I am considered low income and I am on Medicare
Yes, you may be able to receive help. your state may pay your Medicare premiums and, maybe other Medicare costs that you are normally responsible for such as deductibles and coinsurance .
what about medicare part plans A and B and services received?
People with Medicare Parts A and Part B can choose to receive all of their health care services through plans that are offered by private companies and approved by Medicare . If you need more info you can read Medicare's page.