While she was still studying at medical school, she met her ex-husband Edison de Godoy Bueno, the founder of Amil, a Brazil's healthcare organization. A medical doctor of Universidade Federal do Rio de Janeiro who also holds a doctorate of the University of Texas at Austin, Dulce helped Edison a lot with the organization that started with a few medical clinics. Since 2007, her ex-husband has purchased about 15 companies until Amil developed into the largest healthcare organization in Latin America. Currently, the company provides dental care, discount pharmacy coverage and health care to more than 5 million patients.
By the end of 2012, United Health Group (UHG), a U.S. health insurance company, purchased 90% of the Amil's shares: 60% directly from Dulce and Edison, and the remaining 30% from public shareholders. Moreover, Duce holds shares in Dasa, one of the leading chains of laboratories in Latin America, and Total Care, a private holding firm that runs directs investments in hospitals in Sao Paulo and Rio de Janeiro. She also spent some time working as an assistant professor in the Pediatrics Department at Universidade Federal do Rio de Janeiro, where she served as well as an academic dean. In addition, Dulce established the Pediatric Rheumatology Service of the Martagao Gesteira Pediatric Institute.
