Gravesend 260 Ave X
Brooklyn, NY 11223
(718) 336-8855
Flatbush 770 Flatbush Ave
Brooklyn, NY 11226
(347) 627-3988
Downtown Brooklyn 200 Livingston Street
Brooklyn, NY 11201
(718) 522-3399
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Alexander Brun, MD – Brooklyn Gastroenterologist

Alexander Brun, MD | gastroenterologist Brooklyn

Alexander Brun, MD
Locations in Brooklyn
Sheepshead Bay, Flatbush, Downtown

Alexander Brun, MD

About Brooklyn Gastroenterologist Dr. Alexander Brun

Alexander Brun, MD, is a board-certified gastroenterologist with extensive experience. Gastroenterology deals with the conditions and symptoms of your digestive system. With state-of-the-art diagnostic tools, Dr. Brun can tell what you’re suffering from so he can treat it.

Common digestive tract ailments include:

  • Irritable bowel syndrome (IBS)
  • Acid reflux disease
  • Hemorrhoids
  • Abdominal pain
  • Constipation
  • Celiac disease
  • Inflammatory bowel disease (IBD)
  • Hepatitis

Focusing on Your Health

In collaboration with his capable colleagues at the Century Medical and Dental Center, Dr. Brun performs a number of treatment procedures. He uses his skills to ease your distress and cure the cause of your symptoms. Some of the treatments he recommends include:

  • Transfusion of packed cells
  • Esophagus and stomach biopsy
  • Liver biopsy
  • Endoscopic retrograde cholangiopancreatography (ERCP)
  • Small bowel endoscopy
  • Double-balloon enteroscopy
  • Endoscopic ultrasound
  • Sigmoidoscopy
  • Colonoscopy

Some of these procedures — like the biopsy and colonoscopy — are preventative or diagnostic tests. A colonoscopy, for example, is a colon cancer screening. Given the myriad conditions that can affect your digestive tract, it pays to know an expert you can count on: Dr. Brun.

A Solid Foundation in Medicine

Dr. Brun received his Doctor of Medicine (MD) degree in 2005. He continued studying for a Doctor of Osteopath (DO) degree, which he earned from Sunny Downstate College of Medicine. He completed his fellowship residency in gastroenterology from Hofstra North Shore – LIJ School of Medicine. He completed an internal medicine residency program from the Rutgers-Robert Wood Johnson Medical School.

A researcher and instructor, he’s been published in internationally recognized journals. He’s even contributed to medical textbooks on topics ranging from gastrointestinal bleeding to neonatal gastroenterology. Fluent in both English and Russian, Dr. Brun is dedicated to providing quality healthcare at the Century Medical and Dental Center. Schedule a consultation today.


Century Medical and Dental Center, an Article 28 Multi-Specialty Clinic, has been opened since 2000. For your convenience, you may visit any of our three Brooklyn locations. The doctors and staff speak multiple languages. All offices have convenient hours of operations:

  • Monday to Friday: 8:00 am to 9:00 pm
  • Saturday and Sunday: 8:00 am to 6:00 pm