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Correcting Low-Income Subsidy Benefit Level Based on Best Available Evidence (BAE)

 Medicare uses data from states and Social Security to determine the level of Extra Help benefits (also called the low-income subsidy or LIS) for which a person may qualify. This Extra Help includes assistance paying monthly premiums and reduces or eliminates copayments. If Medicare doesn’t have the right information, its systems may show incorrect copayment levels, or they may not show that an eligible person qualifies for Extra Help. This discrepancy may happen when the state hasn’t successfully reported a person’s Medicaid or institutionalized status.

Medicare drug plan sponsors must use "Best Available Evidence" (BAE) to correct information about a person’s level of Extra Help. Once plans get BAE documentation, they can’t charge a person more than the appropriate amount, which changes each year. See the 2024 benefits chart for details). People with Medicaid who live in an institution (like a nursing home) shouldn’t need to pay for their covered drugs.

If a person thinks they qualify for Extra Help because they have Medicaid, but they don’t have or can’t find the BAE documentation and ask for help, the plan must refer the person’s information to Medicare to confirm the person qualifies.


How to use BAE

You can help a person make sure he or she pays the right amount for his or her prescriptions. First, be sure the person has the following information available:
•   Name
•   Date of Birth
•   Medicare Beneficiary Number or MBI (Medicare Beneficiary Identifier)

Then, simply follow these steps:
Step 1. Collect documentation that meets the definition of BAE (see the chart below).
Step 2 Send the BAE documentation to the plan.
Step 3 If the person can’t find or doesn’t have any BAE documentation, contact his or her plan and specifically ask for help getting the documentation.

Step 1: Collect BAE documentation

You can provide any of the following documents to plans to verify a person’s eligibility for Extra Help and help the plan correct the person’s low-income subsidy status or copayment level:
•   Automatic enrollment notice from Medicare on yellow or green paper
•   Notice from Medicare on purple paper that says the person automatically qualifies for Extra Help •   Notice from Medicare on orange paper that says the amount of the person’s copayment will change next year
•   Extra Help "Notice of Award" from Social Security
•   Other proof that the person qualifies for Extra Help, such as an award letter from Social Security which proves the person has Supplemental Security Income (SSI)

You can also provide any of the documents listed below as proof that the person qualifies for Extra Help.

Proof of Medicaid and Institutionalization

 •   An invoice from the institution showing Medicaid payment for the person for at least a full calendar month
•   A copy of a state document that confirms Medicaid payment to the institution for the person for a full calendar month
•   A print-out from the state’s Medicaid systems showing the person’s institutional status for at least a full calendar month

Proof of Medicaid

•   A copy of the person’s Medicaid card that includes the person’s name and eligibility date
•   A copy of a state document that confirms active Medicaid status
•   A print-out from the state’s electronic enrollment file or from the state’s Medicaid systems showing Medicaid status
•   Other documentation provided by the State Medical Assistance (Medicaid) office showing Medicaid status


Step 2: Submit BAE documentation to the plan

Call the person’s plan or visit the plan’s Web site to find out where to mail or fax the documents, or to see if they can be sent by e-mail.

As soon as the plan gets any one of the BAE documents, it must make sure the person pays no more than the appropriate copay which changes each year. See: 2024 copay details. If the documents also verify the person has Medicaid and lives in an institution, the plan must make sure the person pays nothing for their prescription drugs.

The plan must also work with Medicare to correct the discrepancy in their systems. Until the problem is corrected, the plan must make sure the person continues to be charged only the corrected cost-sharing amounts without having to resubmit documentation each month.


Step 3: Contact the plan for more help

If a person can’t locate any of the documents listed above as proof of their Medicaid or institutional status, contact the plan and ask for help getting the documentation. The plan will refer the person’s information to Medicare to verify his or her status. When you contact the plan, be sure to tell them how many days of medication he or she has left. The plan will include this information in its request to Medicare so Medicare can respond before he or she runs out of medication, if possible. The plan generally must refer requests to Medicare within 1 business day of getting them. Once Medicare responds, the plan must attempt to notify him or her of the results within 1 business day. The request will take anywhere from several days to up to 2 weeks to process, depending on the circumstances, including the urgency of his or her needs for medication.


If the plan won’t fix the problem

File a complaint with Medicare if the plan does any of the following:

•   Doesn’t correct a problem to make sure the person pays the right amount
•   Doesn’t work with you to help get proof of Medicaid or institutional status
•   Fails to respond within normal timeframes

To file a complaint, call 1-800-MEDICARE (1-800-633-4227). TTY users should call 1-877-486-2048.


How a person can get costs back if they have been paying too much

If a person wasn’t already enrolled in a Medicare drug plan and paid for prescriptions since they qualified for Extra Help, they may be able to get back a part of what they paid. They should try to locate their receipts. Then, they should call their plan or Medicare’s Limited Income Newly Eligible Transition (NET) Program at 1-800-783-1307. TTY users should call 1-877-801-0369.

Also see: CMS Guide to LIS Mailings for details on these and other mailings

If you receive Extra-Help (also known as LIS) or are dual eligible for Medicare and Medicaid, there are Medicare Prescription Drug plans in your state that will qualify for the $0 monthly premium. Click on your state below to see PDP plans that qualify for the $0 premium:
AK  AL  AR  AZ  CA  CO  CT  DC  DE  FL  GA  HI  IA  ID  IL  IN  KS  KY  LA  MA  MD  ME  MI  MN  MO  MS  MT  NC  ND  NE  NH  NJ  NM  NV  NY  OH  OK  OR  PA  PR  RI  SC  SD  TN  TX  UT  VA  VT  WA  WI  WV  WY 


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