Born in Quezon City to Magdalena Redito of Oas, Albay and Medgardo Quiambao of Bacacay, Albay on May 20, 1975, she is the first of two children. She attended the School of the Holy Spirit during her elementary and high school years and went for her collegiate studies at the University of Santo Tomas where she obtained her degree in physical therapy. 

She is also a licensed Physical Therapist for the state of Indiana in the United States. Before her Binibining Pilipinas stint, Quiambao had a thriving career as a therapist for St. Luke's Hospital in Manila. Also, she worked as an instructor for a local gym.

Binibining Pilipinas 1999
(Binibining Pilipinas-Universe 1999)
Miss Universe 1999
(Best Hair/Style Award & 1st Runner Up)Trivia:

- One of her recent roles was in the movie 'Matakot ka sa karma'.
- Being born on May 22, her zodiacal sign is Gemini (more Famous Gemini People).