus Allergy
Cirrhosis
Colitis
  • View other providers who treat Colitis
Colon Disorders
Crohn's Disease
Diaphragmatic and Hiatal Hernia
Diffuse Esophageal Spasm
Duodenal Ulcer
Duodenitis
Ehlers-Danlos Syndrome
Esophageal Achalasia and Cardiospasm
Esophageal Diseases
Esophageal Motility Disorders
Esophageal Ulcer
Esophagitis
Familial Adenomatous Polyposis
Food Allergy
Fungal Infections
Gallstones
Gastric Ulcer
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastrointestinal Diseases
Gastroparesis
Gluten Sensitivity
Hemochromatosis
Hemorrhoids
Hepatic Encephalopathy
Hepatitis
Hepatitis C
Hereditary Amyloidosis
Hiatal Hernia
Indigestion
Inflammatory Bowel Disease
Intestinal Diverticulitis
Intestinal Diverticulosis
Intestinal Ulcer
Invasive Candidiasis
Irritable Bowel Syndrome
Liver Damage from Alcohol
Long COVID Disorder
Malnutrition
Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD)
Nausea
  • View other providers who treat Nausea
Non-Neonatal Jaundice
Noninfectious Gastroenteritis and Colitis
Pancreatitis
Peptic Ulcer
Pernicious Anemia
Pouchitis
Proctoptosis
Pyloric Stenosis
Rectal Prolapse
Retroperitoneum Cancer
Stomach and Small Intestine Cancer
Stomach Diseases
Ulcer
  • View other providers who treat Ulcer
Ulcerative Colitis
Viral Hepatitis
Viral Infection
Vitamin B12 Anemia
Vomiting Disorders
Colon Cancer Screening
Gallbladder Scan
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Function Test
pH Probe
  • View other providers who treat pH Probe
Screening Colonoscopy
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Wireless pH Testing

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • Harvard Pilgrim Health Care PPO
  • Cigna
  • Coventry Health Care
  • Medicare
  • AvMed
  • Humana
  • Gold Pathway X (Off Exchange)-NH HMO
  • Aetna
  • Curative EPO
    Curative PPO Plus
    Curative PPO
  • Tricare
  • United Healthcare
  • Blue Cross and Blue Shield
  • First Health (Coventry Health Care)
  • HealthyBlue 2.0
  • Tufts Health Plans

Where Dr. Mark Detweiler, MD Sees Patients

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Telehealth Options
This provider has not specified a telehealth appointment method. Would you still like to make an appointment with Dr. Detweiler?
Call now to make an appointment
(603) 818-4712

Meet Dr. Mark Detweiler, MD

Specialties*
Integrative Medicine
Holistic Medicine
Gastroenterology
Applied Clinical Nutrition
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Detweiler communicate via email?
1 user said yes.
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No
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Does Dr. Detweiler offer telehealth services or virtual visits?
1 user said yes.
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(1)
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Does Dr. Detweiler offer an online patient portal?
1 user said yes.
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Does Dr. Detweiler have free onsite parking?
1 user said yes.
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Does Dr. Detweiler offer weekend visits?
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No
(2)
Does Dr. Detweiler offer evening visits?
1 user said yes.
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No
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Does Dr. Detweiler specialize in working with children or adolescents?
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Does Dr. Detweiler specialize in working with seniors?
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Does Dr. Detweiler specialize in couples therapy?
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Does Dr. Detweiler specialize in working with LGBTQ+ community?
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Does Dr. Detweiler accept insurance?
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FAQs About Dr. Detweiler's Practice

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Mark Detweiler, MD. To arrange an appointment, call the number on Dr. Detweiler's profile.

Dr. Detweiler frequently treats the following conditions: Gastrointestinal Malabsorption. See more on Sharecare.

Dr. Mark Detweiler, MD is affiliated with Parkland Medical Center, Southern NH Medical Center, Cooley Dickinson Hospital, Concord Hospital-Laconia, Portsmouth Regional Hospital, Morton Hospital, Mary Hitchcock Memorial Hospital, Concord Hospital, Elliot Hospital, Monadnock Community Hospital, St. Joseph Hospital and Winchester Hospital.

Training & Medical Education
Medical Education
  • Penn State University College of Medicine
    1979
Medical Education
Internship
  • University Vt Medical Center Hospital
    1980
Internship
Fellowship Hospital
  • University Utah Medical Center
    1984
Fellowship Hospital

Hospitals Where Dr. Mark Detweiler, MD Practices

  • Parkland Medical Center

    1 Parkland Dr, Derry, NH

  • Southern NH Medical Center

    8 Prospect St, Nashua, NH

  • Cooley Dickinson Hospital

    30 Locust St, Northampton, MA

  • Concord Hospital-Laconia

    80 Highland St, Laconia, NH

  • Portsmouth Regional Hospital

    333 Borthwick Ave, Portsmouth, NH

  • Morton Hospital

    88 Washington St, Taunton, MA

  • Mary Hitchcock Memorial Hospital

    1 Medical Center Dr, Lebanon, NH

  • Concord Hospital

    250 Pleasant St, Concord, NH

  • Elliot Hospital

    1 Elliot Way, Manchester, NH

  • Monadnock Community Hospital

    452 Old Street Rd, Peterborough, NH

  • St. Joseph Hospital

    172 Kinsley St, Nashua, NH

  • Winchester Hospital

    41 Highland Ave, Winchester, MA

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