Dr. Mark C. Mattar, MD
Gastroenterologist
407.6 mi · 3800 Reservoir Rd NW, 2 Main Bldg, Washington, DC 20007
At a glance
4.87 stars (15 reviews)
97% are satisfied with this provider ·
Accepts 43 insurances
Aetna, BlueCross BlueShield, Cigna, Medicare, UnitedHealthcare, more+ ·
Has 20+ years of experience
Graduated from Virginia Commonwealth University
Works at MedStar Georgetown Univ Hospital Gastroenterology
4.87
15 reviews
Bedside manner
4.7
Wait time
4.5
Recent reviews
Dr. Mattar is very warm and approachable. We discussed my issues and various options of testing to determine what the problem might be. His staff was friendly as well. This is my first visit to a gastroenterologist and Dr. Mattar made the experience pleasant and not daunting. There seemed to be an issue with scheduling at first in that there was a slot open for my appointment time, but it had not been assigned to me. I was concerned that I'd be turned away, but the receptionist got everything sorted out and I was able to see Dr. Mattar without having to wait.
May 27, 2015Initials hidden
He made me feel comfortable, asked a lot of questions, and made sure I understood the reasoning for his testing plan. He was conscious of cost to me. He wrote everything down.
April 21, 2015Initials hidden
Office location
MedStar Georgetown University Hospital
407.6 mi · 3800 Reservoir Rd NW, 2 Main Bldg, Washington, DC, 20007
Mark C. Mattar does not participate in Zocdoc to offer online booking at this time
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In-network insurances
Aetna
BlueCross BlueShield
Cigna
Medicare
UnitedHealthcare
Aetna
BlueCross BlueShield
Cigna
Medicare
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Colonoscopy
Chronic Inflammatory Bowel Disease (IBD)
Upper GI endoscopy
Colonoscopy
Chronic Inflammatory Bowel Disease (IBD)
Upper GI endoscopy
More about Dr. Mark C. Mattar, MD
Mark C. Mattar is a dedicated and compassionate gastroenterologist based in Washington, DC. Dr. Mattar earned his medical degree from Virginia Commonwealth University. He completed his residency at Olive View-UCLA Medical Center. Dr. Mattar continued his training by completing a fellowship at MedStar Georgetown University Hospital.
Dr. Mattar is certified in internal medicine and gastroenterology by the American Board of Internal Medicine. He is affiliated with MedStar Georgetown University Hospital in Washington, DC. Dr. Mattar has expertise in diagnosing and treating inflammatory bowel disease (IBD), crohn's, and colitis, as well as other digestive diseases that include irritable bowel syndrome, colon cancer, and reflux disease.
Dr. Mattar speaks Arabic, Spanish and English fluently, which makes him widely accessible to patients from a variety of cultural backgrounds. His approach to his patients is one of diligence, solutions, and relief.
Active in clinical trials for IBD and performs fecal microbiota transplantation for recurrent and refractory C. difficile infection.
Active in clinical research and medical education for trainees, the community, and patients.
Education & experience
Education
Medical School - Virginia Commonwealth University
Olive View-UCLA Medical Center (Residency)
MedStar Georgetown University Hospital (Fellowship)
Practice
MedStar Georgetown Univ Hospital Gastroenterology
Affiliation
MedStar Georgetown University Hospital
Certifications
American Board of Internal Medicine
Gastroenterology (Internal Medicine)
Professional memberships
American College of Gastroenterology
Crohn's & Colitis Foundation of America
Awards and publications
In 2014, Dr. Mattar was recognized by the American Gastroenterological Association’s Bridges to Excellence Program for his commitment to providing comprehensive quality care for patients with IBD.
Elizabeth Hill, MD; Mohamed Sultan, MD; Walid Chalhoub, MD; Patrick Jackson, MD; Mark Mattar, MD. MEDIAN ARCUATE LIGAMENT SYNDROME – A CAUSE OF CHRONIC ABDOMINAL PAIN IN A PATIENT WITH ULCERATIVE COLITIS. Journal of Medical Cases. Accepted April 11, 2014.
Mark Mattar, MD; Denver Lough, PhD; Michael J Pishvaian, MD, PhD; Aline Charabaty, MD. CURRENT MANAGEMENT OF INFLAMMATORY BOWEL DISEASE AND COLORECTAL CANCER. Gastrointestinal Cancer Research. 2011 Mar;4(2):53-61.
Mark Mattar, Paul Frankel, Kevin Clarke, Yun Yen, Donald David, David Chu. CLINICOPATHOLOGIC SIGNIFICANCE OF SYNCHRONOUS AND METACHRONOUS ADENOMAS IN COLORECTAL CANCER. Clin Colorectal Cancer. 2005 Nov; 5(4):274-8.
Background
Languages spoken
English
Spanish
Arabic
Gender
Male
NPI number
#1841401031
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Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.87
Wait time
4.53
Bedside manner
4.67
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
15 reviews
Most relevant
I loved it, they are so professional and I was treaded very well. I will recommend him to all my friends.
December 18, 2014Rodolfo O.Verified patient
They have EHR problems in that hospital. Otherwise I think I might have been seen sooner.
More than 1 year agoInitials hidden
I was pleased
August 11, 2015Sean S.Verified patient
Dr. Mattar is very warm and approachable. We discussed my issues and various options of testing to determine what the problem might be. His staff was friendly as well. This is my first visit to a gastroenterologist and Dr. Mattar made the experience pleasant and not daunting. There seemed to be an issue with scheduling at first in that there was a slot open for my appointment time, but it had not been assigned to me. I was concerned that I'd be turned away, but the receptionist got everything sorted out and I was able to see Dr. Mattar without having to wait.
May 27, 2015Initials hidden
He made me feel comfortable, asked a lot of questions, and made sure I understood the reasoning for his testing plan. He was conscious of cost to me. He wrote everything down.
April 21, 2015Initials hidden
I liked that he gave me a lot of options as far as treatment, and took the time to go over what we had talked about (he typed up everything) at the end.
February 18, 2015Initials hidden
I was first examined by a nurse practitioner. While I had some initial reservations about this, he was extremely courteous and professional. Once the nurse practitioner examined, Dr. Mattar dropped by. He did not rush, asked me quite a few additional questions about my symptoms, and discussed an appropriate treatment with me. A couple of days later, I feel much better. He was very helpful, and I would highly recommend him.
October 10, 2014Initials hidden
Everyone was very polite and professional.
More than 1 year agoDP
Overall good!
More than 1 year agoKA
August 5, 2015Heather K.Verified patient
More than 1 year agoInitials hidden
January 5, 2015Joseph S.Verified patient
More than 1 year agoJL
More than 1 year agoInitials hidden
July 21, 2014Initials hidden
Which hospital is Dr. Mark C. Mattar affiliated with?
Dr. Mark C. Mattar is affiliated with MedStar Georgetown University Hospital.
What practice does Dr. Mark C. Mattar work with?
Dr. Mark C. Mattar works with MedStar Georgetown Univ Hospital Gastroenterology.
Where is Dr. Mark C. Mattar's office located?
Dr. Mark C. Mattar's office is located at 3800 Reservoir Rd NW, Washington, DC 20007.
Which board certifications does Dr. Mark C. Mattar have?
Dr. Mark C. Mattar is certified by American Board of Internal Medicine and Gastroenterology (Internal Medicine).
What are common reasons for patients to see Dr. Mark C. Mattar?
Dr. Mark C. Mattar frequently sees patients for Acid Reflux / Heartburn, Colon Cancer Screening, Diarrhea, Gastroenterology Consultation, and Hemorrhoids. You can see other visit reasons for Dr. Mark C. Mattar on their profile.
What languages does Dr. Mark C. Mattar speak?
Dr. Mark C. Mattar speaks English, Spanish, and Arabic.
How do patients rate Dr. Mark C. Mattar in reviews?
15 patients have reviewed Dr. Mark C. Mattar. The overall rating for this doctor is 4.87/5. They have a 4.67/5 rating for bedside manner and a 4.53/5 rating for wait time. You can read individual reviews and ratings on their profile.