A neuropsychologist is a licensed clinical psychologist with extensive training in neuroscience, neuroanatomy, and brain-behavior relationships that is in addition to their other training. What makes an assessment “neuropsychological” is not the tests used, but the doctor who performs the evaluation.
Look immediately for the “Ph.D.” or “Psy.D.” after the name when someone is claiming to be a psychologist or neuropsychologist. Then look for a license number issued by the CA Board of Psychology (PSY followed by a 4 or 5 digit number). There is a link to “verify license” on the Board’s website.
A doctorate in psychology and a Board of Psychology license are the minimum requirements for calling oneself a neuropsychologist.