- Dr. Greenbaum is what every doctor, surgeon or other medical professional should strive to be. He is clearly knowledgeable and confident in his expertise. He is direct and to the point. Dr. Greenbaum takes the time to listen to his patients, diagnose accurately, followups are very important, and his bedside manner is amazing. He is genuinely concerned about the care of every single patient that walks through his door. Outstanding. 5 stars.