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Centre for obesity referrals


Referral contacts

Name: bariatric coordinator

Phone: 020 7188 2892


Making a referral

We accept referrals from GPs.

  • Referral criteria for bariatric surgery (tier 4)

    Your patient may be suitable for surgery if they have:

    • failed to maintain weight loss using non-surgical measures, such as tier 3 weight management
    • a body-mass index (BMI) between 30 to 35, with recent onset type 2 diabetes
    • a BMI between 35 and 40, with other significant disease that could improve if they lost weight (for example, type 2 diabetes or high blood pressure)
    • a BMI of more than 40
    • a BMI of more than 50kg. Weight-loss surgery should be considered as first line treatment

    The first step on our obesity pathway is an online weight-loss surgery education group session. Your patient may not be suitable for this if they:

    • need an interpreter
    • have a significant learning difficulty
    • have already had bariatric surgery

    If the patient is not suitable for this education session please note this in your referral.

    Please make all referrals using the NHS e-Referral Service (e-RS).

    1. Under organisation or site name search for 'Guy's'
    2. Choose 'Guy’s and St Thomas’ Hospitals'
    3. Return to 'directory of service' tab
    4. Under 'service results' choose:
      • 'Video Obesity Medicine'
      • 'endocrinology'
      • 'Guy's and St Thomas''
      • 'RJ1'
      • The name of the clinician will be shown as 'McGowan, Barbara (Dr)'