Here's what it says...doesn't sound like it has to be in person?
Medical management including evidence of active participation within the last 12 months in a weight- management program that is supervised either by a physician or a registered dietician for a minimum of three consecutive months. The weight-management program must include monthly documentation of ALL of the following components:
weight
current dietary program
physical activity (e.g., exercise program)
Programs such as Weight Watchers®, Jenny Craig® and Optifast® are acceptable alternatives if done in conjunction with the supervision of a physician or registered dietician and detailed documentation of participation is available for review. However, physician-supervised programs consisting exclusively of pharmacological management are not sufficient to meet this requirement.