MEMORANDUM

Christopher O’Neill, a Nevada state prisoner, appeals pro se from the district court’s summary judgment dismissing 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 O’Neill failed to raise a genuine dispute of material fact as to whether defendants were deliberately indifferent in treating his Hepatitis C and associated pain. See id. at 1057 (a prison official is deliberately indifferent only if he or she “knows of and disregards an excessive risk to inmate health” (internal citations and quotation marks omitted)); see also Colwell v. Bannister, 763 F.3d 1060, 1068 (9th Cir.2014) (“A difference of opinion between a physician and the prisoner— or between medical professionals — concerning what medical care is appropriate does not amount to deliberate indifference.” (internal citations and quotation marks omitted)).

The district court did not abuse its discretion in denying O’Neill’s motion to amend because it sought to add a “separate, distinct and new cause of action.” Planned Parenthood of S. Ariz. v. Neely, 130 F.3d 400 , 402 (9th Cir.1997) (per cu-riam) (internal citations and quotation marks omitted) (standard of review); see also United States ex rel. Wulff v. CMA, Inc., 890 F.2d 1070, 1073 (9th Cir.1989) (“The erroneous characterization of the corrected pleading as an amended complaint rather than as a supplemental pleading is immaterial.” (internal citations and quotation marks omitted)).

AFFIRMED.

This disposition is not appropriate for publication and is not precedent except as provided by 9th Cir. R. 36-3.