The manner in which U.S. medical care is organized and paid for is rap
idly changing. These political and financial changes have created an e
nvironment that favors collaboration and cooperation among the primary
care specialties. Although their relationship was once that of referr
ing physician and consultant, the family physician and general interni
st are becoming peers, and they increasingly have similar needs and in
terests. Improving collaboration between the practitioners in these tw
o fields requires a respect for important differences in their respect
ive cultures. All family physicians work closely with internists durin
g residency, but many general internists have had little or no experie
nce working with family physicians. This essay reviews the practice st
yle and philosophy of the family physician and suggests ways to improv
e communication and collaboration between the two disciplines.