{"_score":0,"docId":"10920821","dateModify":"04/29/2026","personId":10920821,"name":"John B. Constantine","displayName":"Dr. John B. Constantine","displayNameShort":"Dr. John Constantine","displayLastName":"Dr. Constantine","initials":"JC","familyName":"Dr. Constantine","score":12.69613406640784,"yearsOfExperience":0,"issuers":[{"issuerName":"Fallon","personifyId":309961225},{"issuerName":"Neighborhood","personifyId":554355454},{"issuerName":"Medicare","personifyId":554417855}],"insurance":[{"issuerId":309961225,"issuerName":"Fallon","planTypes":[]},{"issuerId":554417855,"issuerName":"Medicare","planTypes":["INSURANCE PLAN","MANAGED MEDICAID PLAN","MEDICARE MAPD","MEDICARE PDP","MEDICARE SNP","MEDICARE-MEDICAID PLAN","OTHER MEDICARE PART D"]},{"issuerId":554355454,"issuerName":"Neighborhood","planTypes":["MANAGED MEDICAID PLAN","MEDICARE ASSISTANCE PROGRAM","MEDICARE-MEDICAID PLAN","OTHER COMMERCIAL"]}],"phone":"978-256-5600","isUSPrescriber":true,"languages":["English"],"address":{"addressLine1":"19 Village Sq","city":"Chelmsford","stateProvince":"Massachusetts","stateProvinceCode":"MA","country2Code":"US","country":"United States of America","fidelity":1,"latlon":"42.59987599999999,-71.35076169999999","distance":null,"lat":42.59987599999999,"lon":-71.35076169999999,"postalCode":"01824","orgPhoneNumber":"978-256-5600","orgLogo":null,"orgFaxNumber":"9787030250","healthSystem":{},"locationString":"19 Village Sq, Chelmsford, MA, 01824, US","location":"Chelmsford, MA","staticMapAlt":"19 Village Sq Chelmsford, MA","staticMapHref":"https://www.google.com/maps/search/?api=1&query=19%2Bvillage%2Bsq%2Bchelmsford%2C%2Bma","staticMapUrl":"https://cdn.medifind.com/maps/api/staticmap?center=19%2Bvillage%2Bsq%2Bchelmsford%2C%2Bma&zoom=17&size=600x200&scale=2&maptype=roadmap&markers=size:mid%7Ccolor:0xea4335%7C19%2Bvillage%2Bsq%2Bchelmsford%2C%2Bma&key=AIzaSyBjH8KBPQ6X8jWF2C1xp1ZuJ-C4vjsRl2Y&signature=sZHhUx1y8oVr3rlBMwhxLWHymhU="},"addresses":null,"demographics":{"sex":"M"},"distance":null,"distanceValue":null,"distanceUnit":"mi","specialties":["Ophthalmology"],"primarySpecialtyLookup":{"specialty":"Ophthalmology","slug":"ophthalmology","role":"Ophthalmologist"},"image":null,"affiliations":null,"socialMedia":[],"credentials":{"licenses":["Specialist in MA"],"trainingInstitution":{}},"credentialCodes":["MD"],"isDoctor":true,"fellowships":[],"highlyRatedConditionsCount":0,"orgLogo":null,"orgWebsite":null,"isPremium":null,"healthSystem":{},"hasPublication":true,"youtubeVideos":null,"badges":{"roles":false,"awards":false,"fellowships":false,"telemedicine":false,"acceptsNewPatients":false},"topCodings":[],"codingCount":7,"appointmentPhone":null,"appointmentURL":null,"isMediFindAppointment":false,"referralRequired":false,"acceptsMedicare":false,"acceptsNewPatients":false,"telemedicine":false,"biography":"<p>John Constantine is an Ophthalmologist practicing medicine in Chelmsford, Massachusetts.</p><p>His clinical expertise encompasses Conjunctivitis (Pink Eye), Glaucoma, Cataract, and Eyelid Bump.</p><p>He is actively involved in <a href=\"#research\">clinical research</a>, co-authoring 2 peer reviewed articles.</p>","conditions":[{"conditionId":345746895,"score":15.096618357487923,"codingName":"Conjunctivitis (Pink Eye)","type":"condition","projectId":1324},{"conditionId":239253160,"score":12.66478342749529,"codingName":"Glaucoma","type":"condition","projectId":2213},{"conditionId":221156323,"score":12.398866175345729,"codingName":"Cataract","type":"condition","projectId":802},{"conditionId":325924105,"score":9.427609427609427,"codingName":"Eyelid Bump","type":"condition","projectId":6460},{"conditionId":239149593,"score":8.259587020648967,"codingName":"Meibomianitis","type":"condition","projectId":5955},{"conditionId":239252005,"score":7.312722948870393,"codingName":"Diabetic Retinopathy","type":"condition","projectId":4631},{"conditionId":530214569,"score":6.909361069836553,"codingName":"Interstitial Keratitis","type":"condition","projectId":2868}],"residencyInstitution":null}