Beverly Hills Bariatric Surgeon
9033 Wilshire Blvd., #200
Beverly Hills, California 90211 US
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490 profile views
12 years experience
27 expert answers
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Board Certifications

Board-certified by the American Board of Surgery - General


American Society for Metabolic and Bariatric Surgery (ASMBS)

Hospital Privileges

Dr. Nishi has hospital affiliations at Cedars-Sinai Medical Center; K and B Surgical Center.


  • Undergraduate & Medical School

    The George Washington University
    Doctor of Medicine (MD)
    1995 – 1999
    University of California, Irvine
    Bachelor of Science (BS), Biology, General
    1990 – 1995
  • Post-Medical School Training

    Internship: Department of Surgery- North Shore University Hospital - Manhasset, New York
    Fellowship: Surgical Critical Care - Cedars-Sinai Medical Center

Treatments offered at Weight Loss Surgery of Southern California

Most popular answers from Gregg (Kai) Nishi, MD

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Bypass surgery after sleeve?

First, it's only been 7 months so it is too early to say that your sleeve has not been successful. After a year to a year and a half, if you haven't... READ MORE

I had subpartial gastrectomy in Aug 2015 due to a bleeding ulcer. Ever since, I've been losing weight.

It sounds like you had a large part of your stomach removed, or the portion that was removed ended up making part of your stomach very narrow. You... READ MORE

Can you get Gastric bypass if you are also taking pain medicine for chronic pain?

You can have a gastric bypass even if you are taking pain medications for chronic pain. It isn't ideal, and we would prefer to get you off of the... READ MORE

Will my skin tighten by itself after Gastric Bypass? 6 Months Post-Op.

Hi there. First off, congratulations on losing so much weight. That is fantastic! With regard to your skin, that's difficult to answer. Some people... READ MORE

Age 24 and a mother of 4 kid. In august 2016 I have a bypass surgery my weight on that day was 125kg or 175lb? (Photos)

Your weight is fine, however, just make sure that your weight is stable. We like to wait until about one year after weight loss surgery or until... READ MORE

How long can I take antibiotics before I have a gastro bypass?

Hello. In general, I like a patient to have completed a full course of antibiotics, and then wait at least a week to make sure that there is no... READ MORE

Can you burst the stitches from your gastric bypass?

Well that depends. If you didn't follow your surgeons instructions and tried to eat a bunch of food the day after having a gastric bypass, you could... READ MORE

Would I qualify for gastric bypass?

From an insurance standpoint, you need to have a BMI of 35 and above. You can try to appeal with your insurance company, but that's a difficult... READ MORE

Filler for top and bottom lips safe before bypass surgery?

Hi there. Yes you can have that done before bypass surgery. However, I wouldn't recommend it. After bypass surgery you will lose a lot of weight and... READ MORE

I have thrombocythemia. Can I have bariatric surgery?

As long as your thrombocytopenia is well managed and your platelet count is normal, there shouldn't be any reason why you can't have a sleeve... READ MORE

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*Your results may vary. Any specific claims or permanence length of results vary for each patient and are not guaranteed.