Is this medical malpractice?

I know of someone who was given Lortab like candy by her doctors office and other meds for years.They had several providers who did not confer at all. In the end before she got help, at one point she had 3 scripts in hand for a month supply of lortab the 2nd highest dosage..Alot of times it was honestly forgetting they had them or didnt turn them in but ended up realizing it was to get more.Once she even told them not to give more because she knew she had a problem and was addicted but they continued.Do they have a responsibility to check up on these things.This same doctor also worked with her to get gastric byp surgery done when this person had a extensive history with depression, had several related disorders.At the time this person was a good candidate but due to several life changing events the depression leads and it is hard for this person to care for herself the way she needs to.Was this malpractice.This dr even missed the large kidney stone that started the need for pills.