Corleone and others:
Many premedical advisors have an authoritative book which has information, such as on wait-lists, for every medical school in the US and Canada. The book is available ONLY to premedical advisors. It is not in libraries nor for sale to the public.
If you worked through or with the assistance and advice of your premedical advisor, you might ask your questions in the advisor's office.
If you worked through your premedical advisor, kept in touch through the process, your advisor might even be willing to call the admissions offices of some of your wait-listed schools to find out your status and likelihood of acceptance. Not all advisors do this, but if you are courteous in asking, not demanding, you might get the information you seek.
At least regionally, and sometimes nationally, advisors and admission folks attend professional meetings together and get to know each other on a personal level.
At large universities with large numbers of applicants, it may be more difficult to have access to THE premed advisor, but at smaller institutions access is usually fairly easy.
Whether you LIKE the advisor or not is beside the point; at least try to ask for help in this and other matters. It is your career on the line, not the advisor's.