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Dr. Christopher Dainiak, MD
Gastroenterology* Age 55
Dr. Christopher Dainiak, MD
5.0 (1 Ratings)

Offers telehealth

Dr. Christopher Dainiak, MD is a Gastroenterologist in Bedford, NH.
Dr. Christopher Dainiak, MD
5.0 (1 Ratings)

Dr. Christopher Dainiak, MD

Gastroenterology* Age 55
Bedford, NH
Accepting new patients
28 years of experience

Offers telehealth

Dr. Christopher Dainiak, MD is a Gastroenterologist in Bedford, NH.

About Dr. Christopher Dainiak, MD

Dr. Dainiak graduated from University of Connecticut School of Medicine in 1998 and completed a residency at Yale New Haven Hospital. Dr. Christopher Dainiak, MD is a Gastroenterologist in Bedford, NH and has 28 years experience. Dr. Dainiak currently practices at Bedford Gastroenterology and is affiliated with Catholic Medical Center, Androscoggin Valley Hospital, Elliot Hospital and Upper Connecticut Valley Hospital. Dr. Dainiak has experience treating conditions like Celiac Disease and Constipation among other conditions at varying frequencies. Dr. Dainiak's office accepts new patients and telehealth appointments. Dr. Dainiak is board certified in Gastroenterology and accepts multiple insurance plans.

Experience Check

Enter a condition or procedure
Celiac Disease
Constipation
Gastritis
Celiac Disease
Constipation
Gastritis
Upper Digestive Tract Cancer
Gastroesophageal Reflux Disease (GERD)
Eosinophilic Esophagitis
Esophagitis
Intestinal Diverticulitis
Gastrointestinal Malabsorption
Intestinal Diverticulosis
Dysphagia
Inflammatory Bowel Disease
Flexible Sigmoidoscopy
Rigid Proctosigmoidoscopy
Manometry
Chronic Gastritis
Reflux Esophagitis
Crohn's Disease
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Noninfectious Gastroenteritis and Colitis
Gastrointestinal Bleeding
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Duodenal Polypectomy
Gastroptosis
Familial Adenomatous Polyposis
Colorectal Polyp
Endoscopy
Barrett's Esophagus
Unexplained Weight Loss
Esophageal Ulcer
Infectious Diarrheal Disease
Abdominal Pain
Gas-Bloat Syndrome
Nausea
  • View other providers who treat Nausea
Enteritis
Retroperitoneum Cancer
Diarrhea
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Indigestion
Diffuse Esophageal Spasm
Colonoscopy
Duodenitis
Diaphragmatic and Hiatal Hernia
Hemorrhoids
Heartburn
Intestinal Ulcer
Irritable Bowel Syndrome
Congenital Anomaly Intestine
Gastroparesis
Pancreatitis
Anal or Rectal Pain
Anemia
  • View other providers who treat Anemia
Ulcerative Colitis
Acute Gastritis
Duodenal Ulcer
Gastric Ulcer
Vitamin_Deficiency
Esophageal Motility Disorders
Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD)
Esophageal Achalasia and Cardiospasm
Liver Damage from Alcohol
Vomiting Disorders
Gallstones
Intestinal Obstruction
Alcoholic Gastritis
Abdominal Disorders
Alcoholic Cirrhosis
All Types of Food Poisoning
Ascites
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Autoimmune Diseases
Barretts Esophagus with Dysplasia
Benign Neoplasm of the Digestive System
Benign Tumor
Biliary Cirrhosis
Blood Disorders
Bowel Strangulation
Cancer
  • View other providers who treat Cancer
Cholecystitis and Gallstones
Chronic Anal Fissure
Cirrhosis
Colon Cancer
Colorectal Cancer
Congenital Achalasia
Congenital Anomaly Esophagus
Dehydration
Diverticulitis
Diverticulosis
Duodenal Cancer
Dysentery
Eosinophilic Gastritis
Esophageal Cancer
Esophageal Diseases
Esophageal Diverticulum
Esophageal Varices
Food Allergy
Food Poisoning
Gastrointestinal Diseases
Gastrojejunal Ulcer
Hemochromatosis
Hepatitis A
Hepatitis B
Hepatitis B - Immune Response
Hepatitis C
Hernia
  • View other providers who treat Hernia
Hiatal Hernia
Hypokalemia
Ileus
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Intestinal Ischemia
Intestinal Prolapse
Ischemic Colitis
Lactose Intolerance
Mallory-Weiss Syndrome
Malnutrition
Neoplasm of Gastrointestinal Tract
Non-Neonatal Jaundice
Pelvic Abscess
Peptic Ulcer
Pouchitis
Primary Biliary Cholangitis
Proctoptosis
Pyloric Stenosis
Rectal Prolapse
Rectal Ulcer
Salmonella Food Poisoning
Sclerosing Mesenteritis
Splenomegaly
Stomach Diseases
Thiamin Deficiency
Ulcer
  • View other providers who treat Ulcer
Vascular Insufficiency of Intestines
Viral Enteritis
Viral Hepatitis
Vitamin B12 Anemia
Anoscopy
  • View other providers who treat Anoscopy
Colon Cancer Screening
Colorectal Cancer Screening
ERCP (Endoscopic Retrograde Cholangiopancreatography)
Gallbladder Scan
Gastroenterology Procedures
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Biopsy
Liver Function Test
pH Probe
  • View other providers who treat pH Probe
Proctosigmoidoscopy
Screening Colonoscopy
Sigmoidoscopy
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Wireless pH Testing

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • Elect Choice (Open Access) EPO
    Choice Plus POS II
    Select
    Aetna HMO
    Open Choice PPO
    Managed Choice (Open Access) POS
    Premier Care Network Plus - Innovation Health
  • Harvard Pilgrim Health Care HMO
  • Navigate Plus POS
    Options PPO
    Choice Plus POS
  • BlueCard PPO
  • HealthyBlue Advantage
  • Tufts PPO
  • Pathway X Enhanced/Ind Direct Access NH POS
    Preferred Blue Network-NH PPO
    Blue Choice-ME PPO
  • Blue Cross Blue Shield of Massachusetts PPO
    Preferred Blue v5 PPO
  • Cigna HMO
    Cigna PPO
    Open Access Plus
  • First Health (Coventry Health Care) PPO

Where Dr. Christopher Dainiak, MD Sees Patients

  1. 1 Bedford Gastroenterology
    9 Washington Pl Ste 201, Bedford, NH 03110
  2. 2 Androscoggin Valley Hospital
    7 Page Hill Rd, Berlin, NH 03570
  3. 3 Androscoggin Valley Hospital Inc
    59 Page Hill Rd, Berlin, NH 03570
  4. 4 Bedford Ambulatory Surgical Center
    11 Washington Pl, Bedford, NH 03110
  5. 5 Office
    6 Tsienneto Rd Ste 301, Derry, NH 03038

What Patients Say

Likelihood to recommend Dr. Dainiak
5.0
Based on 1 Reviews
5 Stars (1)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (0)

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Patient Reviews
Jul 29, 2025
Dr. Dainiak is friendly, professional and really listens to what you have to say. He doesn’t make me feel like he’s rushing to get on to the next patient. He makes me feel like what I have to say really matters.
— Jul 29, 2025
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Telehealth Options
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(603) 367-3064

Meet Dr. Christopher Dainiak, MD

Specialties*
Gastroenterology
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. Dainiak communicate via email?
6 users said yes.
Yes
(6)
No
(0)
Does Dr. Dainiak offer telehealth services or virtual visits?
4 users said yes.
Yes
(4)
No
(2)
Does Dr. Dainiak offer an online patient portal?
5 users said yes.
Yes
(5)
No
(2)
Does Dr. Dainiak have free onsite parking?
15 users said yes.
Yes
(15)
No
(0)
Does Dr. Dainiak offer weekend visits?
No users said yes.
Yes
(0)
No
(7)
Does Dr. Dainiak offer evening visits?
2 users said yes.
Yes
(2)
No
(5)
Does Dr. Dainiak specialize in working with children or adolescents?
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(0)
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Does Dr. Dainiak specialize in working with seniors?
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Does Dr. Dainiak specialize in couples therapy?
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Does Dr. Dainiak specialize in working with LGBTQ+ community?
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FAQs About Dr. Dainiak'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. Christopher Dainiak, MD. To arrange an appointment, call the number on Dr. Dainiak's profile.

Dr. Dainiak frequently treats the following conditions: Celiac Disease and Constipation. See more on Sharecare.

Dr. Christopher Dainiak, MD is affiliated with Catholic Medical Center, Androscoggin Valley Hospital, Elliot Hospital and Upper Connecticut Valley Hospital.

Yes, Dr. Christopher Dainiak, MD holds board certification in Gastroenterology.

Training & Medical Education
Medical Education
  • University of Connecticut School of Medicine
    1998
Medical Education
Board Certifications
  • Gastroenterology
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.
Internship
  • Maine Medical Center
    2000
Internship
Residency Hospital
  • Yale New Haven Hospital
    2003
Residency Hospital
Fellowship Hospital
  • Norwalk Hospital
    2006
Fellowship Hospital

Hospitals Where Dr. Christopher Dainiak, MD Practices

  • Catholic Medical Center

    100 McGregor St, Manchester, NH

  • Androscoggin Valley Hospital

    59 Page Hill Rd, Berlin, NH

  • Elliot Hospital

    1 Elliot Way, Manchester, NH

  • Upper Connecticut Valley Hospital

    181 Corliss Ln, Colebrook, NH

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