Dennis Brenner MD Pediatric Endocrinologist

Dr. didn't want to do a blood test for HGH; if we didn't insist I wouldn't have found out I had a thyroid disorder...surprised this guy is still in practice. This was over 15 years ago at his office in Livingston. Absolute joke of an endocrinologist.

I had been trying to make an appointment with an endocrinologist for months in Bergen County. No matter where I called, and I called every single place available in this county, would say there's nothing available in the next six months. I was also told I could not make an appointment unless they had my child's growth records first. I had taken my older 2 children to a solo practitioner who was out of insurance network. My older son was under his care for a few years and I paid every visit up front. When I called to see what the initial fee is for my daughter, he called me himself saying " find someone within your net work". That was the response after paying him a few thousand dollars. Long story short, I'm pleased with Dr. Brenner's care, follow up and office. It was worth drivin

I have been dealing with Dr Brenner since my son was diagnosed at 5 months old. He is by far the best endocrinologist. His care and attention to his patients is outstanding. The office staff is very nice and helpful. I could not see taking my son to another doctor.

Dr. Brenner is a phenomenal doctor. He cares about the patient and speaks in a way the patient is very informed about their health. He is extremely knowledgeable and his staff is phenomenal as well. I can't say enough good things about Dr. Brenner and his staff🩺👨‍⚕️🏥

This is the worst doctor ever. I would not recommend him to anyone, not even my worst enemy. Screwed me during Covid to get refills, when I have gotten them all the time over the phone. Called my son fat and always made the visits for my son uncomfortable. I Got to my appointment early and he made me wait past my appointment time and made a nasty comment about it when approached. Best thing I ever did was leave, the best you can do is stay away!! You are so very welcome :)