{"_score":0,"docId":"11166345","dateModify":"04/29/2026","personId":11166345,"name":"Yu-ming Chang","displayName":"Dr. Yu-ming Chang","displayNameShort":"Dr. Yu-ming Chang","displayLastName":"Dr. Chang","initials":"YC","familyName":"Dr. Chang","score":9.900722162895091,"yearsOfExperience":18,"issuers":[{"issuerName":"Cigna","personifyId":309961178},{"issuerName":"Wellcare","personifyId":554375005},{"issuerName":"Medicaid","personifyId":554481722}],"insurance":[{"issuerId":309961178,"issuerName":"Cigna","planTypes":["EPO","HMO","PPO"]},{"issuerId":554481722,"issuerName":"Medicaid","planTypes":["OTHER MEDICAID","STATE MEDICAID"]},{"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":"510-437-4004","isUSPrescriber":true,"languages":["English"],"address":{"addressLine1":"1411 E 31st St","city":"Oakland","stateProvince":"California","stateProvinceCode":"CA","country2Code":"US","country":"United States of America","fidelity":1,"latlon":"37.7985416,-122.231653","distance":null,"lat":37.7985416,"lon":-122.231653,"postalCode":"94602","orgPhoneNumber":"510-437-4004","orgWebsite":null,"orgLogo":null,"orgFaxNumber":null,"orgName":"Highland Hospital","healthSystem":{"website":null,"name":null},"locationString":"1411 E 31st St, Oakland, CA, 94602, US","location":"Oakland, CA","staticMapAlt":"1411 E 31st St Oakland, CA","staticMapHref":"https://www.google.com/maps/search/?api=1&query=1411%2Be%2B31st%2Bst%2Boakland%2C%2Bca","staticMapUrl":"https://cdn.medifind.com/maps/api/staticmap?center=1411%2Be%2B31st%2Bst%2Boakland%2C%2Bca&zoom=17&size=600x200&scale=2&maptype=roadmap&markers=size:mid%7Ccolor:0xea4335%7C1411%2Be%2B31st%2Bst%2Boakland%2C%2Bca&key=AIzaSyBjH8KBPQ6X8jWF2C1xp1ZuJ-C4vjsRl2Y&signature=HQ_R7GTHbYStDYnH9ydJuLl3blM="},"addresses":null,"demographics":{"sex":"M"},"distance":null,"distanceValue":null,"distanceUnit":"mi","specialties":["Gastroenterology"],"primarySpecialtyLookup":{"specialty":"Gastroenterology","slug":"gastroenterology","role":"Gastroenterologist"},"image":null,"affiliations":{"practice":["ALAMEDA HEALTH SYSTEM"],"hospitals":[{"name":"Highland Hospital"}]},"primaryOrgName":"Highland Hospital","primaryOrgWebsite":null,"socialMedia":[],"credentials":{"licenses":["Internal Medicine in CA"],"gradInstitution":{"year":"2008","gradYearNumber":"2008"},"trainingInstitution":{}},"credentialCodes":["PHD","MD"],"isDoctor":true,"fellowships":[],"highlyRatedConditionsCount":0,"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":false,"acceptsNewPatients":false},"topCodings":[],"codingCount":4,"isPromoted":false,"appointmentPhone":null,"appointmentAssistOptIn":null,"appointmentURL":null,"isMediFindAppointment":false,"referralRequired":false,"acceptsMedicare":false,"acceptsNewPatients":false,"telemedicine":false,"biography":"<p>Yu-ming Chang is a Gastroenterologist practicing medicine in Oakland, California. He has been practicing medicine for over 18 years.</p><p>His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Esophagitis, Chronic Erosive Gastritis, and Gastrectomy.</p><p>He is actively involved in <a href=\"#research\">clinical research</a>, co-authoring 5 peer reviewed articles.</p>","conditions":[{"conditionId":440026964,"score":11.676567417122808,"codingName":"Gastroesophageal Reflux Disease (GERD)","type":"condition","projectId":2155},{"conditionId":454152779,"score":8.186632825090324,"codingName":"Gastrectomy","type":"procedure","projectId":6385},{"conditionId":239240979,"score":7.4203675738344606,"codingName":"Esophagitis","type":"condition","projectId":5791},{"conditionId":218197902,"score":5.215939818621906,"codingName":"Chronic Erosive Gastritis","type":"condition","projectId":1134}],"residencyInstitution":null,"areasOfFocus":[]}