I'm not a Boston area expert, but are you familiar with these services? The urgent care option would be a way to be seen without dealing with your own pdoc maybe???
Emergency Services Program | Psychiatry
Urgent Care Centers

ffers an option when an office-based evaluation is desired. Urgent Care Evaluations provides short-term crisis evaluation on both a scheduled and drop-in basis. Always call the 24 hour Hotline prior to visiting Urgent Care.
Community Crisis Stabilization Units: serves persons 18 years of age and older, providing short-term crisis intervention over a three-to-five day stay at facilities in partnership with Bay Cove Human Services and Child & Family Services of New Bedford. The Crisis Stabilization Unit is a successful alternative or diversion to inpatient hospitalization.