Fire your doctor, immediately! With those results from the biopsy, he should have sent you for a second opinion, redone the biopsy, or even dilated you to have a look inside the endocervical canal. I see one of the following scenarios.
1. The results got mixed up with somebody else, and you will have surgery a different woman should have gotten.
2. Your body's immune system is strong and cleared up the dysplasia.
3. There is something further up, and and standard LEEP could completely miss it.
4. The abnormal PAP smear was caused by cervicitis, and the doctor, per regulations, should be finding the cause of it and treating you appropriately. It could be gardenerella, trichamonia, candida, etc.
It sounds like he's just trying to make money.
When you see your new doctor,
1. Look at all of your lab reports.
2. Get a thorough explanation of what you actually have.
3. If you do have dysplasia and require surgery, get a full discussion of the risks, benefits, and possible future complications of all your treatment options - cryosurgery, laser, LEEP, and cold knife cone biopsy - before a recommendation. This is a requirement!
But cancel the LEEP and get another doctor, today.