Using a representative cross-section of health care providers in Indonesia, we describe variations in prenatal, child, and adult care quality. Quality is measured as knowledge about clinical guidelines. Public health centers offer above-average-quality prenatal care, and private physicians provide high-quality curative care. Private nurses offer below-average care, as do most providers in the more remote regions of Outer Java-Bali. The poor and wealthy have access to the same levels of quality; however, the poorest women report receiving fewer prenatal procedures. Recommendations include improving the professional development of nurses in private settings, testing quality improvements in Outer Java-Bali, and investigating wealth disparities in quality received.