How did the doctor get into la paz?

He doesn't live in Paris. He doesn't have the money to live in France but longs to do so,

"The doctor had once for a short time been a part of the great world and his whole subsequent life was memory and longing for France... "That," he said, "was civilized living"- by which he meant that on a small income he had been able to keep a mistress and eat in restaurants."

I don't recall how he came to the small town but he seems stuck there because of his lack of money.

What does The doctors compare kino and people to