1.  Please make sure that your paper bill matches the example shown on the lower right portion of this page.  

We are Williams Trotter and Associates DBA Clinical Pathology Associates in Abilene, TX.  We are independent and NOT affiliated with CPL or CPA in Austin.

2.  Please make sure you enter the Invoice number and all contact information correctly so that your account will be credited.  If you submit a partial payment, your next bill will reflect your remaining balance. 


3.  Please allow up to 24 business hours for the payment to be credited to your account.  Once the transaction is complete, you will receive an email confirmation.  Please call us if there are any issues regarding your payment, we are happy to assist you.  


4.  Please temporarily disable any Pop-up Blockers so you may receive your confirmation of payment.  You will be re-directed to a secure url to complete the transaction.  Apple Mobile Safari browser will not work.  Apple Mobile devices do not adhere to  W3C standards and do not support it.


Please make sure that Williams, Trotter & Associates DBA Clinical Pathology Associates, Abilene, TX is your provider!


If you do not have an invoice number on your bill, please call us during business hours M-F.

  1-800-478-9341 or 325-670-6500

Mobile Apple devices, including iPhones, do not currently support our Secure Online Bill Pay Portal.