Meridian Health Plan of Illinois is the top-rated Medicaid HMO in Illinois with a rating of 4 out of 5 in NCQA's Medicaid Health Insurance Plan Ratings 2015–2016.




Services at

866-606-3700 (TTY 711), Monday - Friday from 8 a.m. - 8 p.m.

with any questions. You can also use our Live Chat for fast and friendly service (on the left side of the page).



Health Library

The Health Library is a free resource exclusively for Meridian members and providers where you can get tips to help your patients manage their health.



You’ve got questions, we’ve got answers. If there’s a question you can’t find the answer to on our website, call


Services at




How do I submit a claim?

Visit our Billing & Payments page for more information.

What are the advantages of becoming a Meridian Provider?

Learn more about what Meridian can do for you on our Why Meridian? page.

How can I become a Meridian provider?

To become a contracted Meridian provider, start here or call Provider Services at





In order to ensure and maintain a high level of medical care, all providers are credentialed by Meridian Health Plan. Appropriate contracts and applications are provided along with a questionnaire regarding office function, personnel and the potential capacity to service more members. 

What are my contract options as a health care provider in the Meridian network?

As a participating Meridian Health Plan provider, do I have to accept new patients?

No. Providers can choose whether or not they will accept new patients.

If I become a contracted PCP, can I limit the amount of patients I accept?

Yes, contracted PCPs with Meridian Health Plan are given complete control over their panels. They can determine the number of patients they will accept, as well as any gender or age restrictions.

Who should I contact if I have questions regarding my Provider affiliation status or general questions related to Meridian? 

Please call Meridian Provider Services at



How can I check a member's eligibility?

All Meridian network providers can use our secure, online Provider Portal to determine member eligibility, view claim status, self-report HEDIS® measures and much more. All free of charge. To learn more about this time-saving tool please call Provider Services at 888-773-2647. You can call Member Services at 888-437-0606 to determine member eligibility.

How can I request supplies for our diabetic members?

MHP members with diabetes are eligible for the Advocate Redi-Code (requires no coding) glucometer from Healthy Living Diabetic. For a member to receive a glucometer, the PCP must complete a Healthy Living Medical Supply Form and fax it to Healthy Living Diabetic at 866-779-8511. PCPs may also call 866-779-8512. 

The initial glucometer is shipped to the member within 24 hours of receipt of a completed request. The glucometer package includes:

  • Blood glucose monitor
  • Check strip
  • Carrying case
  • Test strips (25)
  • Normal control
  • Lancing device
  • User guide
  • Patient record diary
  • Instructional video
  • Managed care letter of introduction

For more information on the Advocate Redi-Code Glucometer, please click here

Do PCPs need a referral to see a

Meridian Health Plan

Plan member not assigned to their panel?

No. In-Network PCPs do not need a referral to see a Meridian Health Plan member, even if the member is not assigned to them.

What is the Provider Portal?

The Provider Portal is a secure, online tool that allows PCPs, specialists and hospitals to view and create online authorizations and referrals, view specific preventive health care services needed for patients, and verify eligibility and status claims online. The Provider Portal is a real-time information system available to all contracted providers free of charge.

What is the behavioral health outpatient benefit for MHP members?

Twenty (20) outpatient visits per calendar year.

Do I need to obtain an initial authorization?


How do I notify the health plan of additional visits after the 3rd visit?

Meridian requires notification if you anticipate the member will require more than 3 visits for treatment. The notification must include the DSM-IV diagnosis, reason for continued treatment and status of PCP notification. Please fax the completed Continued Outpatient Treatment Notification Form to 313-202-1268.

Do I need to obtain authorization for psychological testing?

No. Up to 5 hours of testing is permitted using either CPT code 96101 or 96102. The tests and measures must be rendered by full, limited-licensed, or temporary-limited-licensed psychologists.

Can both the psychiatrist and the therapist who are engaged in the same episode of care each bill for a 90801?

No. Meridian reimburses for one "Psychiatric diagnostic interview examination" (CPT Code 90801) per year per provider group.

If a member appears to be suffering from a Severe Mental Illness (SMI) how do I connect the member to Community Mental Health (CMH)?

Call the Meridian Behavioral Health Department at 888-222-8041 to notify us of your evaluation. Our staff will coordinate the referral services with the member's CMH center.

When should I coordinate care with the PCP via written notification?

After the initial assessment and for ongoing coordination after the 3rd visit by sharing the COTNF.

Page Last Modified: 10/9/2015 8:51:21 AM