Our nurses treat patients with a wide range of mental health concerns including, but not limited to Alzheimer's disease, anxiety, behavioral conditions, bipolar disorder, borderline personality disorder, daily life coping issues, dementia, depression, emotional difficulties, instability concerns and PTSD. HCA Healthcare’s New Hampshire hospitals also include Catholic Medical Center in Manchester, Portsmouth Regional Hospital , Parkland Medical Center in Derry, and freestanding emergency rooms in Seabrook, Dover, and Plaistow.