I can't say I've ever seen primary care do that. I don't think I've ever heard of a primary care doctor "managing" obesity with scheduled follow-ups. It's something that's addressed incidentally during care for other conditions. I'm sure dedicated weight loss clinics schedule follow-ups like that. Does that mean only a dedicated weight loss program can ever render care for obesity?
Table 4. The 5 A’s for Evaluation and Treatment of Obesity
Assess
Severity of obesity with calculated BMI, waist circumference, and comorbidities
Food intake and physical activity in context of health risks and appropriate dietary approach
Medications that affect weight or satiety
Readiness to change behavior and stage of change
Advise
Diagnosis of overweight, obese, or severe obesity
Caloric deficit needed for weight loss
Various types of diets that lead to weight loss and ease of adherence
Appropriateness, cost, and effectiveness of meal replacements, dietary supplements, over-the-counter weight aids, medications, surgery Importance of self-monitoring
Agree
If patient is not ready, discuss at another visit If patient is motivated and ready to change, develop treatment plan
If patient chooses diet, physical activity, and/or medication, set weight-loss goal at 10% from baseline
If patient is a potential candidate for surgery, review options
Assist
Provide a diet plan, physical activity guide, and behaviormodification guide
Provide Web resources based on patient interest and need
Identify method for self-monitoring (e.g., diary)
Review food and activity diary on follow-up (reassess if initial goal is not met)
Arrange
Follow-up appointments to meet patient needs
Referral to registered dietitian and/or behavioral specialist for individual counseling/monitoring or weight-management class
Referral to surgical program
Maintenance counseling to prevent relapse or weight regain
This is literally from the AAFP. I think most PCPs who are actually addressing obesity and weight loss with their patients would be a little perturbed that you're describing some surgeon randomly talking about someone needing to lose weight at an appointment that has nothing to do with their weight loss as the same level of management.
It's like the surgery clinics that do PHQ-9 screens on people who are depressed, say something to the patient about it and then count "depression" as a problem they addressed.