Provider Bill Pay

DLO Customer Satisfaction Survey

Tell us how we're doing. We want to know. DLO strives to provide the most state-of-the-art clinical testing with excellent customer satisfaction. Please help us accomplish that goal by completing the following survey based on our performance from the past three months.

We appreciate your feedback.

Online Bill Paye-Invoice

DLO's Online Invoice and
Payment Processing Service

Through our affiliation with Quest Diagnostics, DLO is proud to offer an online invoice and payment processing services to Oklahoma healthcare providers.

Login to your eInvoice account.


Not enrolled?

e-Invioce can help you ...

Save Time
Our online service lets you eliminate the need to enter data, file, copy and scan our invoices. This leads to reduced processing time and increased efficiencies in adjustments, approval routing and invoice processing.

Take Control
Our online service offers you broad flexibility in managing the entire accounts payable process, ranging from optimized workflow and approval processes to improved cycle time and cash management.

Benefit from the Convenience
Our online service makes processing our invoices easier than ever.

eInvoice allows you to:

  • Access your statements and invoices anytime
  • Perform quick audits
  • Download invoices into your system
  • Improve data management and analysis
  • Reduce clerical handling and manual check processing

To enroll for this service, visit Physicians and Hospital Payment Services,

Billing Questions

If you have a question regarding a DLO bill or statement, please call DLO client services department at 1-888-321-0155.