Doctors in Phillipsburg, Warren County, New Jersey IllinoisHome / Doctors in Phillipsburg, Warren County, New Jersey Illinois Near Me In: Phillipsburg, Warren County, New Jersey (City) Sten I. Kjellberg, MDSten I. Kjellberg, MD is a Oncologist in Lopatcong Township, New Jersey in good standing. Please leave a review of Sten I. Kjellberg, MD if you have been a patient of Sten I. Kjellberg, MD. Sten I. Kjellberg, MD, pleaseType: PhysicianPhone: (610) 861-8080Leave a Google Review No Reviews View all