Dr. Paul Nassif -- Head Honcho of Domestic Violence Charity

Dr. Paul Nassif has been a prominent member of an anti-domestic violence charity for years, TMZ has learned -- and he's even been invited to a big event THIS WEEK ... despite allegations he beat his wife Adrienne Maloof.

Organizers of the Face to Face charity in NYC emailed Nassif this week to confirm his attendance at the event. The charity offers victims of domestic abuse free reconstructive surgery ... and Nassif, a well-known plastic surgeon, has been on the executive committee for years.

In fact, we've learned Nassif was honored with Adrienne just last year at the charity's 9th annual benefit for the couple's "ongoing commitment to improving the lives of victims of domestic violence."

It's pretty crazy ... considering Nassif's invitation to this week's event was confirmed AFTER Adrienne accused him of beating her and attacking their children.