Advanced Obstetrics and Gynecology has teamed up with Hunterdon Healthy Connections-Patient Portal to offer you the benefit of communicating with us online in addition to the telephone and in person. ... 1100 Wescott Dr Ste 203, Flemington, NJ 08822 908-806-0080. 1390 US Highway 22 Ste 104, Lebanon, NJ 08833 ... Advanced Obstetrics & Gynecology ....