Stockton, California Drug Test Services


Stockton, California Drug Screening & Workplace Testing Services

Why Choose WSI in Stockton, California?

Our Services in Stockton, California

Drug Test

Random Management Programs

Physical Exams

Specialized Testing

Expert Training Programs

Background Check Services

Core Services


Reason for Test


  • Pre-Employment Test
  • Random Test
  • Post-Accident Test
  • Reasonable Suspicion Test
  • Return to Duty Test
  • Follow-up Test
  • Periodic Test

Physicals & Health Testing


  • DOT Physical
  • Physical
    • Respirator Physicals: For workers who handle hazardous substances.
    • Pulmonary Function Test
    • OSHA Medical Questionnaire
    • Lift Test
    • Chest X-Rays
    • Kraus Weber
    • EKG
    • Vision Test
      • Vision Snellen
      • Vision Titmus
      • Vision Ishihara
      • Vision Jager
  • Titer Test
    • Hepatitis A
    • Hepatitis B
    • Hepatitis C
    • TransFERRON Gold Tuberculosis
    • Measles
  • Wellness Testing

Workplace Programs and Training


Additional Services


  • FMCSA Clearinghouse Support
  • Background Checks
    • County Background Search Check
    • State Background Search Check
    • Federal Background Search Check
    • Name Alias Background Search Check
    • Sex Offender Background Search Check
    • OIG Background Search Check
    • SSN Trace Background Search Check
    • Global Terror Watch List Background Search Check
    • Adverse Action Background Search Check Assistance

FMCSA Clearinghouse Compliance Support

Interested? Contact Us

Our Locations in Stockton, California

NameAddressCityStateZIP Code
WSI Testing Location523 East Main Street Stockton California 95202
WSI Testing Location1429 W. FREMONT Stockton California 95203
WSI Testing Location420 Acacia Street Stockton California 95203
WSI Testing Location2021 West March Lane Stockton California 95207
WSI Testing Location2087 Grand Canal Boulevard Stockton California 95207
WSI Testing Location1530 East Hammer Lane Stockton California 95210
WSI Testing Location3663 Arch Rd Stockton California 95215
WSI Testing Location4747 Frontier Way Stockton California 95215
WSI Testing Location10200 Trinity Parkway Stockton California 95219