Administratrix of estate of patient brought medical malpractice action against neurosurgeon and his employer. The Mobile Circuit Court, No. CV-98-3909, denied motion for summary judgment brought by neurosurgeon and his employer, and they appealed. The Supreme Court, Stuart, J., held that: (1) it is the defendant health care provider's credentials on the date of the alleged breach that must be considered in determining who may testify against the defendant as a similarly situated health-care provider; (2) neurosurgeon who was not a board-certified neurosurgeon at time he performed surgery on patient, but who became board-certified in neurosurgery three months after patient's surgeries could not be considered a "specialist" at the time he allegedly breached the applicable standard of care; and (3) physician, who was proffered expert of patient's estate, was a "similarly situated health care provider" and, thus, was qualified to testify as an expert. Affirmed.