Medemerge, Greenbrook is an urgent care center in Green Brook Township and is open today from 8:00AM to 6:00PM.They are located at 1005 Washington Ave and open 7 days per week.. Patients have used words like "bedside manner" to describe their experience at Medemerge, Greenbrook which has garnered an average rating of 2.9. out of 5.. Nationally, we are seeing urgent care patients wait an ....