This is Karl's TrustRating, which is based on both the number of reviews Karl has written, and how many other people have voted those reviews as "helpful." It's a way to quickly to determine the value of any single review or reviewer, because it's based on how helpful Karl has been to the Kudzu community.
I am not a doctor, so when I go to one I at least expect some intelligent service. All they did was take my vitals and give me a referral to a specialist. Is this a Clinic or an insurance fraud, I'm not sure.