Paris Jackson & Family Reconnecting ... Per Doctor's Orders (PHOTOS)

Paris Jackson is back in the L.A. area -- possibly with a boyfriend -- and we've learned the point of the visit is to re-establish Jackson family ties.

Paris was hanging out in Calabasas Wednesday night with some friends as guardian T.J. Jackson followed closely behind. It looks like the guy with the dark hair might be a date or a boyfriend.

Sources connected to the Jacksons tell TMZ ... the doctors who have been treating Paris after she tried to take her life have told her she needs to create a family support system ... because she's become estranged from her entire family.

We're told doctors were concerned 16-year-old Paris' only meaningful relationship has been with Debbie Rowe -- her biological mother who does not have custody.

Doctors want her to mend fences with Katherine, her siblings and other immediate family ... they think it's important to her healing.