Oklahoma Human Services offers programs to help low-income seniors and persons with disabilities to apply for two programs that help pay for their Medicare expenses:

Low Income Subsidy (LIS) or "Extra Help"
If you are on Medicare and have trouble paying for your prescription medications you might qualify for this program
Eligibility varies depending on marital status, income, and resources
Everyone is encouraged to inquire

Medicare Savings Program
Depending on your particular situation you might qualify to have your Part A and/or Part B premiums reduced or eliminated
Diabetes Supplies & Services

Direct link: https://oklahoma.gov/okdhs/medicareandmeds/mippa.html

Hotlines:

Adult Abuse 800-522-3511
Child Abuse 800-522-3511
Child Support Customer Assistance 800-522-2922

Developmental Disabilities:
North and West Oklahoma 800-522-1064
North and East Oklahoma 800-522-1075
Central and South Oklahoma 800-522-1086

Website link to other hotline numbers:
http://www.okdhs.org/contactus/pages/DHSHotlines.aspx