Allan J Horowitz DMD 170 N Henderson Rd Ste 304 King of Prussia, Pennsylvania, 19406 Phone: 610-265-6777 Company Name: Allan J Horowitz DMD Dentist Category: General-Family Dentistry Profile Let this business know you found them on Main Line Today's Online Directories. Locations King of Prussia 170 N Henderson Rd Ste 304 King of Prussia, Pennsylvania 19406 Claim/Edit Listing