Education

Dr. Nishimura was born and raised in San Jose, California. He graduated from Hahnemann University College of Medicine in Philadelphia, Pennsylvania in 1994 and completed his surgical residency at Nassau County Medical Center.

As a board-certified laparoscopic surgeon with over 26 years of diverse experience, Dr. Nishimura has performed over 2000 bariatric procedures including adjustable gastric banding, Roux-en-Y gastric bypass, sleeve gastrectomy, revision surgery, and balloons. He also has an extensive background in minimally invasive general surgery procedures performing anti-reflux (Nissen/Toupet fundoplication), hiatal and abdominal wall hernia repair, gallbladder removal, and other advanced laparoscopic procedures.

Dr. Nishimura has established himself as a leading laparoscopic and minimally invasive bariatric and general surgeon in Nassau County, Long Island. He was amongst the first surgeons in Nassau County to specialize in LINX, a magnetic implant to prevent gastroesophageal reflux. He has been recognized by Castle Connolly annually since 2015. As an anchor in the community, Dr. Nishimura has a longstanding affiliation with Mount Sinai South Nassau Hospital. He joined the New York Bariatric Group in 2020 and continues to serve Nassau County, where he utilizes his extensive surgical experience to provide expert care to patients in the region.

Meet The Doctor Gregory Nishimura MD, FACS

Board Certification:

American Board of Surgery
Fellow of the American College of Surgeons

Society Memberships:

American College of Surgeons
America Society for Metabolic and Bariatric Surgery
American Society of Bariatric Physicians

Insurances Accepted:

Aetna
Cigna
Blue Cross Blue Shield
UnitedHealthcare
UnitedHealthcare Community Plan

I went in for surgery. An hour later, I came out a new man.

Everybody treated me like a king. The day of surgery, I was excited. The hospital couldn’t be any nicer. I went in for surgery. An hour later, I came out a new man. My recovery was awesome. I was out of bed that day. My wife and kids were my motivation on getting this surgery. They are my whole life. I’m happy I’m going to be around for them.

I hit my goal weight ... and I feel fabulous

I had the gastric bypass. I am Type 2 Diabetic and I wanted to gain control of my sugar. I hit my goal weight in about 5 and half months and I feel fabulous. The procedure has completely changed my life for the better because it has empowered me as a middle aged woman that I can really do everything and anything that I want to do. I don't put an age on anything. I don't say I'm too old for something.

I was tired of the way I looked. I was tired of the way I felt.

I knew if I didn't change something soon, I was going to be in a lot of trouble. The consultation process was a lot easier than I expected. I was met with open arms. I was treated like I was the only patient here. Not only did they answer all of my questions, they had questions for me to make sure I was the right candidate for the surgery. After surgery and that weight started dropping off, my life started changing for the better.

I feel like a completely different person.

I had the gastric sleeve procedure. The driving factor behind me getting this procedure was my health. I didn't feel good physically or mentally. I had joint pains, even standing was difficult sometimes. Emotionally, this surgery completely turned my life around. I have so much more confidence. So much more happiness. I feel like a completely different person. I feel stronger. I feel able to accomplish more.

It saved my life.

The driving factor behind me getting my procedure was that I couldn't get up off the floor with my granddaughter. That was my why. That was my big reason for having this surgery done. After surgery, it was a little bit of a struggle with what to eat. What you put in your mouth that you don't even think about. You don't think about what you're eating or how you're eating and portion size. It's what I do now every single day. The procedure has changed my life in so many ways. It saved my life.

I am totally comfortable in my own skin.

I think I always grew up identifying myself as less than other people because I was fat. I decided to tackle that and just live my life. I had a sleeve gastrectomy. It changed how I view myself. How I communicate with people. I'm able to be much more of myself and live the life I always thought I should have been living. I am totally comfortable in my own skin. You have the tools you need to succeed here.

I have a brand new life. I can do things I couldn't do before.

I had a vertical sleeve gastrectomy because I had just become diabetic, and I had hypertension for many years. I lost a total of 157 pounds in 11 months. I have a brand new life. I can do things I couldn't do before. Everyone at New York Bariatric Group has been wonderful. They are kind. They are understanding. They make you feel comfortable. They will guide you every step of the way on your journey so that you can be successful.

Gregory Nishimura MD, FACS

Education

Meet The Doctor Gregory Nishimura MD, FACS

Thomas

Lost 145lbs

I went in for surgery. An hour later, I came out a new man.

Nicole

Lost 76lbs

I hit my goal weight ... and I feel fabulous

Robert

Lost 76lbs

I was tired of the way I looked. I was tired of the way I felt.

Samantha

Lost 92lbs

I feel like a completely different person.

Eileen

Lost 99lbs

It saved my life.

Brittany

Lost 126lbs

I am totally comfortable in my own skin.

Desiree

Lost 157lbs

I have a brand new life. I can do things I couldn't do before.

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