The annual complaints report for the trust shows that in 2010-11 there were 166 complaints about a range of issues from pharmacies to dentists.
That compares to 160 complaints in 2009-10 and 179 for 2008-09.
In total 88 of the issues raised related to either GPs at their surgeries or the out-of-hours doctors’ service.
Of those arising from surgery appointments a total of 43 were concerning diagnosis or treatment and 17 were about the doctor’s attitude.
Northamptonshire’s Local Medical Committe, which represents the county’s GPs, said it was relatively pleased with the statistics given the tens of thousands appointments it takes each year.