Conclusion
If you are younger than 65 and you receive SSDI benefits, you can access some Medicare programs. However, you have to wait for 2 years before your healthcare coverage starts. You have to cover your Medicare costs if you receive SSDI benefits. Some of the costs include deductibles, copayments, and premiums. Medicare relinquishes the waiting period for those who have ESRD or ALS.
References
[1] https://www.medicare.gov/what-medicare-covers/what-part-b-covers
[2] https://www.benefits.gov/benefit/4382
[3] https://www.hhs.gov/answers/medicare-and-medicaid/what-is-medicare-part-a./index.html
[4] https://www.medicare.gov/what-medicare-covers/what-part-b-covers
[5] https://www.ninds.nih.gov/amyotrophic-lateral-sclerosis-als-fact-sheet
[6] https://www.mayoclinic.org/diseases-conditions/end-stage-renal-disease/symptoms-causes/syc-20354532