¶1*711Gene V. Graham, Pendleton, IN, for Gene V. Graham.
¶2Anthony W. Overholt, Office of the Atty. Gen., Indianapolis, IN, for Gene Satkoski.
¶3Sidney Wilson, pro se, Westville, IN.
¶4Michael A. Hostettler, Office of the Atty. Gen., Indianapolis, IN, for Charlie Wright, Mike Scott, Thomas Foy, Laurie Ebling, Shelly Schmizzi, Lewis Brooks, Louis Smith, Andre Lawson.
¶5Before CUMMINGS, EASTERBROOK and RIPPLE, Circuit Judges.
¶9Two prison inmates brought actions under 42 U.S.C. § 1983 against various prison officials. Both eases require this court to revisit an issue addressed in Sellers v. United States, 902 F.2d 598 (7th Cir.1990): the adequacy of the efforts of the United States Marshals Service to serve process on behalf of litigants proceeding in forma pauperis. Accordingly, we have consolidated the appeals for decision. For the reasons set forth in the following paragraphs, we affirm in part, vacate the judgments of the district court in part, and remand the cases for further proceedings consistent with this opinion.
¶10I
¶11BACKGROUND
¶12In case no. 94-1867, Gene Graham, an inmate at the Westville Correctional Center *712(“WCC”), brought a § 1983 claim against the prison’s payroll clerk, Gene Satkoski. Mr. Graham alleged that Mr. Satkoski had violated his due process rights in connection with the prison payroll system. The Marshals Service was directed to serve Mr. Satkoski and attempted to do so at the prison. The attempt was unsuccessful because Mr. Satko-ski had left the prison’s employ; the summons was returned unserved. The district court then dismissed the action pursuant to Federal Rule of Civil Procedure 4(j) (currently Rule 4(m) and hereinafter referred to as Rule 4(m)) for failure to serve the defendant within 120 days of the filing of the complaint.1
¶13In case no. 94-1103, Sidney Wilson, also an inmate at the WCC, filed a § 1983 complaint and a supplemental complaint. He alleged that prison officials2 denied him medical treatment for a scalp problem, disposed of his mail, confiscated his radio, and wrongfully disciplined him. The defendants still employed by the prison were served properly. However, as in the case of Mr. Graham, the defendants who were no longer employed by the prison, Sehmizzi and Smith, were not served by the Marshals Service; the district court dismissed3 them pursuant to Rule 4(m). The remaining defendants defaulted, and the district judge referred the case to a magistrate judge for a determination of damages. The magistrate judge recommended that the motion to vacate the default judgment be denied on the ground that the defendants had neither shown good cause for their default nor quick action to correct it. The magistrate judge also recommended that Mr. Wilson be awarded $550 in compensatory damages, be examined by a dermatologist, and be given appropriate treatment. The district court accepted the recommendation.
¶14On appeal, Mr. Graham and Mr. Wilson challenge the dismissal of certain defendants for lack of service. Mr. Wilson also submits that the amount of compensatory damages was inadequate and that punitive damages should have been awarded.
¶15II
¶16DISCUSSION
¶17A. Attempted Service by the Marshal
¶18In both cases, the Marshals Service was directed to serve process on the designated defendants on behalf of the inmate plaintiffs. The Marshals Service is required to serve process on behalf of individuals proceeding in forma pauperis. See 28 U.S.C. § 1915(c); Fed.R.Civ.P. 4(c)(2); see - also 28 U.S.C. § 566(c). In both of these eases, the Marshals Service failed to serve the defendants who no longer worked at the prison. As far as the record indicates, no effort was made to ascertain the defendants’ new locations. The district court did not question the marshals’ efforts and dismissed the defendants pursuant to Rule 4(m).
¶19We do not believe that the district court’s action can be reconciled with this court’s decision in Sellers v. United States, 902 F.2d 598 (7th Cir.1990). In Sellers, a federal pris*713oner brought a Bivens action4 against the former warden and several former guards, and the Marshals Service was instructed to serve them. The Marshals Service failed to locate these defendants, and the action was dismissed for plaintiffs failure to serve the defendants within 120 days of the filing of the complaint. Sellers, 902 F.2d at 600. We held that the prisoner need furnish the Marshals Service only with information necessary to identify the defendants. Id. at 602. We noted that once the former prison employee is properly identified, the Marshals Service should be able to ascertain the individual’s current address and, on the basis of that information, complete service. Id.The prisoner may rely on the Marshals Service to serve process, and the Marshals Service’s failure to complete service is automatically “good cause” to extend time for service under Rule 4(m). Id.
¶20The present cases involve state prisoners, not federal prisoners, but the distinction is irrelevant. Sellers is grounded in the belief that use of marshals to effect service alleviates two concerns that pervade prisoner litigation, state or federal: 1) the security risks inherent in providing the addresses of prison employees to prisoners; and 2) the reality that prisoners often get the “runaround” when they attempt to obtain information through governmental channels and needless attendant delays in litigating a ease result. See Sellers, 902 F.2d at 602. These concerns are equally applicable to state prisoners. Although a state prison may be justifiably reluctant to provide employee addresses to a prisoner or ex-prisoner due to security concerns, it hardly can claim the same reluctance in providing the information to a federal law enforcement agency. Further, although the state claims there are state statutory procedures for providing prisoners such information,5 the record does not reveal whether these procedures for disclosing employee information are any less onerous than the analogous federal procedures this court found lacking in Sellers. See id. at 602.
¶21On remand, the district court must evaluate the Marshals Service’s efforts and the adequacy of the state disclosure procedures in light of Sellers. If the Marshals Service could have obtained the new addresses of the defendants with reasonable efforts, the marshals’ failure to serve process was “good cause” for purposes of Rule 4(m). Of course, if the failure, to serve process was due to appellants’ failure to cooperate with the Marshals Service, there may not be good cause and dismissal may be appropriate. See Del Raine v. Williford, 32 F.3d 1024, 1030 (7th Cir.1994).
¶22B. Damages
¶23Although the entry of default established the defendants’ liability, Mr. Wilson was still required to establish his entitlement to damages based upon his actual injury or loss suffered. See Fed.R.Civ.P. 55(b)(2); United States v. Di Mucci, 879 F.2d 1488, 1497 (7th Cir.1989). Federal common law governs the recovery of damages for complaints filed under 42 U.S.C. § 1983. Carey v. Piphus, 435 U.S. 247, 257-59, 98 S.Ct. at 1048-50, 55 L.Ed.2d 252 (1978); Stachniak v. Hayes, 989 F.2d 914, 928 (7th Cir.1993); Watts v. Laurent, 774 F.2d 168, 179 (7th Cir.1985), cert. denied, 475 U.S. 1085, 106 S.Ct. 1466, 89 L.Ed.2d 722 (1986). Our ease law recognizes that the trier of fact has considerable discretion in calculating damages under § 1983. We shall not reverse a judge’s calculation of damages unless his calculation is clearly erroneous. Chicago v. Matchmaker Real Estate Sales Ctr. Inc., 982 F.2d 1086, 1099 (7th Cir.1992), cert. denied, — U.S. -, 113 S.Ct. 2961, 125 L.Ed.2d 662 (1993). This court views the evidence of damages in the light most favorable to the verdict. Hagge v. Bauer, 827 F.2d 101, 109 (7th Cir.1987).
¶24The magistrate judge concluded that $550 was sufficient to compensate Mr. Wilson for the pain and suffering he experienced as a result of the defendants’ failure to treat his scalp condition and their confiscation and disposal of his newspapers, mail, and porta*714ble radio. At the damages hearing, Mr. Wilson did not present any evidence concerning monetary losses incurred as a result of defendants’ actions, and he did not present evidence supporting his claims of mental anguish, physical pain, and emotional stress. Under these circumstances, we cannot find that the district court’s award of $550 was clearly erroneous.
¶25Nor do we believe that the district court erred in refusing to award punitive damages. Punitive damages are appropriate in § 1983 cases if the judge finds “conduct motivated by evil intent or callous indifference to the federally-protected rights of plaintiffs.” Coulter v. Vitale, 882 F.2d 1286, 1289 (7th Cir.1989); see also Smith v. Wade, 461 U.S. 30, 56, 103 S.Ct. 1625, 1640, 75 L.Ed.2d 632 (1983); Stachniak, 989 F.2d at 928. The record supports the determination of the district court.6
¶26CONCLUSION
¶27For the reasons stated above, the district court’s decisions are affirmed in part and vacated and remanded in part.
¶28AFFIRMED IN PART & VACATED AND .REMANDED in Part.