Profile Photo of Dr. Mark Dreyer, MD

Dr. Mark Dreyer, MD Get a Free Background Report on Dr. Mark Dreyer, MD. Malpractice, medical malpractice, sanctions, misconduct, credentials, and penalty or negligence information.

Specializes in Gastroenterology • Male • Age 64

17000 W North Ave Ste 103E
Brookfield, WI 53005
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Dr. Dreyer's Experience


  • Gastroenterology

Board Certifications

  • Gastroenterology
  • Internal Medicine
  • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
  • Endoscopy (Esophagus, Stomach, Small Intestine)
  • ERCP (Endoscopic Retrograde Cholangiopancreatography)
  • Hemorrhoidectomy or Excision of Anal Tags
  • Liver Biopsy
  • Abdominal Pain
  • Anemia
  • Barrett's Esophagus
  • Benign Neoplasm of the Digestive System
  • Biliary Atresia
  • Cholecystitis and Gallstones
  • Cirrhosis
  • Colorectal Cancer
  • Crohn's Disease (Regional Enteritis)
  • Diaphragmatic and-or Hiatal Hernia
  • Diverticulitis, Intestinal
  • Diverticulosis, Intestinal
  • Diverticulum of Esophagus
  • Duodenal Ulcer
  • Duodenitis
  • Dysphagia
  • Enteritis
  • Esophageal Achalasia and Cardiospasm
  • Esophageal Cancer
  • Esophageal Ulcer
  • Esophageal Varices
  • Esophagitis
  • Gas-Bloat Syndrome
  • Gastric Ulcer
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Bleeding
  • Gastrointestinal Malabsorption
  • Gastroparesis
  • Heartburn
  • Hemochromatosis
  • Hemorrhoids
  • Hepatitis C
  • Hepatorenal Syndrome
  • Ileus
  • Indigestion
  • Intestinal Obstruction
  • Irritable Bowel Syndrome
  • Malnutrition
  • Non-Neonatal Jaundice
  • Pancreatitis
  • Peptic Ulcer
  • Pyloric Stenosis
  • Small Intestine Cancer
  • Stomach and Small Intestine Cancer
  • Stomach Cancer
  • Ulcerative Colitis
  • Unexplained Weight Loss
  • Vascular Insufficiency of Intestines
  • Vomiting Disorders

Background Check for Dr. Dreyer

Malpractice Claims not available

  • Healthgrades does not collect malpractice information for Wisconsin.
  • 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.

Awards & Recognitions


Education & Training

Medical School

University Of Wisconsin Medical School
Graduated in 1976

Residency Hospital

Northwestern Mem Hospital

Languages Spoken by Dr. Dreyer & Staff

  • English
  • Spanish

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