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DecisionDx-GBM

Thank you for your interest in the DecisionDx-GBM test.


The process for ordering the DecisionDx-GBM test requires the physician to perform two steps.

 Ordering 

 Physician's 

 Actions 
 STEP 1:
 Download the Requisition and Instructions form located to the right.

 STEP 2:
 Complete the requisition form, sign, and fax with a copy of the patient's insurance information to 1-866-712-5207. 
   Requisition Form  

Requisition Form
 Castle 

 Biosciences' 

 Actions 
 STEP 3:
 Castle to initiate benefits investigation, if indicated (not appropriate for Medicare patients);
 Castle to obtain and process patient specimen.

 STEP 4:
 Patient results will be sent to the physician(s) indicated on the Requisition Form.