I'm stuck in stage 4

I did receive confirmation that my doctor did pass away unexpectedly. His obituary with a smiling photograph is in the newspaper. I've chosen not to speculate too much on the details. It won't accomplish anything. But I see myself moving through the five stages of grief, which are denial, anger, bargaining, depression and acceptance. I denied it was true when I didn't know for sure. I was angry that he left me without a good doctor. I tried to tell God what I would do if only it wasn't so. Now I am stuck in depression. Not a raging depression, but more like a lulling sadness. I just feel so sad for his wife and children. His kids were little, and he spoke of his family often. I will be praying for them for a long time.