Mark A Posner, MD Top Doctor 234 Mall Blvd 170 Ste 200 King of Prussia, Pennsylvania, 19406 Phone: 610-962-1047 Company Name: Allergy and Asthma Specialists Doctor Category: Allergy & Immunology Profile Let this business know you found them on Main Line Today's Online Directories. Locations King of Prussia 234 Mall Blvd 170 Ste 200 King of Prussia, Pennsylvania 19406 Claim/Edit Listing