We don't know her type of practice and whether solo or group. Unless she has a well-equipped practice, such as a dermatologist doing a lot of cosmetic work, she will not be able to receive much more than for furnishing and fixtures. 

She will also be responsible for custody of patient records after she retires, unless she sells practice or is in a group. If she is in a group she probably has a buy-out agreement.

I think your figure of twice income is over optimistic.