((a)) Whoever knowingly and willfully executes, or attempts to execute, a scheme or artifice—

((1)) to defraud any health care benefit program; or

((2)) to obtain, by means of false or fraudulent pretenses, representations, or promises, any of the money or property owned by, or under the custody or control of, any health care benefit program,

((b)) With respect to violations of this section, a person need not have actual knowledge of this section or specific intent to commit a violation of this section.