Contact the DoctorsThank you.Your message was successfully sent. We will get back to you as soon as possible. News
![]() Contact usSet your appointment with the Philadelphia Orthodontists.If you have questions about any of Philadelphia Orthodontics’ dental or orthodontist services, please feel free to contact us. Philadelphia Orthodontists offers two locations for your convenience – one in downtown Center City, Philadelphia by Rittenhouse Square, and the other in Lawrenceville, New Jersey. Our Center City, Philadelphia Orthodontics Office![]() Our Center City office, on the top floor of the Medical Arts Building, is located at the corner of 16th and Walnut Streets (the entrance is on 16th Street). The reception area and our treatment rooms have beautiful views of our city. This is the most geographically central and convenient location in the city, situated two blocks from stops of the “Hi-speed” line at 16th and Locust Streets and Septa service Suburban Station. For drivers, we recommend street parking, or parking in one of many convenient area parking lots Business hoursMonday – Friday: 9 A.M. – 5:00 P.M. Center city address1601 Walnut Street Telephone numbersPhone: (215) 665-1845 How to get thereOur Lawrenceville, New Jersey Orthodontics Office![]() Our new Lawrenceville office is conveniently located in the geographic center of Mercer County, easily reached by Routes 95, 295 or Route 1. This is one of the most beautiful and comfortable dental offices in the country, with “State of the Art” dental technology. We have three reception areas, including an entertainment area (Big Screen DVD, Fussball, Nintendo, Ms. Pac Man) and a “quiet room” with computer and printer, for those who wish to read or study. Lawrenceville Office HoursMonday – Friday: 9 A.M. – 6:00 P.M. Lawrenceville Address39 Franklin Corner Drive Telephone numbersPhone: (609) 896-9585 How to get thereYour next step...Drs. Roberts & de Marsche welcome new patients.Call Drs. Roberts and de Marsche at (215) 665-1845 (Philadelphia office) or (609) 896-9585 (Lawrenceville office) or send us a message from the contact form located at the top-right corner of this page to request your free orthodontic consultation. The doctors work closely with many general dentists and dental specialists. If you have no dentist, we can help find a general dentist well-suited for you. Roberts & de Marsche OrthodonticsWilliam W. Roberts III, D.M.D & Tanja J. de Marsche, D.M.D |