Donna M Jankiewicz DMD 227 Lancaster Ave Fl 3 Devon, Pennsylvania, 19333 Phone: 610-254-9575 Company Name: Your Main Line Dentist Dentist Category: General-Family Dentistry Profile Let this business know you found them on Main Line Today's Online Directories. Locations Devon 227 Lancaster Ave Fl 3 Devon, Pennsylvania 19333 Claim/Edit Listing