Dr. Allison is one of the best Internal Medicine doctors you could want for diabetes. She has helped me and my wife and my A1 c is 5. She takes her time with each patient and will run test if she is concerned about your health. Be aware that she is not a Family Practice Doctor so you will spend more time and you will get more service if you have never been to an internal medicine doctor. The staff is nice. Rafael is great about helping people with paper work and Emma will answer any questions you have about billling.