The paint job itself might be done, especially in that area. But it doesn't appear that the rust has much compromised the steel itself in that area.

I suspect you can find specialty bike-paint-refinishing places, or auto-body shops, that can handle this.

Alternately, you might do things yourself. It appears that the rust and flaking are in not-so-visible places, and you could sand down that area (getting rid of rust, and smoothing the merger between bare steel and currently okay paint), hit it with some primer, and then some cover paint whose color is not too different from the current paint job. The area where the stays connect to the bottom bracket is rarely very noticeable.