This is not unusual... many doctors can't evaluate tests perfectly.
One glaring thing they don't attend to is elevated MCV in a CBC differential test. Elevated MCV is a precursor to low B12 anemia, when the RBC is still normal. An alert doctor could spare his patients so much neuro grief by attending to this
warning sign. But they don't.

When I had my B12 run this month, my doctor pooh poohed oral B12 supplements. I told her... wanna bet? I tested out at the max the lab could read (1999). I was trying the new methyl B12 from Puritan's Pride... which worked splendidly for me.
My average B12 was in the 800's before. Since I am going to try metformin again...having a current B12 reading is important, since this drug depletes it.

These days it is really important to be an informed patient, and take control of YOUR own body when possible.