National Occupational Health Services

[ Occupational Testing | Medical Surveillance | Drug & Alcohol Testing ]

Call us toll-free... 800-900-6647

DNA Testing

NOHS is partnered with an American Association of Blood Banks (AABB) accredited lab to provide confidential DNA testing. We are committed to providing our clients with the highest standards of testing and results. There are less than 50 laboratories in the world which are AABB accredited parentage testing facilities and we are proud to offer this service with an accredited lab. DNA testing will assist you in efforts to determine relationships for:
  • Paternity
  • Maternity
  • Grandparentage
  • Immigration Petitions
  • Sibling Relationships
  • Adoption
  • Ancestry
  • Twins: Identical vs. Fraternal 

    DNA Testing-An Introduction for Non-Scientists

    FAQ for DNA Paternity Testing

    DNA Testing Informational Brochure
  • National Occupational Health Services
    Mailing Address
    6848 East 41st Street
    Tulsa, Oklahoma 74145
    918-794-4777 (phone) 800-900-6647 (toll-free) 918-794-4777 (fax)