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Dr. Matthew Grunwald, MD
Gastroenterology* Age 45
Dr. Matthew Grunwald, MD

Offers telehealth

Dr. Matthew Grunwald, MD is a Gastroenterologist in Portland, ME.
Dr. Matthew Grunwald, MD

Dr. Matthew Grunwald, MD

Gastroenterology* Age 45
Portland, ME
Accepting new patients
11 years of experience

Offers telehealth

Dr. Matthew Grunwald, MD is a Gastroenterologist in Portland, ME.
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About Dr. Matthew Grunwald, MD

Dr. Grunwald graduated from State University of New York / Health Science Center At Stony Brook. Dr. Matthew Grunwald, MD is a Gastroenterologist in Portland, ME and has 11 years experience. Dr. Grunwald currently practices at Portland Gastroenterology Associates P.A. and is affiliated with Maine Medical Center. Dr. Grunwald has experience treating conditions like Intestinal Diverticulosis, Diaphragmatic and Hiatal Hernia, Gastroptosis, Colorectal Polyp, Reflux Esophagitis, Esophagitis and Esophageal Motility Disorders among other conditions at varying frequencies. Dr. Grunwald's office accepts new patients and telehealth appointments. Dr. Grunwald is board certified in Gastroenterology and accepts multiple insurance plans.

Offers Telehealth

This provider offers telehealth appointments. Call the office to schedule.

Experience Check

Enter a condition or procedure
Intestinal Diverticulosis
Diaphragmatic and Hiatal Hernia
Gastroptosis
Intestinal Diverticulosis
Diaphragmatic and Hiatal Hernia
Gastroptosis
Colorectal Polyp
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Reflux Esophagitis
Esophagitis
Esophageal Motility Disorders
Colonoscopy
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Gastritis
Constipation
Noninfectious Gastroenteritis and Colitis
Gastroesophageal Reflux Disease (GERD)
Duodenitis
Cirrhosis
Flexible Sigmoidoscopy
Rigid Proctosigmoidoscopy
Manometry
Gastrointestinal Bleeding
Splenomegaly
Hemorrhoids
Gastric Ulcer
Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD)
Endoscopy
Intestinal Ulcer
Barrett's Esophagus
Inflammatory Bowel Disease
Duodenal Polypectomy
Celiac Disease
Dysphagia
Anal or Rectal Pain
Abdominal Pain
Esophageal Varices
Nausea
  • View other providers who treat Nausea
Esophageal Ulcer
Anemia
  • View other providers who treat Anemia
Diarrhea
  • View other providers who treat Diarrhea
Gastrointestinal Malabsorption
Liver Damage from Alcohol
Crohn's Disease
Duodenal Ulcer
Gas-Bloat Syndrome
Alcoholic Cirrhosis
Intestinal Diverticulitis
Sigmoidoscopy
Irritable Bowel Syndrome
Hepatic Fibrosis
Ulcerative Colitis
Upper Digestive Tract Cancer
Unexplained Weight Loss
Vomiting Disorders
Heartburn
Chronic Gastritis
Gallstones
Liver Damage
Autoimmune Hepatitis
Eosinophilic Esophagitis
Vitamin_Deficiency
Acute Gastritis
Alcoholic Fatty Liver
Alcoholic Hepatic Failure
Alcoholic Hepatitis
Ascites
  • View other providers who treat Ascites
Bile Duct Obstruction
Biliary Cirrhosis
Boerhaave's Syndrome
Bowel Strangulation
Cholangitis
Colon Cancer
Congenital Anomaly Esophagus
Congenital Anomaly Intestine
Copper Metabolism Disorders
Cyclical Vomiting
Dehydration
Diffuse Esophageal Spasm
Duodenal Cancer
Dysentery
Enteritis
Esophageal Achalasia and Cardiospasm
Esophageal Atresia Without Fistula
Esophageal Diverticulum
Familial Adenomatous Polyposis
Folate Deficiency Anemia
Gastrojejunal Ulcer
Gastroparesis
Hemochromatosis
Hepatitis B
Hepatitis C
Hepatopulmonary Syndrome
Hirschsprung's Disease
Hypokalemia
Ileus
  • View other providers who treat Ileus
Indigestion
Infectious Diarrheal Disease
Intestinal Obstruction
Intestinal Prolapse
Lactose Intolerance
Mallory-Weiss Syndrome
Malnutrition
Neoplasm of Gastrointestinal Tract
Pancreatic Pseudocyst
Pancreatitis
Peptic Ulcer
Pernicious Anemia
Pouchitis
Primary Biliary Cholangitis
Primary Sclerosing Cholangitis
Proctoptosis
Pyloric Stenosis
Rectal Prolapse
Rectal Ulcer
Retroperitoneum Cancer
Sclerosing Mesenteritis
Splenic Infarct
Viral Enteritis
Vitamin B12 Anemia
Liver Biopsy

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • Blue Cross Blue Shield of Massachusetts PPO
  • Choice Plus POS II
    Aetna
    Elect Choice (Open Access) EPO
    Select
    Premier Care Network Plus - Innovation Health
    Open Choice PPO
    Managed Choice (Open Access) POS
  • First Health (Coventry Health Care) PPO
  • Harvard Pilgrim Health Care PPO
    Harvard Pilgrim Health Care HMO
    Maines Choice - Preferred HMO
  • Curative PPO
    Curative EPO
    Curative PPO Plus
  • Blue Card PPO
  • Blue Choice-ME PPO
    Maine HMO
    Pathway-ME HMO
    Pathway Enhanced-ME POS
  • Options PPO
    Navigate HMO
    Navigate POS
    Choice Plus POS
    Medica Choice
    Nexus Open Access

Where Dr. Matthew Grunwald, MD Sees Patients

  1. 1 Portland Gastroenterology Associates P.A.
    161 Marginal Way, Portland, ME 04101
  2. 2 Mainehealth Adult Specialty Care
    48 Gilman St, Portland, ME 04102
  3. 3 Mainehealth Maine Medical Center Portland
    22 Bramhall St, Portland, ME 04102

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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. Grunwald?
Call now to make an appointment
(207) 773-7964

Meet Dr. Matthew Grunwald, MD

Specialties*
Internal Medicine
Transplant Hepatology
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
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FAQs About Dr. Grunwald'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. Matthew Grunwald, MD. To arrange an appointment, call the number on Dr. Grunwald's profile.

Dr. Grunwald frequently treats the following conditions: Intestinal Diverticulosis, Diaphragmatic and Hiatal Hernia, Gastroptosis, Colorectal Polyp, Reflux Esophagitis, Esophagitis and Esophageal Motility Disorders. See more on Sharecare.

Dr. Matthew Grunwald, MD is affiliated with Maine Medical Center.

Yes, Dr. Matthew Grunwald, MD holds board certification in Gastroenterology, Internal Medicine and Transplant Hepatology.

Training & Medical Education
Medical Education
  • State University of New York / Health Science Center At Stony Brook
    2015
Medical Education
Board Certifications
  • Gastroenterology, Internal Medicine and Transplant Hepatology
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.

Hospitals Where Dr. Matthew Grunwald, MD Practices

  • Maine Medical Center

    22 Bramhall St, Portland, ME

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