{"_score":0,"docId":"7959084","dateModify":"04/29/2026","personId":7959084,"name":"Mark Nightengale","displayName":"Dr. Mark Nightengale","displayNameShort":"Dr. Mark Nightengale","displayLastName":"Dr. Nightengale","initials":"MN","familyName":"Dr. Nightengale","score":58.89977954806359,"yearsOfExperience":0,"issuers":[{"issuerName":"Walgreens","personifyId":554390256},{"issuerName":"Health Care Services Corporation","personifyId":554586162},{"issuerName":"Anthem BCBS","personifyId":309961161},{"issuerName":"CommunityCare Oklahoma","personifyId":563472983},{"issuerName":"Meridian Choice","personifyId":554687314},{"issuerName":"TeamCare","personifyId":575357466},{"issuerName":"Cigna","personifyId":309961178},{"issuerName":"Medica","personifyId":309961208},{"issuerName":"Mutual of Omaha","personifyId":563469276},{"issuerName":"CVS Health","personifyId":563473958},{"issuerName":"Medicaid","personifyId":554481722},{"issuerName":"Silverscript","personifyId":563472210},{"issuerName":"Blue Cross Blue Shield","personifyId":309961277},{"issuerName":"Wellcare","personifyId":554375005},{"issuerName":"CareFirst","personifyId":309961147},{"issuerName":"Humana","personifyId":309961191},{"issuerName":"Centene","personifyId":563470711},{"issuerName":"Aetna","personifyId":309961223},{"issuerName":"GlobalHealth","personifyId":554329282},{"issuerName":"Trillium","personifyId":554521922},{"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":309961147,"issuerName":"CareFirst","planTypes":["HMO","POS","PPO"]},{"issuerId":309961178,"issuerName":"Cigna","planTypes":["EPO","HMO","PPO"]},{"issuerId":554329282,"issuerName":"GlobalHealth","planTypes":["INSURANCE PLAN","MEDICARE MAPD"]},{"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":309961191,"issuerName":"Humana","planTypes":["HMO","INDEMNITY","POS","PPO"]},{"issuerId":309961208,"issuerName":"Medica","planTypes":["EPO","HMO","PPO"]},{"issuerId":554481722,"issuerName":"Medicaid","planTypes":["OTHER MEDICAID","STATE MEDICAID"]},{"issuerId":554687314,"issuerName":"Meridian Choice","planTypes":["HMO","INSURANCE PLAN","MANAGED MEDICAID PLAN","MEDICARE MAPD","MEDICARE SNP","MEDICARE-MEDICAID PLAN","OTHER COMMERCIAL","OTHER MEDICARE","OTHER MEDICARE PART D"]},{"issuerId":575357466,"issuerName":"TeamCare","planTypes":["OTHER COMMERCIAL"]},{"issuerId":554521922,"issuerName":"Trillium","planTypes":["MANAGED MEDICAID PLAN","MEDICARE MAPD"]},{"issuerId":309961217,"issuerName":"UnitedHealthcare","planTypes":["EPO","HMO","POS","PPO"]},{"issuerId":554390256,"issuerName":"Walgreens","planTypes":["MEDICARE DISCOUNT CARD","MEDICARE PDP","OTHER MEDICARE"]},{"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":"918-238-4881","isUSPrescriber":true,"languages":["English"],"address":{"addressLine1":"4200 E Skelly Dr Ste 700","city":"Tulsa","stateProvince":"Oklahoma","stateProvinceCode":"OK","country2Code":"US","country":"United States of America","fidelity":2,"latlon":"36.096205,-95.924016","distance":null,"lat":36.7444554,"lon":-95.92900949999999,"postalCode":"74135","orgPhoneNumber":"918-238-4881","orgWebsite":null,"orgLogo":null,"orgFaxNumber":null,"orgName":"Adult Gastroenterology Associates: Tulsa","healthSystem":{"website":null,"name":null},"locationString":"4200 E Skelly Dr Ste 700, Tulsa, OK, 74135, US","location":"Tulsa, OK","staticMapAlt":"Adult Gastroenterology Associates: Tulsa, 4200 E Skelly Dr Ste 700 Tulsa, OK","staticMapHref":"https://www.google.com/maps/search/?api=1&query=Adult%2BGastroenterology%2BAssociates%3A%2BTulsa%2B4200%2Be%2Bskelly%2Bdr%2Bste%2B700%2Btulsa%2C%2Bok","staticMapUrl":"https://cdn.medifind.com/maps/api/staticmap?center=Adult%2BGastroenterology%2BAssociates%3A%2BTulsa%2B4200%2Be%2Bskelly%2Bdr%2Bste%2B700%2Btulsa%2C%2Bok&zoom=17&size=600x200&scale=2&maptype=roadmap&markers=size:mid%7Ccolor:0xea4335%7CAdult%2BGastroenterology%2BAssociates%3A%2BTulsa%2B4200%2Be%2Bskelly%2Bdr%2Bste%2B700%2Btulsa%2C%2Bok&key=AIzaSyBjH8KBPQ6X8jWF2C1xp1ZuJ-C4vjsRl2Y&signature=3pz0Sf-E6FarpKpXXgvhARbzhQU="},"addresses":null,"demographics":{"sex":"M"},"distance":null,"distanceValue":null,"distanceUnit":"mi","specialties":["Gastroenterology"],"primarySpecialtyLookup":{"specialty":"Gastroenterology","slug":"gastroenterology","role":"Gastroenterologist"},"image":null,"affiliations":{"practice":["ADULT GASTROENTEROLOGY ASSOCIATES INC","CREEK NATION HOSPITAL AND CLINICS"],"hospitals":[{"name":"Oklahoma Surgical Hospital, LLC"},{"name":"Saint Francis Hospital South, LLC"},{"name":"Muscogee (Creek) Nation Medical Center"},{"name":"Saint Francis Hospital, Inc"}]},"primaryOrgName":"Adult Gastroenterology Associates: Tulsa","primaryOrgWebsite":null,"socialMedia":[],"credentials":{"licenses":["Internal Medicine in OK"],"trainingInstitution":{}},"credentialCodes":["MD"],"isDoctor":true,"fellowships":[],"highlyRatedConditionsCount":28,"orgLogo":null,"orgWebsite":null,"isPremium":null,"bookOnline":null,"healthSystem":{"website":null,"name":null},"youtubeVideos":[],"profileClaimed":false,"badges":{"roles":false,"awards":false,"fellowships":false,"telemedicine":false,"acceptsNewPatients":false},"topCodings":[],"codingCount":84,"isPromoted":false,"appointmentPhone":null,"appointmentAssistOptIn":null,"appointmentURL":null,"isMediFindAppointment":false,"acceptsMedicare":false,"acceptsNewPatients":false,"telemedicine":false,"biography":"<p>Mark Nightengale is a Gastroenterologist in Tulsa, Oklahoma. Dr. Nightengale  is highly rated in 28 conditions, according to our data. His top areas of expertise are Lower Esophageal Ring, Benign Esophageal Stricture, Familial Adenomatous Polyposis, Gastrectomy, and Colonoscopy.</p>","conditions":[{"conditionId":218190810,"score":61.32993434696048,"codingName":"Lower Esophageal Ring","type":"condition","projectId":5933},{"conditionId":221155784,"score":61.276822412798126,"codingName":"Benign Esophageal Stricture","type":"condition","projectId":5790},{"conditionId":218206407,"score":58.50329729026971,"codingName":"Familial Adenomatous Polyposis","type":"condition","projectId":1965},{"conditionId":325924091,"score":58.4111581947078,"codingName":"Swallowing Difficulty","type":"condition","projectId":6410},{"conditionId":218205558,"score":58.4111581947078,"codingName":"Painful Swallowing","type":"condition","projectId":3910},{"conditionId":218197902,"score":54.13268818629524,"codingName":"Chronic Erosive Gastritis","type":"condition","projectId":1134},{"conditionId":218206265,"score":53.9755877709129,"codingName":"Portal Hypertension","type":"condition","projectId":4344},{"conditionId":221156137,"score":53.80454518972129,"codingName":"Childhood Volvulus","type":"condition","projectId":6270},{"conditionId":218205723,"score":52.70274968868524,"codingName":"Indigestion","type":"condition","projectId":5896},{"conditionId":218204312,"score":52.148306216608475,"codingName":"Gardner Syndrome","type":"condition","projectId":2147},{"conditionId":218200236,"score":50.83190370061269,"codingName":"Gastritis","type":"condition","projectId":2150},{"conditionId":218205225,"score":50.49512810409629,"codingName":"Turcot Syndrome","type":"condition","projectId":5317},{"conditionId":218191191,"score":48.62959617002747,"codingName":"Colonic Malakoplakia","type":"condition","projectId":1232},{"conditionId":440026964,"score":46.61308613765775,"codingName":"Gastroesophageal Reflux Disease (GERD)","type":"condition","projectId":2155},{"conditionId":218192330,"score":46.14102942315185,"codingName":"Diarrhea","type":"condition","projectId":1590},{"conditionId":218199465,"score":46.10800598872251,"codingName":"Trichohepatoenteric Syndrome","type":"condition","projectId":5265},{"conditionId":239240979,"score":44.675799716248754,"codingName":"Esophagitis","type":"condition","projectId":5791},{"conditionId":218200163,"score":40.16920150790324,"codingName":"Hepatitis B","type":"condition","projectId":2413},{"conditionId":242961572,"score":39.10357420264465,"codingName":"Eosinophilic Esophagitis","type":"condition","projectId":6351},{"conditionId":218206018,"score":37.65408093508177,"codingName":"Ulcerative Colitis","type":"condition","projectId":5329},{"conditionId":454152779,"score":29.248374066202594,"codingName":"Gastrectomy","type":"procedure","projectId":6385},{"conditionId":458799435,"score":28.877666605254028,"codingName":"Jaundice","type":"condition","projectId":2822},{"conditionId":459462324,"score":28.13204990216949,"codingName":"Colitis","type":"condition","projectId":1213},{"conditionId":239175553,"score":27.52642741035735,"codingName":"Hepatitis","type":"condition","projectId":2412},{"conditionId":218202380,"score":27.266645758977976,"codingName":"Morning Sickness","type":"condition","projectId":5978},{"conditionId":239083805,"score":26.73183940331741,"codingName":"Crohn's Disease","type":"condition","projectId":1420},{"conditionId":218192027,"score":26.17024138875248,"codingName":"Gas Bloat Syndrome","type":"condition","projectId":2148},{"conditionId":218202355,"score":25.131847185240318,"codingName":"Angiodysplasia of the Colon","type":"condition","projectId":5629},{"conditionId":218196804,"score":24.579074966471737,"codingName":"Celiac Disease","type":"condition","projectId":826},{"conditionId":218198910,"score":24.49760468787541,"codingName":"Viral Gastroenteritis","type":"condition","projectId":2153},{"conditionId":218195418,"score":24.179449031549073,"codingName":"Gastrointestinal Bleeding","type":"condition","projectId":5830},{"conditionId":579326353,"score":23.47278400598468,"codingName":"Visceromegaly","type":"condition","projectId":6267},{"conditionId":325924102,"score":23.435555345054322,"codingName":"Gastric Dysmotility","type":"condition","projectId":6416},{"conditionId":218197090,"score":22.810075635323525,"codingName":"Barrett Esophagus","type":"condition","projectId":477},{"conditionId":218204645,"score":21.783923033602445,"codingName":"Hemorrhoids","type":"condition","projectId":5861},{"conditionId":218201251,"score":21.379382704963003,"codingName":"Proctitis","type":"condition","projectId":4403},{"conditionId":218205187,"score":21.342640307595754,"codingName":"Bacterial Gastroenteritis","type":"condition","projectId":5653},{"conditionId":454151060,"score":20.50901784128776,"codingName":"Colonoscopy","type":"procedure","projectId":6571},{"conditionId":218154294,"score":19.654012477028743,"codingName":"Achalasia","type":"condition","projectId":25},{"conditionId":454153151,"score":19.27304485736185,"codingName":"Diverticular Disease","type":"condition","projectId":6338},{"conditionId":579335040,"score":18.580578548577815,"codingName":"Enlarged Liver","type":"condition","projectId":5778},{"conditionId":454153058,"score":18.292551614952306,"codingName":"Endoscopy","type":"procedure","projectId":6572},{"conditionId":218198222,"score":16.86716314263063,"codingName":"Esophageal Varices","type":"condition","projectId":1901},{"conditionId":579338268,"score":16.61447086032569,"codingName":"Cirrhosis","type":"condition","projectId":3055},{"conditionId":258994912,"score":16.46506011008559,"codingName":"Primary Biliary Cholangitis","type":"condition","projectId":4385},{"conditionId":239159620,"score":16.4270102716256,"codingName":"Encopresis","type":"condition","projectId":5771},{"conditionId":218195552,"score":16.337794135365087,"codingName":"Reynolds Syndrome","type":"condition","projectId":4644},{"conditionId":454152514,"score":16.209929218115743,"codingName":"Gastrostomy","type":"procedure","projectId":6628},{"conditionId":218198339,"score":16.146998751164958,"codingName":"Bowel Incontinence","type":"condition","projectId":5669},{"conditionId":218190385,"score":15.634527635052958,"codingName":"Lymphocytic Colitis","type":"condition","projectId":3107},{"conditionId":218176870,"score":13.800002099210607,"codingName":"Collagenous Colitis","type":"condition","projectId":1215},{"conditionId":218206639,"score":13.6252867376159,"codingName":"Bile Duct Stricture","type":"condition","projectId":5661},{"conditionId":218195212,"score":13.234126257661597,"codingName":"Watermelon Stomach","type":"condition","projectId":5489},{"conditionId":218204663,"score":13.200873012701084,"codingName":"Necrotizing Enterocolitis","type":"condition","projectId":5993},{"conditionId":218201171,"score":13.200873012701084,"codingName":"Pseudomembranous Colitis","type":"condition","projectId":6099},{"conditionId":218193476,"score":13.06411688416898,"codingName":"Helicobacter Pylori Infection","type":"condition","projectId":5857},{"conditionId":218154501,"score":12.85031687138909,"codingName":"Anemia","type":"condition","projectId":262},{"conditionId":579343329,"score":11.113477300305464,"codingName":"Non-Alcoholic Fatty Liver Disease","type":"condition","projectId":2008},{"conditionId":218199034,"score":10.962940785112194,"codingName":"Menetrier Disease","type":"condition","projectId":2196},{"conditionId":337118286,"score":10.947455574749679,"codingName":"Intestinal Cancer","type":"condition","projectId":6482},{"conditionId":325924104,"score":10.275428761409076,"codingName":"Colorectal Polyps","type":"condition","projectId":6406},{"conditionId":218202276,"score":10.157962424519324,"codingName":"Gastroparesis","type":"condition","projectId":5833},{"conditionId":218200775,"score":9.89564527662944,"codingName":"Banti's Syndrome","type":"condition","projectId":470},{"conditionId":218206311,"score":9.50544623146591,"codingName":"Ascites","type":"condition","projectId":5639},{"conditionId":218195434,"score":8.723626350793518,"codingName":"Hepatitis C","type":"condition","projectId":2414},{"conditionId":325923829,"score":8.575011713370861,"codingName":"Exocrine Pancreatic Insufficiency","type":"condition","projectId":6413},{"conditionId":239166530,"score":8.083166540110112,"codingName":"Acute Pancreatitis","type":"condition","projectId":5613},{"conditionId":239116233,"score":7.910059367963862,"codingName":"Childhood Pancreatitis","type":"condition","projectId":6042},{"conditionId":448888088,"score":7.641783140438078,"codingName":"Gallbladder Disease","type":"condition","projectId":6645},{"conditionId":218205810,"score":7.531423390229072,"codingName":"Hemorrhagic Proctocolitis","type":"condition","projectId":2403},{"conditionId":239145760,"score":7.182262496452655,"codingName":"Bile Duct Obstruction","type":"condition","projectId":5660},{"conditionId":218177883,"score":7.104123878415265,"codingName":"Autoimmune Hepatitis","type":"condition","projectId":2416},{"conditionId":239233263,"score":6.936237425668771,"codingName":"Choledocholithiasis","type":"condition","projectId":5704},{"conditionId":239242743,"score":6.933984082260676,"codingName":"Gallstones","type":"condition","projectId":6337},{"conditionId":218201081,"score":6.4827008394629155,"codingName":"Anal Fissure","type":"condition","projectId":5623},{"conditionId":218188605,"score":6.388166138813492,"codingName":"Cholestasis","type":"condition","projectId":937},{"conditionId":218194688,"score":6.222446417451547,"codingName":"Progressive Familial Intrahepatic Cholestasis Type 3","type":"condition","projectId":941},{"conditionId":218192063,"score":6.222446417451547,"codingName":"Progressive Familial Intrahepatic Cholestasis Type 1","type":"condition","projectId":943},{"conditionId":218205131,"score":6.222446417451547,"codingName":"Progressive Familial Intrahepatic Cholestasis Type 2","type":"condition","projectId":940},{"conditionId":351603269,"score":6.143626329179519,"codingName":"Cholangiocarcinoma (Bile Duct Cancer)","type":"condition","projectId":930},{"conditionId":218205503,"score":6.012034467216336,"codingName":"Familial Colorectal Cancer","type":"condition","projectId":1970},{"conditionId":218184900,"score":6.001212048530187,"codingName":"Hereditary Pancreatitis","type":"condition","projectId":4081},{"conditionId":342113444,"score":5.965499962999988,"codingName":"Urea Cycle Disorders (UCD)","type":"condition","projectId":6534},{"conditionId":579333196,"score":1.6509304317100297,"codingName":"Nonalcoholic Steatohepatitis (NASH)","type":"condition","projectId":6342}],"residencyInstitution":null,"areasOfFocus":["Non-Alcoholic Fatty Liver Disease","Nonalcoholic Steatohepatitis (NASH)"]}