Bariatric Surgery: WH

NCL Wide
Under Review — this page was due to be reviewed by Thursday, 16 March 2023. The information shown here may be outdated.

The bariatric service at Whittington Hospital is known as the North London Obesity Surgery Service (or NLOSS).

The following operations are offered and performed laparoscopically:

  • gastric banding
  • Roux-en-Y bypass (gastric bypass)
  • single anastomosis gastric bypass
  • sleeve gastrectomy
  • revision surgeries.

Prior to surgery, supervised dieting, medication, physiotherapy and psychological evaluations take place.

Eligibility Criteria


  • BMI of 40 kg/m2 or more
  • BMI between 35 kg/m2 and 40 kg/m2 and other significant disease (for example, type 2 diabetes or high blood pressure) that could be improved if they lost weight.

How to Refer


Referral methods: e-Referrals, Email

Refer by sending a letter to your Referral Support Service (via eRS in Camden/Haringey/Islington, via email in Barnet/Enfield)


North London Obesity Service

General Services

Adult Safeguarding

Child Safeguarding

Community Services

Navigating Self-Care

Urgent & Emergency Care for Adults

Urgent & Emergency Care for Children

Review date: Thursday, 16 March 2023