SEER-Medicare: Data Limitations

Medicare data do not include:

  • claims for HMO enrollees;
  • care provided in other settings, such as the Veterans Administration;
  • care for persons with Medicare as the secondary payer (in some cases);
  • reimbursement for covered services not captured by the Medicare data, e.g. out of pocket expenditures; or
  • coverage provided by Medigap policies.

Some of the services not covered by Medicare:

  • long term care at home or in a nursing home; and
  • routine physicals.