According to our records, this business is located at 3503 Halfmoon Ln. in Concord (in Contra Costa County), California 94518, the location GPS coordinates are: 37.94513 (latitude), -122.011583 (longitude). Karen Mahshi Assoc is categorized under Garden Planning Services (SIC code 0781). Known organization manager is Karen Mahshi. Current estimates show that the unit has a sales volume of $252,000 and staff of approximately 3 people. You can contact the company by phone at (925) 681-1551.