Who should I call if I have a question about my bill? For Southern New Hampshire Medical Center billing questions: call (603) 577-7800, weekdays between 8:00 a.m. until 4:30 p.m. For Foundation Medical Partners billing questions: call (603) 577-7800, weekdays between 8:00 a.m. until 4:30 p.m. My insurance company didn’t pay my bill. Why? Please call your insurance company. They can explain your medical bill to you. Depending on your health insurance plan, you may have to pay a deductible, co-pay, or co-insurance amount for some services and not for others. If I receive a bill that I believe is in error, should I “file” it away and wait to receive a second bill? No. You should call us immediately. Don’t wait to ask us a question about your bill.