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Dr. Mark Christopher Mattar, MD

Accepting New Patients

(Dr. Mark Mattar, MD)

(396 Ratings)

Specializes in: Adult Gastroenterology

Virginia Commonwealth University (VCU) School of Medicine (2004)

Professional interests include: esophageal cancer, Crohn's disease, esophageal dilation, and more.

3800 Reservoir Road NW Main Building, 2nd floor, Room 2210
Washington, DC 20007

(202) 444-8541

Dr. Mark Christopher Mattar, MD is a gastroenterologist in Washington, DC specializing in adult gastroenterology. He graduated from Virginia Commonwealth University (VCU) School of Medicine in 2004 and has 22 years of experience. Dr. Mark Christopher Mattar, MD is affiliated with MedStar Georgetown University Hospital, MedStar Washington Hospital Center, MedStar Health and MEDSTAR MEDICAL GROUP II LLC.

Office Locations

3800 Reservoir Road NW Main Building, 2nd floor, Room 2210
Washington, DC 20007

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Some issues Dr. Mark Christopher Mattar, MD can help you with:

Enteroscopy

Enteroscopy visually examines the small bowel and identifies such issues as bleeding, tumors, polyps, ulcers, and swollen lymph nodes. Common reasons this exam may be ordered are abnormal X-ray results and unexplained diarrhea.

Enteroscopies may be used alone or in combination with other procedures. For example, if a doctor suspects malignancy (cancer) in the small bowel, she may use an enteroscope to take a sample of tissue from the small bowel and have it examined in a laboratory. If there is a blockage in the small intestine that cannot be surgically removed, an enteroscopy-guided stent placement may help relieve some of the symptoms associated with the obstruction. Enteroscopes may also be used to treat intestinal bleeding and remove abnormal growths like tumors and polyps, as well as foreign objects that might have found their way into the small bowel.

There are several ways to perform an enteroscopy:

Push enteroscopy involves the use of a long tube with a camera, called an enteroscope. Depending on the location of the problem, the enteroscope is either passed through the mouth or rectum. This technique is often used to detect and stop bleeding in the upper small intestine.
Balloon enteroscopy uses scopes that have tiny balloons at the tip. The balloons inflate and deflate to help make the passage of the scope into the small bowel easier. This method is used when there is a need to access and treat certain parts of the small intestine that push enteroscopy cannot reach.
Capsule enteroscopy involves swallowing a capsule with a tiny camera inside it. As the capsule travels through the small intestine, the camera records and sends images that are then downloaded and analyzed by the doctor. The capsule eventually leaves the body during bowel movement. If the doctor needs to visualize the entire small intestine, capsule enteroscopy is the only option. The only drawback to this technique is that it cannot be combined with any treatment.

Enteroscopy is typically performed at the doctor's office and takes about 20 to 30 minutes, but may take longer if combined with another procedure. Patients may have a sore throat for a few hours if the scope was inserted through the mouth. Normal activities may be resumed about 24 hours following enteroscopy.

Gastrointestinal Problems (Digestive Disorders)

The gastrointestinal system, or GI tract, is the name given to a collection of organs that work together to digest food. These organs fit together in a long tube, running from the mouth to the anus, and include the esophagus, stomach, and intestines, among others. With so many parts working together, complicated by today's busy lifestyles and diets, digestive problems are common. As many as 1 in 3 Americans have a digestive or GI disorder. There are a huge variety of digestive problems, but the most common are IBS, constipation, GERD, hemorrhoids, and ulcers.

IBS, or irritable bowel syndrome, happens when the muscles surrounding the colon contract too easily or frequently. The result is abdominal pain, cramps, diarrhea or constipation, gas and bloating. IBS attacks can often be brought on by specific triggers, so a key part of treatment is learning which foods trigger IBS attacks and avoiding them. Treatment also includes exercise, avoiding stress, and medications if needed.

Constipation, or large, hard, or infrequent stools, happens to everyone at some point. It can be caused by a disruption in routine or food, or by eating a diet without many fresh fruits and vegetables. Although it is uncomfortable, constipation is common and usually not serious, but it can sometimes become chronic. Adding fiber to the diet, exercising, and taking medications may help.

GERD, or gastroesophageal reflux disease, is a severe form of chronic heartburn where stomach acid spills back up into the esophagus. Left untreated, the acid may even eat away at the esophagus and cause serious damage. Treatment includes changing the diet to avoid trigger foods, losing weight if needed, medications, or even surgery.

Hemorrhoids are blood vessels around the rectum that become irritated, swollen or torn while straining during a bowel movement. They are most often caused by constipation, but can also be caused by pregnancy, diarrhea, or simply a genetic predisposition towards hemorrhoids. Treatment involves first treating any constipation issues, then keeping the area clean and soothed until it has healed. If these measures are ineffective, surgery is sometimes used.

Peptic ulcers are sores or spots of inflammation in the lining of the stomach or close to the stomach in the small intestine. Usually this area is coated with a protective lining that shields the tissue from the strong stomach acid, but a break in the lining can let acid in, causing the sores. It used to be thought that stress caused ulcers, but now it is known that is not the case. Most often, they are caused by an infection by H. pylori bacteria, but ulcers can also be caused by alcohol abuse or overuse of aspirin, ibuprofen, naproxen, or other NSAIDS. The symptoms of an ulcer are pain, hunger, nausea, and fatigue.

Gastrointestinal problems, perhaps more than any other area, are markedly affected by lifestyle. Many disorders can be prevented or treated at least in part by eating a healthy diet high in fiber, exercising regularly, drinking enough water, and limiting alcohol intake. Still, the frequency of digestive disorders means that even the healthiest person can be affected by them. Anyone who notices blood in their stool, experiences abdominal pain, unexplained weight loss, or any significant change in bowel movements should see a doctor.

Small Bowel Resection

Small bowel resection is a surgical procedure performed to remove all or part of the small intestine. The small intestine absorbs nutrients from food and passes waste to the large bowel. Tumors or conditions such as cancer or inflammatory bowel disease can cause injury to the intestine or lead to blockage. To allow the small intestine to function normally, surgery to remove part of the intestine may be necessary.

Small bowel resection can be done through either a laparoscopic or open approach. If someone is having a laparoscopic small bowel resection, their surgeon will make multiple small incisions on the abdomen and insert a thin tube with a camera, called a laparoscope. If they are having an open small bowel resection, a large cut is made on the abdomen to expose the intestine. A laparoscopic small bowel resection is associated with less pain and requires a shorter recovery period, but depending on the condition, patients may have to undergo an open procedure.

After making the necessary incisions, the surgeon will remove the targeted portion of the intestine and then perform an anastomosis. Depending on the amount of intestine left, an anastomosis may involve the surgeon either joining together the ends of the intestine or creating a stoma which is an opening in the abdomen. In this procedure, called an ileostomy, the end of the small intestine (ileum) is attached to the opening in the abdominal wall. A drainage pouch will be attached to the skin to collect waste.

Stomas may be permanent or temporary. If the stoma is temporary, the ends of the intestine will be rejoined in a later procedure. Temporary stomas are generally used to allow time for the intestines to heal following surgery.

Small bowel resection is typically completed in one to four hours. After the operation, patients will need to stay in the hospital for a few days, and it may take some time before they can return to their normal diet.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mark Christopher Mattar, MD treated as a gastroenterologist in Washington, DC during 2012 were hospital care, inpatient care, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Mark Christopher Mattar, MD for Medicare patients.

diagnostic procedures	21
gastrointestinal procedures	21
hospital care	131
inpatient care	131
minimally invasive procedures	21
removal of lesion (e.g. growth)	21

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark Christopher Mattar, MD treated as a gastroenterologist in Washington, DC during 2013 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Mark Christopher Mattar, MD for Medicare patients.

diagnostic procedures	83
doctor visit	51
gastrointestinal procedures	110
hospital care	68
inpatient care	68
minimally invasive procedures	110
preventive care	16
removal of lesion (e.g. growth)	83

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Christopher Mattar, MD.

**Gender**
Male	70
Female	112

**Ethnicity**
Non-Hispanic White	86
Black	81
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	80
From 75 to 84	40
85 and over	16
Less than 65	46

Conditions of Medicare patients treated by Dr. Mark Christopher Mattar, MD in 2013

Hypertension	71
High Cholesterol	60
Stroke	7
Ischemic Heart Disease	42
Depression	28
Chronic Kidney Disease	47
Asthma	16
Osteoperosis	13
Atrial Fibrilation	16
Heart Failure	34
Chronic Obstructive Pulmonary Disease	20
Diabetes	43
Dementia	12
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark Christopher Mattar, MD treated as a gastroenterologist in Washington, DC during 2014 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Christopher Mattar, MD for Medicare patients.

diagnostic procedures	93
doctor visit	90
gastrointestinal procedures	134
hospital care	96
inpatient care	96
minimally invasive procedures	134
preventive care	28
removal of lesion (e.g. growth)	93

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Christopher Mattar, MD.

**Gender**
Male	107
Female	125

**Ethnicity**
Non-Hispanic White	110
Black	99
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	107
From 75 to 84	53
85 and over	15
Less than 65	57

Conditions of Medicare patients treated by Dr. Mark Christopher Mattar, MD in 2014

Hypertension	72
High Cholesterol	52
Stroke	7
Ischemic Heart Disease	36
Depression	30
Chronic Kidney Disease	43
Asthma	12
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	28
Chronic Obstructive Pulmonary Disease	17
Diabetes	38
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark Christopher Mattar, MD treated as a gastroenterologist in Washington, DC during 2015 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Christopher Mattar, MD for Medicare patients.

diagnostic procedures	89
doctor visit	89
gastrointestinal procedures	122
hospital care	91
inpatient care	91
minimally invasive procedures	122
preventive care	33
removal of lesion (e.g. growth)	89

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Christopher Mattar, MD.

**Gender**
Male	224
Female	354

**Ethnicity**
Non-Hispanic White	262
Black	254
Hispanic	0
Asian	22
Other	0
Native American	0

**Age**
From 65 to 74	280
From 75 to 84	116
85 and over	50
Less than 65	132

Conditions of Medicare patients treated by Dr. Mark Christopher Mattar, MD in 2015

Hypertension	75
High Cholesterol	52
Stroke	9
Ischemic Heart Disease	36
Depression	32
Chronic Kidney Disease	49
Asthma	21
Osteoperosis	8
Atrial Fibrilation	16
Heart Failure	29
Chronic Obstructive Pulmonary Disease	16
Diabetes	43
Dementia	16
Cancer	18

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark Christopher Mattar, MD treated as a gastroenterologist in Washington, DC during 2016 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Christopher Mattar, MD for Medicare patients.

diagnostic procedures	51
doctor visit	77
gastrointestinal procedures	76
hospital care	74
inpatient care	74
minimally invasive procedures	76
preventive care	25
removal of lesion (e.g. growth)	51

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Christopher Mattar, MD.

**Gender**
Male	86
Female	120

**Ethnicity**
Non-Hispanic White	110
Black	75
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	95
From 75 to 84	45
85 and over	18
Less than 65	48

Conditions of Medicare patients treated by Dr. Mark Christopher Mattar, MD in 2016

Hypertension	71
High Cholesterol	56
Stroke	13
Ischemic Heart Disease	37
Depression	28
Chronic Kidney Disease	45
Asthma	26
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	24
Chronic Obstructive Pulmonary Disease	18
Diabetes	39
Dementia	18
Cancer	20

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark Christopher Mattar, MD treated as a gastroenterologist in Washington, DC during 2017 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Mark Christopher Mattar, MD for Medicare patients.

diagnostic procedures	80
doctor visit	94
gastrointestinal procedures	111
hospital care	78
inpatient care	78
minimally invasive procedures	111
preventive care	31
removal of lesion (e.g. growth)	80

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Christopher Mattar, MD.

**Gender**
Male	109
Female	141

**Ethnicity**
Non-Hispanic White	129
Black	98
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	112
From 75 to 84	63
85 and over	19
Less than 65	56

Conditions of Medicare patients treated by Dr. Mark Christopher Mattar, MD in 2017

Hypertension	73
High Cholesterol	50
Stroke	9
Ischemic Heart Disease	29
Depression	27
Chronic Kidney Disease	52
Asthma	13
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	25
Chronic Obstructive Pulmonary Disease	16
Diabetes	39
Dementia	16
Cancer	18

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark Christopher Mattar, MD treated as a gastroenterologist in Washington, DC during 2018 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Mark Christopher Mattar, MD for Medicare patients.

diagnostic procedures	107
doctor visit	101
gastrointestinal procedures	146
hospital care	52
inpatient care	52
minimally invasive procedures	146
preventive care	39
removal of lesion (e.g. growth)	107

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Christopher Mattar, MD.

**Gender**
Male	106
Female	138

**Ethnicity**
Non-Hispanic White	124
Black	92
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	126
From 75 to 84	53
85 and over	15
Less than 65	50

Conditions of Medicare patients treated by Dr. Mark Christopher Mattar, MD in 2018

Hypertension	71
High Cholesterol	51
Stroke	5
Ischemic Heart Disease	30
Depression	28
Chronic Kidney Disease	46
Asthma	11
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	20
Chronic Obstructive Pulmonary Disease	15
Diabetes	34
Dementia	16
Cancer	16

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark Christopher Mattar, MD treated as a gastroenterologist in Washington, DC during 2019 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Mark Christopher Mattar, MD for Medicare patients.

diagnostic procedures	96
doctor visit	92
gastrointestinal procedures	107
hospital care	61
inpatient care	61
minimally invasive procedures	107
preventive care	11
removal of lesion (e.g. growth)	96

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Christopher Mattar, MD.

**Gender**
Male	70
Female	128

**Ethnicity**
Non-Hispanic White	91
Black	80
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	105
From 75 to 84	47
85 and over	11
Less than 65	35

Conditions of Medicare patients treated by Dr. Mark Christopher Mattar, MD in 2019

Hypertension	67
High Cholesterol	55
Stroke	6
Ischemic Heart Disease	31
Depression	28
Chronic Kidney Disease	45
Asthma	12
Osteoperosis	12
Atrial Fibrilation	10
Heart Failure	22
Chronic Obstructive Pulmonary Disease	11
Diabetes	30
Dementia	15
Cancer	21

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark Christopher Mattar, MD treated as a gastroenterologist in Washington, DC during 2020 were hospital care, inpatient care, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Mark Christopher Mattar, MD for Medicare patients.

diagnostic procedures	51
doctor visit	108
gastrointestinal procedures	51
hospital care	65
inpatient care	65
minimally invasive procedures	51
removal of lesion (e.g. growth)	51

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Christopher Mattar, MD.

**Gender**
Male	82
Female	108

**Ethnicity**
Non-Hispanic White	85
Black	81
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	85
From 75 to 84	49
85 and over	19
Less than 65	37

Conditions of Medicare patients treated by Dr. Mark Christopher Mattar, MD in 2020

Hypertension	67
High Cholesterol	60
Stroke	6
Ischemic Heart Disease	44
Depression	28
Chronic Kidney Disease	46
Asthma	12
Osteoperosis	14
Atrial Fibrilation	12
Heart Failure	23
Chronic Obstructive Pulmonary Disease	14
Diabetes	38
Dementia	19
Cancer	16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark Christopher Mattar, MD treated as a gastroenterologist in Washington, DC during 2021 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Christopher Mattar, MD for Medicare patients.

diagnostic procedures	103
doctor visit	132
gastrointestinal procedures	103
hospital care	55
inpatient care	55
minimally invasive procedures	103
removal of lesion (e.g. growth)	103

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Christopher Mattar, MD.

**Gender**
Male	90
Female	146

**Ethnicity**
Non-Hispanic White	111
Black	93
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	104
From 75 to 84	67
85 and over	19
Less than 65	46

Conditions of Medicare patients treated by Dr. Mark Christopher Mattar, MD in 2021

Hypertension	68
High Cholesterol	60
Stroke	10
Ischemic Heart Disease	40
Depression	24
Chronic Kidney Disease	46
Asthma	15
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	27
Chronic Obstructive Pulmonary Disease	14
Diabetes	35
Dementia	14
Cancer	19

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark Christopher Mattar, MD treated as a gastroenterologist in Washington, DC during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Mark Christopher Mattar, MD for Medicare patients.

diagnostic procedures	118
doctor visit	136
gastrointestinal procedures	130
hospital care	47
inpatient care	47
minimally invasive procedures	130
preventive care	12
removal of lesion (e.g. growth)	118

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Christopher Mattar, MD.

**Gender**
Male	102
Female	150

**Ethnicity**
Non-Hispanic White	133
Black	86
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	126
From 75 to 84	77
85 and over	14
Less than 65	35

Conditions of Medicare patients treated by Dr. Mark Christopher Mattar, MD in 2022

Hypertension	75
High Cholesterol	73
Stroke	10
Ischemic Heart Disease	28
Depression	23
Chronic Kidney Disease	25
Asthma	14
Osteoperosis	20
Atrial Fibrilation	19
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	11
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Mark Christopher Mattar, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark Christopher Mattar, MD treated as a gastroenterologist in Washington, DC were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

diagnostic procedures	81
doctor visit	97
gastrointestinal procedures	101
hospital care	74
inpatient care	74
minimally invasive procedures	101
preventive care	24
removal of lesion (e.g. growth)	81

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mark Christopher Mattar, MD.

**Gender**
Male	95
Female	138

**Ethnicity**
Black / African American	94
Asian / Pacific Islander	2
Non-Hispanic White	112
Hispanic	2
Native American / Alaskan Native	0
Other	2

**Age**
75 to 84	55
85 and over	17
Less than 65	49
65 to 74	110

Average of Total of Conditions of Medicare patients treated by Dr. Mark Christopher Mattar, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Mark Christopher Mattar, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	64
High Cholesterol	51
Stroke	7
Ischemic Heart Disease	32
Depression	25
Chronic Kidney Disease	40
Asthma	13
Osteoporosis	10
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	33
Atrial Fibrillation	12
Cancer	16
Dementia	13

Education & Training

Dr. Mark Christopher Mattar, MD graduated from Virginia Commonwealth University (VCU) School of Medicine in 2004. He completed residency at Olive View-UCLA Medical Center. He is certified by the American Board of Internal Medicine: Gastroenterology and has a state license in District of Columbia.

Medical School: Virginia Commonwealth University (VCU) School of Medicine (2004)

Residency: Olive View-UCLA Medical Center (2007)

Board Certification: American Board of Internal Medicine: Gastroenterology

Licensed In: District of Columbia

Affiliations & Hospitals

Dr. Mark Christopher Mattar, MD is associated with these hospitals and organizations:

MedStar Georgetown University Hospital

MedStar Washington Hospital Center

MedStar Health

MEDSTAR MEDICAL GROUP II LLC

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Mark Christopher Mattar, MD appears to accept the following insurance providers: MultiPlan, Optimum Choice, Optima Health, MAMSI, Magellan Health Services, United Healthcare Choice Plus, United Healthcare Choice, First Health PPO, Blue Choice, Great-West Healthcare, TRICARE, Coventry, TRICARE Reserve Select, Anthem, Aetna Managed Choice POS, Beech Street PPO, Aetna HMO, Kaiser Permanente, CIGNA PPO, CIGNA EPO, Aetna Medicare PPO, Aetna Medicare PFFS, CIGNA Indemnity, AmeriHealth, AARP, Medicare Advantage, TriWest, Coventry National Network PPO, Highmark, Amerigroup, United Healthcare, Medicaid, Humana, Cigna, Sentara Health Plans, WellPoint, United Healthcare Community Plan (AmeriChoice), Humana Medicare Advantage PPO, Blue Cross and Blue Shield of Michigan, CIGNA PPO Plus, HealthyBlue PPO, Aetna Premier 200PD, MedStar Family Choice - Maryland Health Choice, CareFirst NASCO, Private Fee-for-Service Plans (PFFS), M.D. IPA Preferred (POS), CareFirst Maryland Indemnity or PPO, IH-PPO, Aetna Advantage 6350PD, DC/MD SHOP QHP Small Business Plans, MedStar Family Choice DC Healthy Families, CareFirst EPO, Optimum Choice Preferred (POS), OCI Direct (HMO), Medicare Direct, Alterwood Advanatge HMO & DSNP Plans, Aetna Open Choice (PPO), OA Plus, CareFirst Administrators, United Student Resources, IH-Network Only Plus, IH-POS, Aetna Classic 5000, Aetna Signature Administrator PPO/TPA, CareFirst Community Health Plan of Maryland, Healthy Blue (HMO, POS), IH-POS Plus, Jai Medical Systems - Maryland Health Choice, CareFirst Maryland Point of Service Plan, Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA, Health Services for Children with Special Needs, Choice POS II, CareFirst Blue Card Program, Choice Fund PPO, IH-EPO Plus, Aetna VA Exchange, Aetna Managed Choice Open Access (POS), Aetna Better Health of Virginia, CareFirst BlueCross BlueShield Advantage Core/Enhanced, Aetna Worker's Compensation Network, Options PPO Cardiac Global, Uniformed Services Family Health Plan, Aetna Advantage 5750, IH-Open HMO Option, HumanaChoice Honor's plan PPO, Aetna Basic, CareFirst FEP Blue Focus, Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global, MedStar Family Choice DC Healthcare Alliance, IH-Open EPO Plus, IH-Open POS Plus, Core Essential (HMO), Johns Hopkins Advantage MD PLUS PPO, Select HMO/HealthFund/Health Network, MD IPA (HMO) & MD IPA Preferred Cardiac Global, CareFirst Blue Preferred PPO, Aetna Elect Choice/ Open Access (POS), IH-Open HMO, Aetna Advantage 6350, Erickson Advantage Plans, M.D. IPA (HMO), Aetna Elect Choice/ EPO (Aetna Health Fund), POS OA, Aetna Quality Point of Service (POS), IH-Open POS II, Johns Hopkins Advantage MD HMO, Aetna Classic 5000PD, CareFirst Dual Prime HMO-SNP, Priority Partners - Maryland Health Choice, Aetna Student Health Insurance, Private Health Care Systems (PPO), Choice POS, Lasso Healthcare - Medicare Medical Savings Account, IH-Indemnity, CareFirst MedStar PPO, CareFirst (NCA) Indemnity, Aetna Traditional Choice (PPO), United Medicare Private Fee-for-Service (PFFS) plans, IH-HMO, IH-Open Network Only Plus, HumanaChoice PPO, CareFirst Federal Employee Program (Std. & Basic PPO), Johns Hopkins Advantage MD PPO, Medicare FFS, Maryland Physicians Care MCO, Veterans Affairs Community Care Network, Advantra Platinum (PPO), Aetna Better Health of Maryland, BCBS Out-of-State Medicare Plans (Blue Advantage), Choice POS II Open Access, Employee Health Plan, Navigate, Police and Fire Clinic, Network OA, Aetna Classic 3500 and CareFirst MedStar Select PPO.

Insurance Accepted by Provider includes:

According to our sources, Dr. Mark Christopher Mattar, MD accepts the following insurance providers:

MultiPlan

Optimum Choice

Optima Health

MAMSI

Magellan Health Services

United Healthcare Choice Plus

United Healthcare Choice

First Health PPO

Blue Choice

Great-West Healthcare

TRICARE

Coventry

TRICARE Reserve Select

Anthem

Aetna Managed Choice POS

Beech Street PPO

Aetna HMO

Kaiser Permanente

CIGNA PPO

CIGNA EPO

Aetna Medicare PPO

Aetna Medicare PFFS

CIGNA Indemnity

AmeriHealth

AARP

Medicare Advantage

TriWest

Coventry National Network PPO

Highmark

Amerigroup

United Healthcare

Medicaid

Humana

Cigna

Sentara Health Plans

WellPoint

United Healthcare Community Plan (AmeriChoice)

Humana Medicare Advantage PPO

Blue Cross and Blue Shield of Michigan

CIGNA PPO Plus

HealthyBlue PPO

Aetna Premier 200PD

MedStar Family Choice - Maryland Health Choice

CareFirst NASCO

Private Fee-for-Service Plans (PFFS)

M.D. IPA Preferred (POS)

CareFirst Maryland Indemnity or PPO

IH-PPO

Aetna Advantage 6350PD

DC/MD SHOP QHP Small Business Plans

MedStar Family Choice DC Healthy Families

CareFirst EPO

Optimum Choice Preferred (POS)

OCI Direct (HMO)

Medicare Direct

Alterwood Advanatge HMO & DSNP Plans

Aetna Open Choice (PPO)

OA Plus

CareFirst Administrators

United Student Resources

IH-Network Only Plus

IH-POS

Aetna Classic 5000

Aetna Signature Administrator PPO/TPA

CareFirst Community Health Plan of Maryland

Healthy Blue (HMO, POS)

IH-POS Plus

Jai Medical Systems - Maryland Health Choice

CareFirst Maryland Point of Service Plan

Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA

Health Services for Children with Special Needs

Choice POS II

CareFirst Blue Card Program

Choice Fund PPO

IH-EPO Plus

Aetna VA Exchange

Aetna Managed Choice Open Access (POS)

Aetna Better Health of Virginia

CareFirst BlueCross BlueShield Advantage Core/Enhanced

Aetna Worker's Compensation Network

Options PPO Cardiac Global

Uniformed Services Family Health Plan

Aetna Advantage 5750

IH-Open HMO Option

HumanaChoice Honor's plan PPO

Aetna Basic

CareFirst FEP Blue Focus

Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global

MedStar Family Choice DC Healthcare Alliance

IH-Open EPO Plus

IH-Open POS Plus

Core Essential (HMO)

Johns Hopkins Advantage MD PLUS PPO

Select HMO/HealthFund/Health Network

MD IPA (HMO) & MD IPA Preferred Cardiac Global

CareFirst Blue Preferred PPO

Aetna Elect Choice/ Open Access (POS)

IH-Open HMO

Aetna Advantage 6350

Erickson Advantage Plans

M.D. IPA (HMO)

Aetna Elect Choice/ EPO (Aetna Health Fund)

POS OA

Aetna Quality Point of Service (POS)

IH-Open POS II

Johns Hopkins Advantage MD HMO

Aetna Classic 5000PD

CareFirst Dual Prime HMO-SNP

Priority Partners - Maryland Health Choice

Aetna Student Health Insurance

Private Health Care Systems (PPO)

Choice POS

Lasso Healthcare - Medicare Medical Savings Account

IH-Indemnity

CareFirst MedStar PPO

CareFirst (NCA) Indemnity

Aetna Traditional Choice (PPO)

United Medicare Private Fee-for-Service (PFFS) plans

IH-HMO

IH-Open Network Only Plus

HumanaChoice PPO

CareFirst Federal Employee Program (Std. & Basic PPO)

Johns Hopkins Advantage MD PPO

Medicare FFS

Maryland Physicians Care MCO

Veterans Affairs Community Care Network

Advantra Platinum (PPO)

Aetna Better Health of Maryland

BCBS Out-of-State Medicare Plans (Blue Advantage)

Choice POS II Open Access

Employee Health Plan

Navigate

Police and Fire Clinic

Network OA

Aetna Classic 3500

CareFirst MedStar Select PPO

Ratings & Reviews

Dr. Mark Christopher Mattar, MD has an exceptional overall rating with an average of 4.5 out of 5 stars based on 396 ratings. We collect ratings and reviews of Dr. Mark Christopher Mattar, MD from all over the web to help you find the right in Washington, DC.

4.5

Overall Rating

(396 Ratings)

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Reviews From Around The Web

Overall Rating: 5.0 2022-09-23

Patient verified via Press Ganey

Routine check-up by phone.

Overall Rating: 5.0 2026-01-10

Patient verified via Press Ganey

Excellent

General Payments

These charts describe general payments received by Dr. Mark Christopher Mattar, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
AbbVie, Inc.	$291,505 Humira $206,969	Lupron $21,668	Viekira $25	$62,844
E.R. Squibb & Sons, L.L.C.	$62,898 ZEPOSIA $56,320	OPDIVO $5,653	DAKLINZA $25	$900
AbbVie Inc.	$51,742 Humira $29,553	Skyrizi $14,434	Rinvoq $7,756
Pfizer Inc.	$36,224 XELJANZ $36,156	$68
Janssen Scientific Affairs, LLC	$33,254 STELARA $33,077	REMICADE $126	SIMPONI $51
Other	$48,729 STELARA $12,041	ENTYVIO $9,316	Injectafer $8,642	SIMPONI $2,518	REMICADE $224	Other $15,989

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$401,770
Consulting Fee	$50,720
Travel and Lodging	$49,281
Food and Beverage	$14,279
Honoraria	$7,740
Other	$563

Research Payments

Dr. Mark Christopher Mattar, MD has received 71 research payments totaling $201,210.

Biography

Dr. Mark Mattar's medical specialty is adult gastroenterology. He is rated highly by his patients. His areas of expertise include achalasia, heart bypass surgery (CABG), and anoscopy. Dr. Mattar appears to be in-network for Anthem, Blue California, Coventry, and more. He graduated from Virginia Commonwealth University (VCU) School of Medicine and then he performed his residency at Olive View-UCLA Medical Center. In addition to English, Dr. Mattar (or staff) speaks Arabic and Spanish. His professional affiliations include MedStar Georgetown University Hospital and MedStar Washington Hospital Center. Doctor.com reports that Dr. Mattar is accepting new patients at his office in Washington, DC.