West Haven Chiropractor. Dr. Mark Pappas, DC provides Auto Injury, Workman's Comp, Allergy Testing, Peanut testing, Back Pain, Disc Problems, Headaches, back pain relief, neck pain relief to the following locations: Greater New Haven, Orange, Milford. Greater New Haven Chiropractor providing Auto Injury, Workman's Comp, Allergy Testing, Peanut testing, Back Pain, Disc Problems, Headaches in West Haven, Greater New Haven, Orange, Milford, Connecticut.