According to our records, this business is located at 4168 Nameoki Rd. in Granite City (in Madison County), Illinois 62040, the location GPS coordinates are: 38.7346922 (latitude), -90.1209932 (longitude). William H Chen & Assoc is categorized under Dentists (SIC code 8021). Current estimates show that the unit has a sales volume of $1,188,000 and staff of approximately 12 people. You can contact the company by phone at (618) 931-2025.