Context: Of 2.4 million American Indians, approximately 60% are eligible to receive Indian Health Service (IHS) benefits, leaving many to seek care elsewhere. It is unknown if their quality of care, health behaviors, and health status vary by source of care, as demonstrated for other populations. Purpose: The purpose of this study was to determine whether preventive services, health behaviors, and number of health conditions vary as a function of having non-IHS public versus private physicians as sources of usual care. Methods: 1,177 Lumbee Indians, who are ineligible to receive IHS services, completed a telephone interview that included information on receipt of preventive measures, tobacco use, physical activity, breast self-examination, and medical conditions. Frequencies, chi-squares, t tests, odds ratios, and confidence intervals were used to compare variables by source of care. Findings: 939 respondents (80%) had a private and 210 (18%) a public health clinic physician as their usual source of care; 28 (2%) reported having neither. Logistic regression analyses, restricted to the 1,149 participants who reported either a private or public source of care, revealed no differences in receipt of preventive services or health status by usual source of care. Smokeless tobacco use was less common among persons using private than public providers. Conclusions: Lumbees whose usual source of care was a public clinic physician did not differ in receipt of preventive services or in health status compared to their counterparts who received care from a private physician. More targeted research into health similarities and differences arising from access to public and private sources of care is warranted.