Breast Reduction from DDD to C cup?

In your case, a lift or reduction can significantly move the breast upward to give them more upper pole fullness with your own tissue. Sometimes, if there's not much firmness or density to the breast and it is mostly just skin, an implant is a good option. It really depends on your examination.
I strongly feel that it's very important to have an honest conversation with your surgeon about your particular situation, lifestyle, work environment and specifically which procedures you're having done so that you both have the most honest answer about your recovery and are realistic with expectations and results.
I would recommend that you see a board-certified plastic surgeon in your area that is a member of both ASPS & ASAPS and performs a lot of short scar breast reductions/lifts as well as breast implant surgery. Good luck with your future surgery!
I hope this helps answer your question. If it does, please take a moment to up vote this answer on the “respond” button on the top right.  

Keep in mind that breast reduction surgery is also a cosmetic surgery, so if you feel your breasts are too large and you wear a DDD bra, it is likely you are a good candidate anatomically for a breast reduction and could therefore have the procedure. If you are asking if insurance would cover it, then it is much less clear. I can tell you that the pendulum has swung back to most insurance companies being much less permissive or willing to cover the procedure, with strict guidelines about body weight (you seem to be good there) and estimated breast tissue weight to be removed (usually more than a pound per breast, a lot of tissue). Many surgeons like myself don't even take insurance anymore.