Scroll Top

Contact Us

Have a question?

Just ask! We are committed to our providers and their patients, and we will be happy to help you.

Business Hours
8:00 am – 4:00 pm (Pacific Time)
Monday through Friday, except the following major holidays:

  • New Year’s Day (1st of January)
  • Martin Luther King Jr. Day (Third Monday in January)
  • Presidents’ Day (Third Monday in February)
  • Memorial Day (Last Monday in May)
  • Juneteenth (19th of June)
  • US Independence Day (4th of July)
  • Labor Day (First Monday in September)
  • Thanksgiving Day (Fourth Thursday in November)
  • Day after Thanksgiving (Following Friday)
  • Christmas Day (25th of December)

All Departments
Phone: 425-251-0596
Toll Free: 800-878-3787

Client & Technical Services
Fax: 425-656-2871
Fax: 425-251-0637
Email: [email protected]

Email: [email protected]

Patient Billing
Fax: 425-264-0614
Email: [email protected]

Main Office
840 S. 333rd Street
Federal Way, WA 98003

Test Kit Drop Off & International Shipping
DiagnosTechs, Inc.
Sample Processing Laboratory
840 S. 333rd Street
Federal Way, WA 98003


DiagnosTechs is dedicated to continuous improvement and exceeding quality standards.
Here are two ways to provide feedback about patient safety and quality of care or services:

  1. [email protected]
  2. Laboratory Quality Assurance (LQA)