Is a Plastic Surgeon the Only Kind of Doctor That Repairs the Stomach Muscles That Have Separated?

A general surgeon can repair your stomach muscles. You just have to define your goals. The incision for the repair will usually be on the anterior abdominal wall and be more visible than if a PS does the repair in conjunction with a tummy tuck.

You should probably seek out a plastic surgeon who does this several times a week. Find a plastic surgeon with ELITE credentials who performs hundreds of tummy tuck procedures each year. Then look at the plastic surgeon's website before and after photo galleries to get a sense of who can deliver the results. Kenneth Hughes, MD Los Angeles, CA

Yes, it is usually during a tummy tuck that muscle diastsis is repaired.  This procedure should be performed by a board certified plastic surgeon in my opinion.