About me
Dr. Mattar is the director of the IBD Center, with expertise in diagnosing and treating inflammatory bowel diseases (IBD), Crohn's disease, colitis, and celiac disease. Dr. Mattar has a particular interest in IBD therapeutics, disease monitoring, and colorectal cancer prevention. He is active in clinical research and medical education for trainees, the community, and patients. He is certified in intestinal ultrasound (IUS), which he applies to advancing IBD patient care and research. Dr. Mattar directs the IUS program at MedStar Health, which is the only center in the Mid-Atlantic outside of New York that serves as a certified training site.
Dr. Mattar sees patients in his gastroenterology practice in the IBD Center at MedStar Georgetown University Hospital. He embraces a collaborative approach to patient care as part of a multidisciplinary treatment team that includes dietitians and other key providers. To learn more about IBD, click here. He is also active in clinical trials for IBD therapies.
Dr. Mattar teaches at MedStar Georgetown University Hospital as Professor of Medicine, and is the director of the Fellowship Training Program in Gastroenterology. He is also an active member of the Crohn's and Colitis Foundation D.C. Metro chapter mission committee, the Professional Education National Scientific Advisory Committee and the Northeast Regional MyIBD Learning Planning Committee.
As the Quality Improvement Officer for the Division of Gastroenterology, Dr. Mattar has been recognized by the American Gastroenterological Association's Bridges to Excellence Program for his commitment to providing comprehensive quality care for patients with IBD.
Dr. Mattar enjoys family time with his wife and son, including fishing in local ponds and creeks. He especially enjoys exploring the Washington museums and playgrounds with his young son. He also enjoys checking out the local cafes and creating his own latte art.
Patients and practitioners can connect with Dr. Mattar on Twitter (@gastrodocmattar) and follow his tweets on new developments in gastroenterology.
The mission of the training program he directs states, "To create an environment where compassionate medical trainees can learn to provide exceptional quality care to the patients we serve." He prides himself in treated his patients as he would his own family.
Clinical areas of focus
- Crohn's Disease
- Inflammatory Bowel Disease
- Ulcerative Colitis
Conditions and procedures
Procedures I perform
- Bedside Intestinal Ultrasound For Inflammatory Bowel Disease
- Colonoscopy
- Colonoscopy With Biopsy
- Colonoscopy With Chromoendoscopy
- Colonoscopy With Dilation
- EGD With Biopsy
- Esophagogastroduodenoscopy With Biopsy
- Pouchoscopy
- Sigmoidoscopy With Biopsy
- Small Intestinal Endoscopy With Biopsy
- Upper Gi Endoscopy
- Upper Gi Endoscopy With Biopsy
Practice locations
Distance from Change Location Enter your Location
3800 Reservoir Rd NW
Main Bldg 2nd Fl
Washington, DC, 20007
Insurance
This list represents the major payors accepted by MedStar Health. NOTE: Payor contracts change and not all plans associated with a payor may be covered. Payors may offer multiple plans. If you have a question related to your insurance, please contact your insurance plan directly. Contact information is located on your health insurance ID card. *Denotes limited participation. Specific providers and practices may NOT be participating. Please contact your insurance plan directly.
-
List of insurance plans we accept
- Aetna
- CareFirst BlueCross BlueShield of Maryland
- Cigna Health Care
- Kaiser Permanente*
- MedStar Select (Administered by CareFirst)
- United HealthCare
- Aetna
- CareFirst BlueCross BlueShield of Maryland
- Healthspring
- Humana
- Medicare & Railroad Medicare
- United HealthCare
- Aetna Better Health of Maryland *
- Medical Assistance/Medicaid
- MedStar Family Choice MD
- Priority Partners *
- United HealthCare Community Health Plan MD
- Wellpoint MD
- AmeriHealth Caritas
- Health Services For Children With Special Needs (HSCSN)
- Medical Assistance/Medicaid
- MedStar Family Choice DC
- Johns Hopkins Employer Health Programs *
- Johns Hopkins US Family Health Plan *
- MultiPlan
- Private Healthcare Systems
- Tricare/Humana Military
- VA Community Care Network (VACCN)
Videos
Education
Board Certification: American Board of Internal Medicine, Gastroenterology
Fellowship: Georgetown University School of Medicine GME (2010)
Residency: UCLA-Olive View Medical Center-GME (2007)
Medical School: Virginia Commonwealth University Medical School (2004)
Awards
- Fellow of the Crohn’s & Colitis Foundation (FCCF), 2024
Northern Virginia Top Doctor, 2021
Washingtonian Top Doctor Award since 2021
Fellow, American Gastroenterology Association, 2020
Fellow, American College of Gastroenterology, 2018
Gastroenterology Fellows Award for Excellence in Teaching, 2015
American Gastroenterological Association's Bridges to Excellence Program, 2014
Commitment to Patient Care, VA Medical Center, 2012
