Updated information on COVID-19 and Flu: Restricted visitation is now in effect

Criteria for surgery

To qualify for bariatric surgery, your BMI must be 40 or or more, or 35 or more with two weight-related illnesses, such as:

  • Acid reflux

  • Arthritis

  • Asthma

  • Diabetes

  • Heart Disease

  • High blood pressure

  • High Cholesterol

  • Sleep apnea

BMI Calculator

Learn and monitor your Body Mass Index

Your weight in pounds:
Your height in feet:
And inches:
Your BMI results
Adult BMI Ranges
  • Underweight -- below 18.5
  • Normal -- 18.5 - 24.9
  • Overweight -- 25 - 29.9
  • Obese -- 30 or higher


Print and complete the appropriate forms before your appointment:

Having trouble opening these forms? Click here to download Adobe Reader, free PDF viewer.

Bariatric Timeline


You can receive care at Sparrow and we will bill all insurances, however whether it is considered in-network or out-of-network will vary, which can affect your costs. If you prefer to speak directly with a billing representative, please call 517.364.6740. Please note: no medical information will be released. For more information and a detailed list of accepted insurances and contact information, click here.