We took our son to his 1 year appointment last Monday and I asked the doctor the same thing. Ryan was RELENTLESS about a middle of the night feeding. She said at a year he needs to be off bottles and using a sippy cup for his whole milk intake. He doesn't need the feeding at night at all and he has just been conditioned to want to eat then.
He had his last bottle that day and we haven't given in. When he woke up at 3AM the first night, I offered him a sippy cup with some formula (she said to use up what we had). He drank it and fussed for awhile and went to sleep. After a couple of nights, he's stopped waking up. He's also stopped the before bed-bottle/milk and has been fine.
Yes, there was some crying, but we comforted him by holding him, rocking him and offered him his pacifier (he only uses it at bed time).
This weekend, he's slept all the way through and wakes up at 6:00AM for the day.
Different doctors have different ideas/methods so I would chat with him/her.
Good luck.