MEMORANDUM **

Nevada state prisoner Country Joe Stevens appeals pro se from the district court’s summary judgment in his 42 U.S.C. § 1983 action alleging deliberate indifference to his serious medical needs. We have jurisdiction under 28 U.S.C. § 1291. We review de novo, Toguchi v. Chung, 391 F.3d 1051, 1056 (9th Cir. 2004), and we affirm.

The district court properly granted summary judgment because Stevens failed to raise a genuine dispute of material fact as to whether defendant Dr. Mar provided treatment that was medically unacceptable and was in conscious disregard to an excessive risk to Stevens’s health. See id. at 1058 (prison officials are deliberately indifferent only if they know of and disregard an excessive risk of serious harm to an inmate’s health, and a prisoner’s disagreement with medical opinion is not sufficient to constitute deliberate indifference); Hallett v. Morgan, 296 F.3d 732, 746 (9th Cir. 2002) (when a prisoner alleges that delay of medical treatment evinces deliber *427 ate indifference, he or she must show that the delay led to further injury).

We do not consider issues raised by Stevens in his opening brief that are not supported by argument. See Acosta-Huerta v. Estelle, 7 F.3d 139, 144 (9th Cir. 1992).

AFFIRMED.