According to our records, this business is located at 1177 N Park Ave. in Pomona (in Los Angeles County), California 91768, the location GPS coordinates are: 34.0695264 (latitude), -117.7551467 (longitude). St Johns Clinic & Lab is categorized under Testing Laboratories (SIC code 8071). Current estimates show that the unit has a sales volume of $564,000 and staff of approximately 4 people. You can contact the company by phone at (909) 455-2100.