According to our records, this business is located at 25 Orinda Way in Orinda (in Contra Costa County), California 94563, the location GPS coordinates are: 37.8822826 (latitude), -122.1889955 (longitude). Interwest Insurance Service Inc is categorized under Insurance Companies (SIC code 6411). Current estimates show that the unit has a sales volume of $414,000 and staff of approximately 3 people. You can contact the company by phone at (925) 253-1671.