Dr. Muller is a really, REALLY nice guy and seemingly excellent and thorough doctor. Unfortunately, he’s being saddled with an inefficient automated North Shore/LIJ support system. Making appointments are no problem, receptionists are always pleasant and helpful, as are the assistants. Even urgent same-day appointments are easy. I have never been in his waiting room more than 15 minutes to see him. The problem is if anything goes wrong after your doctor’s visit. Like you have additional questions when you get home or your insurance company refuses your prescriptions at the drug store. That’s where the system fails. Apparently he does not get incoming calls or messages forwarded directly to him by NS/LIJ phone staff. Most doctors my family has dealt with will return calls and messages between patients or by the end of the day. With Dr. Muller’s office it’s a hanging in limbo waiting game. For questions, an assistant will call you back the next day or the day after that, leave a message if you’re not home, and never try again. I was told that all patient’s incoming calls and pharmacy problems are put in an automated email system that assistants follow up on. For prescription rejections or drugs that need special requests from the doctor may take days to get straightened out. When my back was out, and I needed a restricted drug that needed some other authorization from the doctor, I waited almost 4 days in excruciating pain. The girl at CVS said she called and left 6 or 8 messages over 3 days. Finally I called and screamed about a malpractice suit. THEN, I got my drugs. Another time I needed an alternate version for a rejected drug. Same thing. Repeated calls from CVS, I waited a full 24 hours for an antibiotic. I don’t blame Dr Muller. He’s just a hired hand at an LIJ owned sub-office. I’m sure the huge conglomerate is just as frustrating to him. 5 stars for Dr Muller, one star for the system in use.