CMS releases E/M frequency data annually.  A physician self-elects their specialty designation when enrolling with Medicare. Unfortunately, there aren’t specialty designations for breast,  bariatrics, or trauma surgery, and those surgeons are usually enrolled using the category for general surgery. There are specialty designations for vascular surgery, plastic surgery, thoracic, and surgical oncology.

The data below is from 2022, released in late 2023.