That is a big range. It makes interpretation a bit difficult. A normal fasting c-peptide range I saw was 0.8 - 1.8. But your test result falls comfortably in that range too

. A T2 in the early stages would usually have a high or high-normal c-peptide, as the pancreas produces extra insulin to overcome insulin resistance. This long after onset and without insulin treatment, a T1 would probably have a low or low-normal c-peptide. I guess you could be T1.5

. Let us know what your doctor has to say about it.