Are there Pokemon Centers in Pokemon Go?

Solution 1:

Pokemon Centers do not exist in Pokemon Go. The only way to heal and revive your Pokemon is to use potions and revives.¹ However, during John Hanke's interview at the 2016 San Diego Comic-Con, he hinted towards similar functionality could come in the future. Given that some features that weren't in the game at initial launch (such as trading and battling) are now in the game, Pokemon Center-like features might happen, but it is merely speculation at this point.

¹ There are some less effective ways to revive. If your Pokemon is knocked out, but have stardust and candy to spare, powering up will technically revive them if their base HP increases. This method won't work if the base HP stat doesn't increase or the Pokemon is already level 40