About Nicholas M. Szary, MD, MS

Dr. Nicholas M. Szary is now accepting new patients. Dr. Szary is a Board-Certified Gastroenterologist and Advanced Endoscopist with interest in all aspects of gastroenterology and a special focus on solving complex bowel disorders and diseases of the liver and pancreas. In addition to outpatient clinical care, Dr. Szary also offers gastroenterology specialty services at Inova Fairfax and Inova Fair Oaks Hospitals. 

Dr. Szary received medical training at the University of Missouri and Georgetown University where he devoted an extra year performing advanced endoscopic procedures to help identify and treat esophageal cancer, studying pancreatic and liver (biliary) disorders and well as solving multifaceted gastrointestinal problems.

Dr. Szary performs basic gastroenterological procedures such as endoscopy and colonoscopy as well as advanced procedures such as endoscopic ultrasound (EUS), endoscopic retrograde cholangiopancreatography (ERCP), endoscopic mucosal resection (EMR) and the Spyglass procedure. 

He holds a Master’s Degree in Molecular Biology and Biochemistry which allowed him to research basic mechanisms of gastrointestinal disease. During his training, Dr. Szary received a Presidential Award from the American Association for the Study of Liver Diseases for his work involving non-alcoholic liver disease. He authored multiple research articles in clinical and basic sciences from topics ranging from complications of ERCP to therapy regarding inflammatory bowel disease.

He brings over 15 years of expertise to Gastro Health (formerly GANV) using a patient-centered care approach to improve clinical outcomes and overall patient well being. 

Dr. Szary is also fluent in Polish.

Conditions & Procedures

  • Abdominal Pain
  • Acid Reflux & GERD
  • Anal Fissures
  • Anal Fistulas
  • Anemia
  • Barrett's Esophagus
  • Biliary Disease
  • Celiac Disease
  • Cirrhosis
  • Colitis
  • Colon Cancer Screening
  • Colon Diseases & Polyps
  • Colorectal (Colon) Cancer
  • Constipation
  • Crohn’s & Ulcerative Colitis
  • Diarrhea
  • Diverticulitis
  • Dyspepsia
  • Dysphagia
  • Esophageal Disease
  • Fecal Incontinence
  • Gallbladder Disease
  • Gastritis
  • Gastrointestinal Bleeding
  • Gastroparesis
  • H. Pylori
  • Hemorrhoids
  • Hepatitis
  • Indigestion
  • Inflammatory Bowel Disease
  • Irritable Bowel Syndrome
  • Liver Disease
  • Obesity
  • Pancreatic Disease & Pancreatitis
  • Peptic Ulcer Disease
  • Swallowing Disorders
  • Anoscopy
  • Capsule Endoscopy (Pill Cam)
  • Colonoscopy (Screening & Diagnostic)
  • EGD (Upper Endoscopy)
  • Endoscopic Ultrasound (EUS)
  • Enteroscopy (Small & Large Bowel)
  • ERCP & Stents
  • Esophageal & Colonic Stenting
  • Esophageal Ablation
  • Esophageal Dilation
  • Esophageal pH Testing (Bravo)
  • Esophageal pH Testing (Breath Test)
  • Flexible Sigmoidoscopy
  • PEG Placement

Office Locations

Primary Location

Picture of the Fairfax Office


3028 Javier Rd.
Suite 300
Fairfax, VA 22031

Phone: 703-698-8960
Fax: 703-828-0961

Additional Locations

Fair Oaks

3700 Joseph Siewick Dr.
Suite 308
Fairfax, VA 22033

Phone: 703-698-8960
Fax: 703-828-0961


Procedure Locations

Having a procedure? It may not always be in the same location where you consulted with your doctor. Check with your doctor to make sure you’re headed to the right place.



Saba School of Medicine


University of Missouri Columbia School of Medicine


University of Missouri Columbia School of Medicine


Georgetown University School of Medicine


University of Missouri Columbia School of Medicine

Professional Highlights


Board Certified in Gastroenterology

Awards & Recognitions

  • Presidential Award from the American Association for the Study of Liver Diseases

Professional Memberships

  • Board Certified Gastroenterologist and Advanced Endoscopist