My personal opinion is that someone who has never worked in the medical field previously will do best with an onsite position. Even if it's just for a few months. Even if it's not coding, but hopefully coding adjacent. Billing. Front desk. Registration. Pre-certification. All of these things will bring you closer to your goal. It also greatly helps to have a more well-rounded experience to better fully understand your role in revenue.
There are companies (not many, but they do exist) that will hire CPC-A for fully remote. However, I personally cannot imagine that I would have learned what I learned in the time I learned it if I had been fully remote.
Even from a being the manager/trainer perspective. For an onsite employee, I sit beside them 8 hours a day for several months. We might both be doing our independent work after the first 2 weeks, but then I'm right there all day every day for any silly little question. For a remote employee, the first week or two, I might be training them personally about 6 hours a day, then it's more like an hour a day for several months. It's just a different experience to turn to the person next to you and ask a quick question than to IM, await a response (maybe I'm in a meeting or on break), and then be able to ask your question. Maybe we have to screen share vs - "hey, do I click on the top left or top right?"
It doesn't mean you can't become an excellent coder by working fully remote. It simply means it's harder to find the position, and harder to gain insights from your more skilled co-workers.
Good luck!