CHP/PCOR maintains a network of affiliated university researchers and outside experts from the United States and abroad. Affiliates collaborate with CHP/PCOR investigators on center research projects and provide valuable perspective on current healthcare issues. There are three types of CHP/PCOR affiliates: fellows, associates, and adjunct affiliates.

Adjunct Associates (see below) reside at other universities, health- care systems, government agencies, nonprofit organizations and other entities, while Affiliates have academic appointments at Stanford University, while .