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Dr. Mark Mattar, MD
7 years of experience
Video profile
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. Mark Mattar, Gastroenterologist is Excellent. Dr. Mattar has been reviewed by 3 patients who have provided 2 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Mark Mattar, MD is board certified in Internal Medicine and Gastroenterology.

  • He has special expertise in 10 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Colon Cancer
  • Constipation
  • Gastrointestinal Cancer
  • Hepatitis
  • Hepatitis C
  • Inflammatory Bowel Diseases (IBD)
  • Irritable Bowel Syndrome (IBS)
  • Probiotics
  • Ulcerative Colitis

Education & Awards

Dr. Mattar graduated from Virginia Commonwealth University, Richmond. He has 1 awards.

Bridges to Excellence Recognition
IBD Care Recognition (2014 - 2015)
Level I


Dr. Mattar has 2 hospital affiliations:

  • Inova Mt Vernon Hospital 
  • Georgetown University Hospital 


  • Spanish
  • Arabic

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Additional Information
Dr. Mark Mattar MD is a male Internist, has 7 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. Mark Mattar practice?
Dr. Mark Mattar has 4 office locations.
Dr. Mark Mattar practices Internal Medicine and Gastroenterology near Alexandria, VA.
Additional practice locations include: Lorton, VA and Oxon Hill, MD.
See Alexandria Internists and Alexandria Gastroenterologists.