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The CMS Medicaid Analytic eXtract (MAX) data include enrollment information for all Medicaid enrollees within a state, regardless of whether the beneficiary receives all services under FFS or is enrolled in managed care organizations (MCOs). All FFS utilization and any reported MCO utilization is also included in MAX files.

Medicaid beneficiaries can be enrolled in several different types of MCOs at the same time. For example, a beneficiary may be enrolled in one managed care plan for dental care and another managed care plan for behavioral health, while also receiving their medical care under FFS. Another beneficiary could receive all of their care through a comprehensive MCO.

The MAX Personal Summary (PS) includes three groups of variables that identify MCO enrollees.

The most detailed information is in this group:

  1. Pre-Paid Plan Enrollment Group

Summarized enrollment information is in each of these two variable groups:

  1. Pre-Paid Plan Months Count Group
  2. Medicaid Managed Care Combination Group

Each group includes several variables and/or repeating variables.

1. Pre-Paid Plan Enrollment Group

This group includes two different variables:

The PS file can include up to four different type/identifier pairs in each month of the file year. Using the Eligible Pre-Paid Plan Identifier variable, it is possible to determine the exact name of the plan by using the CMS downloadable crosswalk files that are available on the CMS website for each calendar year of MAX data.

Researchers can use the Eligible Pre-Paid Plan Type variable to identify Medicaid beneficiaries with comprehensive FFS coverage. When the value of this variable is 02, 03, 07 or 88, beneficiaries’ medical claims for non-pregnancy services were paid FFS.

2. Pre-Paid Months Count Group

This group includes seven variables that each provide a month count for a type of plan. The seven variables are:

The month count variable only provides a count of the total months of enrollment for each of these specific plan types in the file year.

Medicaid beneficiaries whose medical care for non-pregnancy related services were paid FFS, will have a month count of zero for comprehensive, long term care and PACE plans.

3. Medicaid Managed Care Combination Group

This group includes one variable that repeats for each month of the calendar year of the file. The variable is:

The Managed Care Combinations are created during MAX production by re-coding the data available in any of the four occurrences of Eligible Pre-Paid Plan Type. The combinations represent groupings that are frequently used by researchers. The variable documentation describes how the data from the Eligible Pre-Paid Plan Type maps to each value of the Managed Care Combinations.

Beneficiaries who received comprehensive medical services under the FFS payment system are identified in each month by Managed Care Combination values of 02, 03, 04, 10, 11, 13, 14 and 16.