Is It Possible to Get a Fat Transfer from Another Patient?

Unfortunately, you can only transfer your own fat. The only exception would be from an identical twin to yourself. But, even in this case, you would navigating on unchartered waters.
Based on your pictures, I would suggest additional liposuction to try and even out the areas. The other option would be Smartlipo MPX on the skin tightening mode to help even out the areas. Good luck with your procedures.

Unfortunately fat cannot be taken from someone else and used
for augmentation. The fat can only come from you! If you are just trying
to correct liposuction deformities then it is usually possible to find some fat
from various areas.


You would need to be seen in person by a board certified plastic surgeon that performs
a lot of fat transfer procedures. Your
surgeon would have to evaluate you in person to determine first what is
correctable and what is not, and how much fat would be needed to make the
corrections.

Fat cells are living tissue.  Your immune system will attack anything that is not your own unless it has exactly the same markers on the cell membrane.  This is the reason why all organ transplants have to be on life long immunosuppression.  At this point only an identical twin could donate fat cells to you.