NOT FOR PUBLICATION                           FILED
                    UNITED STATES COURT OF APPEALS                        JUL 21 2020
                                                                      MOLLY C. DWYER, CLERK
                                                                       U.S. COURT OF APPEALS
                           FOR THE NINTH CIRCUIT

BENJAMIN K. TOSCANO,                            No. 19-16288

                Plaintiff-Appellant,            D.C. No. 3:16-cv-06800-EMC

 v.
                                                MEMORANDUM*
NANCY ADAM; et al.

                Defendants-Appellees,



                   Appeal from the United States District Court
                      for the Northern District of California
                    Edward M. Chen, District Judge, Presiding

                             Submitted July 14, 2020**

Before:      CANBY, FRIEDLAND, and R. NELSON, Circuit Judges.

      California state prisoner Benjamin K. Toscano 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, 

, 1056 (9th


      *
             This disposition is not appropriate for publication and is not precedent
except as provided by Ninth Circuit Rule 36-3.
      **
             The panel unanimously concludes this case is suitable for decision
without oral argument. See Fed. R. App. P. 34(a)(2).
Cir. 2004), and we affirm.

      The district court properly granted summary judgment because Toscano

failed to raise a genuine dispute of material fact as to whether Lenoir was

deliberately indifferent to Toscano’s chronic back problems and pain. See

(deliberate indifference is a “high legal standard” that requires a defendant

is aware of and disregards an excessive risk to an inmate’s health; medical

malpractice, negligence, or a difference of opinion concerning the course of

treatment does not amount to deliberate indifference).

      The district court did not err in declining to address Toscano’s retaliation

claim because it was raised for the first time in his opposition to summary

judgment. See Coleman v. Quaker Oats Co., 

, 1292 (9th Cir. 2000)

(holding that allowing the plaintiffs to proceed with a new theory of liability at

summary judgment after the close of discovery would prejudice the defendants).

      The district court properly dismissed Toscano’s claims against defendants

Strawn, McCabe, McClean, McConnell, and Lewis in the operative second

amended complaint because Toscano failed to allege facts sufficient to state a

plausible claim. See Wilhelm v. Rotman, 

, 1118 (9th Cir. 2012)

(reviewing de novo a district court’s dismissal for failure to state a claim under 28

U.S.C. § 1915A); Hebbe v. Pliler, 

, 341-42 (9th Cir. 2010) (although

pro se pleadings are construed liberally, plaintiff must present factual allegations



                                          2                                     19-16288
sufficient to state a plausible claim for relief); 

(deliberate indifference standard).

      Toscano’s request for mediation (Docket Entry No. 23) is denied.

      AFFIRMED.




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