Even if you live near one (like me within 40 miles of Ft Hood) they could be too crowded and put you out in town. We use Prime with a civilian PCM and we are very happy with our level of service and the ease of getting appts or referrals. Our PCM's office services an Urgent Care clinic with their doctors in the same building. We can just walk into the urgent care and it is treated like we went upstairs for a scheduled appointment. No call to TRICARE required...very useful.