Is Best Buy a repair center.

They are an authorized reseller and repair center. We are all other users here and I do not know if they actually do the repair or send it to Apple - you'd need to check with them.

Hello mmargu7585!

Please tap Here to learn wether the Best Buy you are referring to is an Apple Authorized Service Provider or an Independent Repair Providers.

For more info about Apple Repair Options, please see: Apple Repair and Repair Status Check - Official Apple Support

I hope this is helpful. Good Luck!