Mercy Care Advantage

Our Provider Relations department serves as a liaison between Mercy Care Advantage and the provider community. Provider Relations is responsible for training, maintaining and strengthening the provider network in accordance with regulations.

If you need to check on the status of a claim, please use our secure web portal, MercyOneSource.   You may access MercyOneSource by clicking on the link in the top upper right hand corner of this web page under Find A Provider. You must be registered under MercyOneSource to access it. In order to register, please fill out our MercyOneSource Registration Form under the Forms section of our website. Please fax to the below number to start the process.  

If you have questions regarding a processed claim, either paid or denied, please contact our Customer Service department at 602-586-1730 or 1-877-436-5288, Express Service Code 626. Non-participating providers should contact our Customer Service department for all issues, in addition to claims issues. 

You can fax directly to Provider Relations at 1-860-975-3201 the following information: 

  • Notifying the plan of changes to your practice
  • Tax ID change
  • Recent practice or provider updates
  • Termination from practice
  • MercyOneSource Registration Form 

Please feel free to contact our Provider Relations department for the following:

  • Questions regarding the MercyOneSource Registration Form or to check on enrollment status
  • Credentialing requirements
  • Provider Education 

Our Provider Relations department may be reached by calling 602-586-1730 or 1-877-436-5288, Express Service Code 631.

For your convenience, below you can find a listing of your assigned Provider Relations representative, as well as their detailed contact information: 


Member Benefits

Before you order lab work or screening tests, schedule a surgery or prescribe medication, be sure you understand what is covered by Mercy Care Advantage, what’s not and what requires prior authorization.

Summary of Benefits

Additional Benefits

Member Information

You can find information about Advance Directives, Care Management, Disease Management and forms available to you and your MCA patients.

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Member Materials

Access MCA materials for the current plan year.

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Grievances, Coverage Determinations & Appeals

Learn more about our processes for Part C and Part D coverage determinations, appeals and grievances.

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MCA Plan Information

Find information that will help you understand your patient's health plan and answers to common questions.

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