Great question — answering as the UphillTech team:
If you're talking about variations such as Street vs St. that is a strong differentiation as Hummingbird (August 2013) looks at synonymous relationships in context. Having both increases overall relevance for "near me" queries. If you're talking about "123 front st, suite 700, Big Town, West Jersey" vs "123 front st, #700, Big Town, WJ, 12345" then I would try to improve consistency of these mentions.
Full answer by Zander Buteux: https://webmasters.stackexchange.com/a/102107 (CC BY-SA 3.0).
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