Duplicate photos from iPhone to iPhoto

It appears duplicate photos are being created when I sync iPhone 6 (most recent software) to iPhoto (on mac, most recent OS and iPhoto).

When I sync from my phone to iphoto, I will get duplicates of every photo. IMG_0001, IMG_0001_2, etc.

iCloud photo library is off.

Photo stream is on.

Sharing is on.

When I look at my phone there is only one photo.

When I look at iPhoto photos there are two of everything.

This only happens on photos that I take with the phone. If someone shares a photo w/ me in a message there is only one photo.

I thought with Sharing and Syncing it would recognize duplicates and not upload them. This appears to be being uploaded from the phone itself.

Any ideas?