{"_score":0,"docId":"10557996","dateModify":"02/25/2026","personId":10557996,"name":"Mark Mattar","displayName":"Dr. Mark Mattar","displayNameShort":"Dr. Mark Mattar","displayLastName":"Dr. Mattar","initials":"MM","familyName":"Dr. Mattar","score":58.91584139780619,"yearsOfExperience":0,"issuers":[{"issuerName":"Health Care Services Corporation","personifyId":554586162},{"issuerName":"Anthem BCBS","personifyId":309961161},{"issuerName":"EmblemHealth","personifyId":554417857},{"issuerName":"Cigna","personifyId":309961178},{"issuerName":"Premera Blue Cross","personifyId":575357467},{"issuerName":"Clear Spring Health","personifyId":563472317},{"issuerName":"Commonwealth Care Alliance","personifyId":554481720},{"issuerName":"Medicaid","personifyId":554481722},{"issuerName":"Medicare","personifyId":554417855},{"issuerName":"Silverscript","personifyId":563472210},{"issuerName":"Blue Cross Blue Shield","personifyId":309961277},{"issuerName":"Wellcare","personifyId":554375005},{"issuerName":"CareFirst","personifyId":309961147},{"issuerName":"Highmark","personifyId":309961177},{"issuerName":"ConnectiCare","personifyId":563475125},{"issuerName":"Blue Shield of California","personifyId":554448602},{"issuerName":"Independent Health","personifyId":309961294},{"issuerName":"HealthPartners","personifyId":309961193},{"issuerName":"Aetna","personifyId":309961223},{"issuerName":"Medstar Family Choice","personifyId":563469413},{"issuerName":"Anthem BCBS","personifyId":563469893},{"issuerName":"UnitedHealthcare","personifyId":309961217}],"insurance":[{"issuerId":309961223,"issuerName":"Aetna","planTypes":["EPO","HMO","POS","PPO"]},{"issuerId":309961161,"issuerName":"Anthem BCBS","planTypes":["EPO","HMO","POS","PPO"]},{"issuerId":309961277,"issuerName":"Blue Cross Blue Shield","planTypes":["EPO","HMO","POS","PPO"]},{"issuerId":554448602,"issuerName":"Blue Shield of California","planTypes":["HMO","INSURANCE PLAN","MANAGED MEDICAID PLAN","MEDICARE MAPD","MEDICARE PDP","MEDICARE-MEDICAID PLAN","OTHER COMMERCIAL","OTHER MEDICARE","OTHER MEDICARE PART D","PPO"]},{"issuerId":309961147,"issuerName":"CareFirst","planTypes":["HMO","POS","PPO"]},{"issuerId":309961178,"issuerName":"Cigna","planTypes":["EPO","HMO","PPO"]},{"issuerId":554481720,"issuerName":"Commonwealth Care Alliance","planTypes":["MANAGED MEDICAID PLAN","MEDICARE MAPD","MEDICARE PDP","MEDICARE SNP","MEDICARE-MEDICAID PLAN"]},{"issuerId":554417857,"issuerName":"EmblemHealth","planTypes":["HMO","INSURANCE PLAN","MANAGED MEDICAID PLAN","MEDICARE MAPD","MEDICARE PDP","OTHER COMMERCIAL","OTHER MEDICARE PART D"]},{"issuerId":554586162,"issuerName":"Health Care Services Corporation","planTypes":["HMO","INSURANCE PLAN","MANAGED MEDICAID PLAN","MEDICARE MAPD","MEDICARE PDP","MEDICARE SNP","OTHER COMMERCIAL","OTHER MEDICARE","OTHER MEDICARE PART D","PPO"]},{"issuerId":309961193,"issuerName":"HealthPartners","planTypes":["POS","PPO"]},{"issuerId":309961177,"issuerName":"Highmark","planTypes":["EPO","HMO","PPO"]},{"issuerId":309961294,"issuerName":"Independent Health","planTypes":["EPO","POS","PPO"]},{"issuerId":554481722,"issuerName":"Medicaid","planTypes":["OTHER MEDICAID","STATE MEDICAID"]},{"issuerId":554417855,"issuerName":"Medicare","planTypes":["INSURANCE PLAN","MANAGED MEDICAID PLAN","MEDICARE MAPD","MEDICARE PDP","MEDICARE SNP","MEDICARE-MEDICAID PLAN","OTHER MEDICARE PART D"]},{"issuerId":575357467,"issuerName":"Premera Blue Cross","planTypes":["INSURANCE PLAN","MEDICARE MAPD","OTHER COMMERCIAL","PPO"]},{"issuerId":309961217,"issuerName":"UnitedHealthcare","planTypes":["EPO","HMO","POS","PPO"]},{"issuerId":554375005,"issuerName":"Wellcare","planTypes":["EPO","HMO","INSURANCE PLAN","MANAGED MEDICAID PLAN","MEDICARE MAPD","MEDICARE PDP","MEDICARE SNP","MEDICARE-MEDICAID PLAN","OTHER MEDICARE","OTHER MEDICARE PART D"]}],"phone":"202-444-8541","isUSPrescriber":true,"languages":["English"],"address":{"addressLine1":"3800 Reservoir Rd NW Bldg 2 Rm 2210","city":"Washington","stateProvince":"Washington, D.c.","stateProvinceCode":"DC","country2Code":"US","country":"United States of America","fidelity":2,"latlon":"38.914363,-77.079339","distance":null,"lat":38.905054,"lon":-77.04289299999999,"postalCode":"20007","orgPhoneNumber":"202-444-8541","orgWebsite":null,"orgLogo":null,"orgName":"MedStar Health Gastroenterology at MedStar Georgetown University Hospital","healthSystem":{"website":null,"name":null},"locationString":"3800 Reservoir Rd NW Bldg 2 Rm 2210, Washington, DC, 20007, US","location":"Washington, DC","staticMapAlt":"MedStar Health Gastroenterology At MedStar Georgetown University Hospital, 3800 Reservoir Rd NW Bldg 2 Rm 2210 Washington, DC","staticMapHref":"https://www.google.com/maps/search/?api=1&query=MedStar%2BHealth%2BGastroenterology%2BAt%2BMedStar%2BGeorgetown%2BUniversity%2BHospital%2B3800%2Breservoir%2Brd%2Bnw%2Bbldg%2B2%2Brm%2B2210%2Bwashington%2C%2Bdc","staticMapUrl":"https://cdn.medifind.com/maps/api/staticmap?center=MedStar%2BHealth%2BGastroenterology%2BAt%2BMedStar%2BGeorgetown%2BUniversity%2BHospital%2B3800%2Breservoir%2Brd%2Bnw%2Bbldg%2B2%2Brm%2B2210%2Bwashington%2C%2Bdc&zoom=17&size=600x200&scale=2&maptype=roadmap&markers=size:mid%7Ccolor:0xea4335%7CMedStar%2BHealth%2BGastroenterology%2BAt%2BMedStar%2BGeorgetown%2BUniversity%2BHospital%2B3800%2Breservoir%2Brd%2Bnw%2Bbldg%2B2%2Brm%2B2210%2Bwashington%2C%2Bdc&key=AIzaSyBjH8KBPQ6X8jWF2C1xp1ZuJ-C4vjsRl2Y&signature=NtgSeHNdTc9hq-otSk0jFFAzHFs="},"addresses":null,"demographics":{"sex":"M"},"distance":null,"distanceValue":null,"distanceUnit":"mi","specialties":["Gastroenterology"],"primarySpecialtyLookup":{"specialty":"Gastroenterology","slug":"gastroenterology","role":"Gastroenterologist"},"image":null,"affiliations":{"practice":["MEDSTAR MEDICAL GROUP II LLC"],"hospitals":[{"name":"Medstar Georgetown University Hospital"}]},"primaryOrgName":"MedStar Health Gastroenterology At MedStar Georgetown University Hospital","primaryOrgWebsite":null,"socialMedia":[],"credentials":{"licenses":["Internal Medicine in VA"],"trainingInstitution":{}},"credentialCodes":["MD"],"isDoctor":true,"fellowships":[],"highlyRatedConditionsCount":11,"orgLogo":null,"orgWebsite":null,"isPremium":null,"bookOnline":null,"healthSystem":{"website":null,"name":null},"hasPublication":true,"youtubeVideos":[],"profileClaimed":false,"badges":{"roles":false,"awards":false,"fellowships":false,"telemedicine":true,"acceptsNewPatients":false},"topCodings":[],"codingCount":33,"isPromoted":false,"appointmentPhone":null,"appointmentAssistOptIn":null,"appointmentURL":null,"isMediFindAppointment":false,"acceptsMedicare":false,"acceptsNewPatients":false,"telemedicine":true,"biography":"<p>Mark Mattar is a Gastroenterologist in Washington, Washington, D.c.. Dr. Mattar  is highly rated in 11 conditions, according to our data. His top areas of expertise are Ulcerative Colitis, Hemorrhagic Proctocolitis, Crohn's Disease, Colonoscopy, and Endoscopy.</p><p>His <a href=\"#research\">clinical research</a> consists of co-authoring 28 peer reviewed articles and participating in 4 clinical trials. MediFind looks at clinical research from the past 15 years.</p>","conditions":[{"conditionId":218206018,"score":70.96126279484155,"codingName":"Ulcerative Colitis","type":"condition","projectId":5329},{"conditionId":218205810,"score":57.69217454635663,"codingName":"Hemorrhagic Proctocolitis","type":"condition","projectId":2403},{"conditionId":239083805,"score":54.05175322612866,"codingName":"Crohn's Disease","type":"condition","projectId":1420},{"conditionId":218198910,"score":51.13315283934995,"codingName":"Viral Gastroenteritis","type":"condition","projectId":2153},{"conditionId":218201171,"score":51.09514699364457,"codingName":"Pseudomembranous Colitis","type":"condition","projectId":6099},{"conditionId":218204663,"score":47.38311989825503,"codingName":"Necrotizing Enterocolitis","type":"condition","projectId":5993},{"conditionId":218205187,"score":42.37190447569558,"codingName":"Bacterial Gastroenteritis","type":"condition","projectId":5653},{"conditionId":459462324,"score":32.660586318222755,"codingName":"Colitis","type":"condition","projectId":1213},{"conditionId":218192330,"score":31.512581583128256,"codingName":"Diarrhea","type":"condition","projectId":1590},{"conditionId":454151060,"score":29.84251733208542,"codingName":"Colonoscopy","type":"procedure","projectId":6571},{"conditionId":454153058,"score":25.937936527386224,"codingName":"Endoscopy","type":"procedure","projectId":6572},{"conditionId":218195418,"score":22.766154172623445,"codingName":"Gastrointestinal Bleeding","type":"condition","projectId":5830},{"conditionId":218199465,"score":16.733980842474203,"codingName":"Trichohepatoenteric Syndrome","type":"condition","projectId":5265},{"conditionId":218206670,"score":14.57617460501568,"codingName":"Sclerosing Cholangitis","type":"condition","projectId":4763},{"conditionId":218195859,"score":13.741398391842964,"codingName":"Cholangitis","type":"condition","projectId":931},{"conditionId":218154501,"score":9.2955142077014,"codingName":"Anemia","type":"condition","projectId":262},{"conditionId":218206407,"score":8.230783620859972,"codingName":"Familial Adenomatous Polyposis","type":"condition","projectId":1965},{"conditionId":454152779,"score":8.186632825090324,"codingName":"Gastrectomy","type":"procedure","projectId":6385},{"conditionId":454152514,"score":7.848103610865127,"codingName":"Gastrostomy","type":"procedure","projectId":6628},{"conditionId":454153151,"score":7.686671469298053,"codingName":"Diverticular Disease","type":"condition","projectId":6338},{"conditionId":337550196,"score":7.6190476190476195,"codingName":"Venous Thromboembolism (VTE)","type":"condition","projectId":6492},{"conditionId":218178024,"score":7.531423390229072,"codingName":"Mallory-Weiss Syndrome","type":"condition","projectId":3178},{"conditionId":218204312,"score":7.367295695395039,"codingName":"Gardner Syndrome","type":"condition","projectId":2147},{"conditionId":218205225,"score":7.063611490473247,"codingName":"Turcot Syndrome","type":"condition","projectId":5317},{"conditionId":218205503,"score":6.355709236830805,"codingName":"Familial Colorectal Cancer","type":"condition","projectId":1970},{"conditionId":325923956,"score":6.346886153288141,"codingName":"Eosinophilic Colitis","type":"condition","projectId":6412},{"conditionId":440026964,"score":6.233294466784519,"codingName":"Gastroesophageal Reflux Disease (GERD)","type":"condition","projectId":2155},{"conditionId":218201639,"score":6.038948666263681,"codingName":"Colorectal Cancer","type":"condition","projectId":1229},{"conditionId":218196804,"score":5.597815172283525,"codingName":"Celiac Disease","type":"condition","projectId":826},{"conditionId":530138602,"score":5.568317132142467,"codingName":"Irritable Bowel Syndrome (IBS)","type":"condition","projectId":2807},{"conditionId":218197678,"score":5.135072896174391,"codingName":"Stomach Cancer","type":"condition","projectId":5026},{"conditionId":325924091,"score":5.007517732959038,"codingName":"Swallowing Difficulty","type":"condition","projectId":6410},{"conditionId":218205558,"score":5.007517732959038,"codingName":"Painful Swallowing","type":"condition","projectId":3910}],"residencyInstitution":null,"areasOfFocus":[]}