Nikki Canelis of Cazadero learned two important things during her visit Tuesday morning with a Sutter Health-affiliated breast imaging radiologist in Santa Rosa. First and foremost, she got a clean bill of health with no new cyst growth since her breast surgery last August. And while not as dramatic, Canelis also learned Tuesday that she will now have the option of buying Sutter's own HMO insurance. "If the insurance is as good as the doctors are, then I'd love to switch — have it all in one system," said Canelis, 42, who currently is covered by Health Net through her husband's family business.