Nev. Rev. Stat. § 690B.300
2. If an insurer issues a policy of professional liability insurance to a practitioner licensed pursuant to chapter 630, 632 or 633 of NRS who delivers one or more babies per year, the insurer may set the premium for the policy at a rate that is different, based in whole or in part upon the number of babies delivered per year by the practitioner, from the rate set for such a policy issued by the insurer to any other practitioner licensed pursuant to chapter 630, 632 or 633 of NRS who delivers one or more babies per year if the insurer:
(Added to NRS by 2003, 922)