I'm an senior citizen with chronic conditions who is also an insulin dependent diabetic. Dr Zimmerman has been managing my diabetes for the last several years. Whilst under a previous specialist who has now retired my diabetic control was relatively poor. Dr Zimmerman has aggressively treated my condition and has over t5he period assisted my eduction in insulin useage, reduced my Hba1C's dramatically AND consequently caused me to loose some of my excess weight. He's improved my quality of life and probably it's extent as well.