I would make the text frame first (before importing the data), and place dummy data so you get an idea of layout.
John Doe 555-1234
Jane Doe 555-4321
Then apply the font, style, size, etc...to get it the way you like. Then import data to the Data Merge window. Highlight the name ("John Doe") in the document and then double-click the corresponding data name in the Data Merge window. Then repeat for each of the number of names you have. After that do the same for the other data (address, phone number, etc.)
Personally, I don't think this is the ideal solution or situation in which to use InDesign. From what I gather in your post, Microsoft Excel would be better.
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