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Now serving New Jersey & Connecticut

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.

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

Getting Started

Our team is happy to speak with you and help you understand any of the treatments we offer, or answer any questions you have. Please call and speak with us at 800-633-8446, or read more about the surgical and non-surgical options we offer here.

Call: 800-633-8446

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What our patients are saying

“The staff and doctors at the New York Bariatric Group are amazing! They are always patient, helpful, and very understanding and pro-active with questions, problems, etc. After Lap Band surgery I feel fantastic. For the last 6 years I have not had to worry if my clothes would fit. I have been able to maintain my weight loss, and have so much more energy.”

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"Dr. Holover has a great personality, I love him, I consider him a good friend, and I recommend him to everyone. He and his staff are amazing. I thought my recovery would be worse, but it wasn’t. It was great. After a couple of days I was back on my feet and going, with three boys you don’t have time to be down. Now, my kids have to keep up with me!"

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"My results are incredible; I can go to any store and find clothes that fit, I don’t have to go to the big and tall store anymore. My family and friends say I look great, but more so are so happy about my health. Definitely go for it, it is well worth it."

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"My recovery was very easy, I started moving around pretty quick because the nurses had me up and about. Dr. Angstadt has a great bedside manner, a cheerful disposition and is very knowledgeable. He was genuinely concerned for me, he answered all of my questions and put me at ease. I couldn’t be happier, I think it is the best decision I ever made."

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"I was concerned about my health, my blood pressure, cholesterol, my mobility, my flexibility. A few friends told me about NYBG and I went to a seminar. I wanted to live a healthier life and live a long life. My recovery was great, after a week I was 100%. My doctor, Dr. Sekhar, has the best personality in the world."

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"I had a couple of friends who had bariatric surgery done by Dr. Garber a few years back and I decided to make the appointment. My favorite thing about the surgery is not being able to eat that much, eating whatever I want but in smaller portions. My results are amazing"

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*Individual results may vary.

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OUR OFFICES ARE NOW OPEN! View Update

NYBG offices are now officially OPEN!

New and existing patients can call our offices at 1-800-633-8446 for assistance.

We are still offering VIRTUAL CONSULTATIONS and would be happy to speak with you.

We look forward to welcoming you back to our office in the future.

Together we've got this!

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