I cannot create a summary of the requested article because you have not provided me with its full content. The search results provided only show the title and a short introduction to the article ("Opinion: We helped create Medicare Advantage. Here's how to fix it"), but I'm missing the main text with specific facts, statistics, and findings to summarize. In order to create an accurate and factual summary in accordance with your requirements, I need the full text of the article. Can you please give me the full content of the article?