In 1990, Dr. Furnas was appointed to the plastic surgery faculty at Harvard Medical School. While in Boston, she also established a private practice at the Beth Israel Hospital. Shortly thereafter, she relocated to California and co-founded Plastic Surgery Associates with her husband, Dr. Francisco Canales. Since that time, she has earned a reputation as a skilled and caring plastic surgeon in the local community.

In addition to her practice, Dr. Furnas has also served as the President of the Sonoma County Medical Association, as a delegate to the California Medical Association, and as a member of the editorial board for Sonoma County's Physician Magazine. She is board certified by the American Board of Plastic Surgery and is a member of the American Society of Plastic Surgeons, the California Society of Plastic Surgeons, and the prestigious American Society for Aesthetic Plastic Surgery.

Dr. Furnas takes her technical skills abroad to serve the needs of children with birth defects in Peru, Honduras, Western Samoa, the Philippines, and El Salvador. Her volunteer efforts were inspired after spending a year in Kenya with her father, a world-renowned plastic surgeon who also volunteered with the East African Flying Doctors.

A true artist at heart, Dr. Furnas has a passion for theatre, ballet, and music. She is also an artist herself and much of her work can be found on display at the practice. When not practicing her surgical technique, Dr. Furnas enjoys spending time with her husband and their two children, Diego and Siena.