Responding to concerns about the health of poor children and mothers, Medic
aid eligibility for pregnant women was expanded during the 1980s and 1990s
and Medicaid fees paid to physicians for prenatal care and delivery were in
creased. We examine physician responses to these policy changes using data
on physician practices. We find that expanded eligibility for Medicaid did
increase access to physician services. Contrary to some Earlier findings, h
owever, increases in access are only apparent for the physicians in "public
" institutions such as public clinics and hospital clinics; we find no evid
ence that increases in eligibility increase access to private, office-based
physicians.