Testing Locations » Texas » South Padre Island TX » Spi Clinic, Pllc – Spi Clinic, Pllc – Drug Testing Only (Preferred) Spi Clinic, Pllc – Spi Clinic, Pllc – Drug Testing Only (Preferred) Spi Clinic, Pllc – Spi Clinic, Pllc – Drug Testing Only (Preferred)3808 Padre BlvdSouth Padre Island, TX 78597-7004 United States