Purpose: To improve the cultural competency of nurses and physicians in Korea by disclosing their degree of prejudice toward foreigners who were major target of international medical tourists. Method: A descriptive research design was employed. Data were collected from a total of 458 nurses and physicians at general hospitals in Korea. Subjects completed questionnaires on their demographic information and prejudice toward foreigners from a cognitive, emotional, and behavioral perspective. Results: While there was a positive attitude toward Caucasian Americans and Japanese, there was a negative prejudice toward Chinese and African Americans. There was an especially high and negative prejudice from a cognitive and behavioral perspective toward Chinese. There was a significant difference in the level of prejudice according to the education level, workplace, and multi-cultural education of Korean health professionals. Conclusion: It is necessary to investigate the negative prejudice toward foreigners of specific races or countries with cautious consideration. We also recommend the development and application of strategies to improve the multi-cultural competency of Korean nurses and physicians.