One requirement, for the income exclusion, is that it must be paid through a "Medicaid Waiver Program". Another requirement is that you live with the care recipient .
A W-2 is usually issued for these type of payments. Sometimes a 1099-Misc. The 1099-NEC is new this year, so the home service company may or may not be right to issue it. You may want to ask them if the program you are in qualifies for notice 2014-7.
A new development is that even if it is not taxable, the income may qualify for the Earned Income Credit. See https://ttlc.intuit.com/community/tax-credits-deductions/discussion/re-do-i-qualify-for-eic-if-i-had...
