I'm so sorry for you. By now your mom has likely passed, or she soon will. People can go a long time without food, but lack of hydration will take her first. If she's still alive, please call you local hospice. They can tell you that she is in a state where she is not suffering from lack of food or hydration. She is beyond that.
Applying for an NPI is free of cost and relatively easy. To apply through a secure, Web-based process, visit the National Plan and Provider Enumeration System website. Those with valid applications should receive their NPI via email within one to five business days.
One of the provisions of the Affordable Care Act requires all providers of medical or other items or services & suppliers that qualify for a National Provider Identifier (NPI) to include their NPI number on all applications to enroll in the Medicare and Medicaid programs and on all claims for payment submitted under the Medicare and Medicaid programs.