New Customers:

  1. For your first test order, please call us at 866-788-9007.
  2. You will be given instructions on filling out the requisition form, as well as the details of our testing, processing, and reporting procedures.
  3. Turnaround time for a report from our CLIA certified, CAP accredited laboratory is typically within two to three weeks of receiving the specimen.
  4. You can download a requisition form and sample report for any of our tests via the Test Menu on the right side of this page.

Returning Customers:

  1. Download the appropriate requisition form via the Test Menu on the right side of this page.
  2. Fill out the requisition form, sign it, and fax the form and applicable documents to 866-712-5207.
  3. You can download a sample report for any of our tests via the Test Menu on the right side of this page.

 Receiving Test Results:

  1. Reports are issued via fax followed by hard-copy mailing.
  2. For customers who prefer to receive test reports through our HIPAA-compliant secure Physician’s Portal (link at top corner of this page), please contact Customer Service at 866-788-9007 for instructions and login credentials.
Note: Only a Physician, Physician’s Assistant or Nurse Practitioner can order a Castle test.