Monthly Part D Contract Number - August

SAS Name

This variable is the Part D contract number for the beneficiary’s Part D plan for a given month (August). CMS assigns an identifier to each contract that a Part D plan has with CMS.


The first character of the contract ID is a letter that indicates the type of plan. If the beneficiary did not have a Part D plan for a given month, this variable will have a value of N, 0, or be null/missing for that month. If the beneficiary changed plans during the year, the value indicates the final, reconciled contract number. For 2006–2012, this variable was always encrypted to comply with CMS privacy rules.

There are 12 monthly variables — where the 01 through 12 at the end of the variable name correspond with the month (e.g., 01 is January and 12 is December).

You need to know both the Part D contract number and plan benefit package (PTD_PBP_ID_XX) to identify the specific plan in which a beneficiary was enrolled.

Source: CMS Common Medicare Environment (CME)


The first character of the contract ID is a letter or number representing the type of plan:
Code Code value
E Employer direct plan (starting January 2007)
H Managed care organizations other than a regional PPO (i.e., local MA-PDs, 1876 cost
plans, Program of All-Inclusive Care for the Elderly (PACE) plans, private fee-forservice plans, or demonstration organization plans)
R Regional preferred provider organization (PPO)
S Stand-alone prescription drug plan (PDP)
X Limited Income Newly Eligible Transition plan (LINET)
N Not Part D Enrolled
0 Not Medicare enrolled for the month
Null/missing Enrolled in Medicare A and/or B, but no Part D enrollment data for the