Can a home health care company be sued for negligence if their aide just disappears in the middle of the night?

As a New York medical malpractice attorney, I have heard many harrowing stories involving "home care" or lack thereof. Fortunately, it sounds like this time, nothing bad happened due to the home health aide disappearing during the night. Of course, it is scary to think of what might have happened, but the situation you've described above would not be considered medical malpractice. Certainly, now is a good time to review the back-up plan for your grandmother's care. It would also be smart to investigate a little and review the quality of care she's been receiving to date--perhaps there have been similar situations of which you've not been previously alerted. You should also speak with the home care agency to find out what can be done to minimize the chance of this happening again. If you find that there has been a pattern of neglect or incompetence, then speak with a local attorney. Contact information for New York attorneys can be found here. Good luck!