According to our records, this business is located at 4365 Hillcrest Ave. in Antioch (in Contra Costa County), California 94531, the location GPS coordinates are: 37.9822863 (latitude), -121.7656008 (longitude). Companion Pet Hospital is categorized under Emergency Veterinarian Services (SIC code 0742). Known organization owner is Brian Maloney. You can contact the company by phone at (925) 757-2287; the following fax number is also provided: (925) 757-6712.