The New Hampshire Insurance Department will hold a public hearing to address a Rochester hospital's concerns about being excluded from the network of providers for those purchasing individual health insurance plans under the federal health overhaul. Frisbie Memorial Hospital President Al Felgar is fighting Anthem Blue Cross and Blue Shield's decision to exclude his hospital and about 80 of the hospital's physicians from its new provider network. He said Thursday he was prepared to sue if the insurance department denied his request for a hearing, but Deputy Insurance Commissioner Alex Feldvebel said Felgar will get a hearing.