@birdman518 I also have had melanoma surgery, but was not given any information on this test, nor the company.

It seems you need to look at your case specifically. Your age, what stage was the melanoma they removed, how deep was it, any post surgery treatment suggested by the surgeons. In regards to the Castle test, is this something your insurance will cover, or are you on the hook for it completely? If you need to pay for it, what is the cost and how accurate is it? Does your doctor have any other patients who did the test and were satisfied with the results?

Your plan to reach out to the surgeon sounds like a sound one, to me. Let me know what they say!
Ginger