Here is some useful "starting points" help you:
Bariatric Doctors http://www.obesityhelp.com/forums/NJ/a,doclisting/type,46/
Nutritionists: http://www.obesityhelp.com/forums/NJ/a,list/type,1/
Psychiatrists http://www.obesityhelp.com/find/psychiatrist/NJ/
Psychologists http://www.obesityhelp.com/find/psychologist/NJ/
As for Support Groups, if you send me a personal message I can send you a list I created. It may have some OLD information, but it's a starting point.
Off the top of my head: New Brunswick is Saint Peters (every 2nd Thursday of the Month), and contact OH member Krissy for more information concerning Mehta Bariatric Center support group.
Check this page for more suggestions. Here is one I just found:
Ocean County Weight Loss Support Group (OCWLS) Toms River: Meets First Friday of Each Month 7-9 p.m. Community Medical Center – Auditorium A Hospital Drive & Route 37 West, Toms River, NJ