Is consistent primary care within a patient-centered medical home related to utilization patterns and costs?

The patient-centered medical home (PCMH) is seen as an important vehicle for providing consistent primary care and achieving cost savings through care coordination. We used health plan administrative data to evaluate utilization and cost among enrollees who attended a PCMH compared with those who fragmented their care. Controlling for demographic differences, PCMH attendees made significantly fewer primary care and specialist visits than other groups, and associated professional fees were significantly lower than for enrollees receiving less consistent primary care.