Dopaminergic deficiency can cause altered deactivation of the default mode network (DMN) connectivity, which subsequently impacts executive task performance resulting in freezing of gait (FOG). While the majority of Parkinson’s disease (PD) patients with FOG (PD-FOG) are responsive to levodopa, about 36% of PD patients are levodopa-resistant. Our results show increased DMN connectivity in levodopa-resistant PD-FOG group. Furthermore, we found that altered network connectivity in the levodopa-resistant group was correlated differently with neuropsychological measures. To the best of our knowledge this is the first study to investigate the functional connectivity differences in levodopa-resistant subtypes in PD-FOG.