Recommendation for cardiologist in Honolulu area?

[Zoltania]

The mother of a friend of mine lives in the small Hawaiian town of Kailua, about 30 minutes from Honolulu. She apparently has a "leaky valve" problem (I don't know any details) and has had an echo but doesn't have a clear recommendation on what to do next. My friend would like her to get a second opinion, preferably from a cardiologist in Honolulu. Does anyone have any recommendations? Thanks...