United States Court of Appeals
                           FOR THE EIGHTH CIRCUIT
                                    ___________

                                    No. 05-3403
                                    ___________

Arthur J. Misischia, Dr., D.M.D.,        *
                                         *
       Plaintiff - Appellant,            *
                                         * Appeal from the United States
       v.                                * District Court for the
                                         * Eastern District of Missouri.
St. John's Mercy Health Systems, et al., *
                                         *
       Defendants - Appellees.           *
                                  ___________

                              Submitted: April 17, 2006
                                 Filed: August 8, 2006
                                  ___________

Before LOKEN, Chief Judge, LAY and BYE, Circuit Judges.
                              ___________

LOKEN, Chief Judge.

       At the conclusion of largely unsuccessful litigation in other courts, Dr. Arthur
Misischia commenced this action against his former employers, St. John’s Mercy
Health Systems (St. John’s) and Dr. John Delfino, and three St. John’s supervisory
employees. Misischia asserted claims under the Racketeer Influenced and Corrupt
Organizations Act (RICO), 18 U.S.C. §§ 1962(b)-(d), and a pendent state law
conspiracy claim. The district court1 dismissed the claims on res judicata and statute
of limitation grounds. Misischia appeals. Reviewing the district court’s dismissal of

      1
        The HONORABLE CAROL E. JACKSON, Chief Judge of the United States
District Court for the Eastern District of Missouri.
the complaint de novo, we affirm. See Ballinger v. Culotta, 

, 548 (8th
Cir. 2003) (standard of review).

                                   I. Background

       In 1993, Delfino was the director and Misischia was the associate director of
the oral and maxillofacial surgery residency program at St. John’s hospital in St.
Louis. Misischia also performed surgeries at St. John’s hospital as an independent
contractor retained by Delfino’s professional corporation. Following reports of
inappropriate patient contacts, St. John’s terminated Misischia as associate director
and suspended his staff privileges in October 1993. Delfino also terminated his
separate contract with Misischia. As required, St. John’s reported Misischia’s
suspension to the Department of Health and Human Services National Practitioner
Data Bank [NPDB] in February 1994. At St. John’s request, Misischia underwent a
psychiatric evaluation in March 1994 that revealed no disorder. St. John’s then ended
the suspension and revised its adverse action report to the NPDB to read: “Based on
the receipt of a positive [psychiatric] evaluation, the summary suspension of Dr.
Arthur Misischia has been revoked effective April 25, 1994.” However, St. John’s
also terminated Misischia’s employment contract and staff privileges.

        In October 1994, Misischia filed a lawsuit in Missouri state court against St.
John’s and Delfino, asserting various state law tort claims based on the allegation that
Misischia’s suspension, termination, and the adverse NPDB report were retaliation for
his efforts to “blow the whistle” on fraudulent activity by Delfino and St. John’s. The
trial court held that St. John’s was immune from suit under the Health Care Quality
Improvement Act, 42 U.S.C. §§ 11101 et seq., and dismissed some claims against
Delfino. A jury then found in favor of Misischia and against Delfino and his
professional corporation on a fraud claim. The decision was affirmed on appeal and
final judgment entered in December 2000. See Misischia v. St. John’s Mercy Med.
Ctr., 

(Mo. Ct. App. 2000).

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       In March 2001, counsel for Misischia wrote St. John’s offering to release all
claims if St. John’s would submit a revised NPDB report deleting the reference to a
psychiatric evaluation. St. John’s responded, agreeing to submit the revised report if
Misischia also agreed not to serve as a retained expert in lawsuits against St. John’s
and to pay an amount in satisfaction of St. John’s pending motion for costs in the state
court action. Protracted, unsuccessful negotiations ensued. In this action, Misischia
alleges that defendants sought to discredit him by submitting an inaccurate NPDB
report in 1994 and then refused to correct the inaccuracies in 2001 unless he acceded
to their “extortionate” demands.

       In March 2002, with negotiations at a standstill, Misischia filed a “subject
statement” with the Department of Health and Human Services objecting to the
content and accuracy of St. John’s revised NPDB report. The agency concluded that
the phrase “positive evaluation” in St. John’s revised report could be misinterpreted
as implying that Misischia suffers from a psychiatric disorder. Accordingly, St.
John’s amended the report to read: “Based on the receipt of an evaluation that found
that Dr. Arthur Misischia was not suffering from any type of psychiatric disorder, the
summary suspension of Dr. Arthur Misischia has been revoked effective April 25,
1994.” However, the agency rejected Misischia’s demand to delete all reference to
a psychiatric evaluation. Misischia sued the agency alleging a violation of the Privacy
Act, 5 U.S.C. § 552a. The District of Columbia District Court dismissed the suit as
time-barred, concluding that the Privacy Act’s two-year statute of limitations began
to run when St. John’s revised the NPDB report in May 1994. Doe v. Thompson, 

(D. D.C. 2004).

        Ten days later, Misischia filed this lawsuit. His lengthy amended complaint
first describes every aspect of the parties’ dispute from 1993 to 2003 and then alleges
“various adverse professional incidents” involving other physicians with privileges
at St. John’s hospital. The amended complaint alleges that defendants collectively
constituted an “enterprise,” that their wrongful actions constituted a “pattern of

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racketeering activity,” and that the mailings and interstate wire communication cited
in the complaint were “predicate acts” under RICO. In addition to three RICO counts,
Misischia asserts a state law civil conspiracy claim. The remedies sought include an
order declaring that defendants “improperly and without justification” compelled
Misischia to undergo a psychiatric examination, submitted an adverse report to the
NPDB, terminated his employment and staff privileges, and damaged his reputation
in order to taint his testimony as an adverse expert witness in lawsuits against the
hospital.

                                   II. Res Judicata

      The district court held that the doctrine of res judicata or claim preclusion bars
Misischia’s RICO and civil conspiracy claims because he could have raised those
claims in his October 1994 state court suit. Though RICO is a federal statute, the
preclusive effect of this prior state court judgment is governed by the law of Missouri,
the State in which the judgment was rendered. See Marrese v. Am. Acad. of
Orthopaedic Surgeons, 

, 380 (1985).

       Under Missouri law, a prior judgment bars a subsequent claim arising out of the
same group of operative facts “even though additional or different evidence or legal
theories might be advanced to support” the subsequent claim. Chesterfield Village v.
City of Chesterfield, 

, 320 (Mo. banc 2002) (quotation omitted). The
doctrine of claim preclusion bars not only the claims asserted in the first action but
also claims “which the parties, exercising reasonable diligence, might have brought
forward at the time.” 

(quotation omitted); see McNeill v. Franke, 

, 1012 (8th Cir. 1996). Thus, the critical question here is whether Misischia
could have raised his RICO and civil conspiracy claims in the prior state court suit.
The district court answered this question in the affirmative. The court listed ten letters
and wires sent by defendants between August 1993 and July 1994 that are alleged by
Misischia to be RICO predicate acts and then explained:

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             To state a RICO claim, plaintiff must show (1) conduct (2) of an
      enterprise (3) through a pattern (4) of racketeering activity. . . . Mail
      fraud and wire fraud are among the predicate acts that can form the basis
      of a RICO claim. Plaintiff’s amended complaint identifies several
      instances of alleged mail or wire fraud that occurred before he filed [the
      state court action]. His allegation of additional acts after the disposition
      of [that action] does not alter the fact that the basis for his racketeering
      claim existed during the pendency of that prior case.

       On appeal, Misischia first argues that res judicata bars only claims identical to
those raised in the prior lawsuit. He relies on cases properly holding that res judicata
does not bar claims that did not exist when the prior judgment was entered. See
generally Baker Group, L.C., v. Burlington N. & S.F. Ry., 

, 885-87 (8th
Cir. 2000). But that is a different issue. The argument that only identical claims are
precluded is directly contrary to Chesterfield and other Missouri cases holding that res
judicata bars a claim that could have been raised in the first lawsuit.

       Misischia next argues that he could not have raised his RICO claims in the state
court suit because (a) the ten predicate acts that occurred in the year prior to October
1994 were insufficient to prove the requisite pattern of racketeering activity needed
to sustain a RICO claim, and (b) defendants committed additional predicate acts
causing new injuries after the 2000 judgment in the state court case, namely, the
“extortionate” demands in 2001 and 2002 that compelled Misischia to incur legal fees
to challenge the false NPDB report. We disagree.

       A “pattern of racketeering activity” is defined (rather unhelpfully) in 18 U.S.C.
§ 1961(5). Before Misischia filed his state court lawsuit, the Supreme Court construed
the term as requiring proof of related racketeering predicates that pose a threat of
continued criminal activity. H.J., Inc. v. Northwestern Bell Tel. Co., 

,
239 (1989). Applying this standard, we had affirmed the dismissal of RICO claims
based upon predicate acts occurring over a short period of time and threatening no


                                          -5-
future criminal conduct. See Thornton v. First State Bank of Joplin, 

(8th
Cir. 1993); Lange v. Hocker, 

(8th Cir. 1991). Here, Misischia’s
amended RICO complaint alleged ten predicate acts that occurred in the year before
he filed the state court action in October 1994. Those acts may or may not have been
sufficient to state and prove a RICO violation. But they caused the bulk of
Misischia’s alleged injuries -- wrongful suspension, a psychiatric evaluation,
termination, and the filing of a false NPDB report -- and the alleged predicate acts
occurring thereafter added little if anything to his RICO claims. Thus, whether or not
sound, the RICO claims could have been raised in October 1994.

        In particular, the three “extortionate” letters exchanged with counsel for St.
John’s in 2001 and 2002, on which Misischia places great emphasis, were so unrelated
to the events of 1993 and 1994 as to add nothing to the showing that the earlier acts
reflected “a threat of continued racketeering activity,” the prerequisite of a RICO
claim under H.J., 

. In these circumstances, we agree with the
district court that Misischia’s RICO claims -- and likewise his state law civil
conspiracy claim -- could have been raised in the state court suit and are therefore
barred by the prior state court judgment. The question is not whether the alleged
predicate acts occurring after the state court judgment would support an independent
RICO claim. The question is whether adding those predicate acts to the acts occurring
in 1993 and 1994 can revive RICO claims that are otherwise barred. “The doctrine
of res judicata would become meaningless if a party could relitigate the same issue .
. . by merely positing a few additional facts that occurred after the initial suit.” Dubuc
v. Green Oak Township, 

, 751 (6th Cir. 2002).

                                   III. Other Issues

      Having concluded that the district court properly dismissed all of Misischia’s
federal and state claims with prejudice as barred by the doctrine of res judicata, we
need not consider the court’s alternative holding that the RICO claims are barred by

                                           -6-
RICO’s four year statute of limitations. See generally Rotella v. Wood, 

(2000); Klehr v. A.O. Smith Corp., 

(1997); Love v. Nat’l Med. Enters.,
Inc., 

, 772-75 (5th Cir. 2000); In re Merrill Lynch Ltd. P’Ships Litig.,

, 58-60 (2d Cir. 1998).

       Misischia further argues that the district court abused its discretion in denying
him leave to amend his complaint. This contention is without merit. In the district
court, Misischia raised this issue with a one line request in his brief opposing
defendants’ motion to dismiss: “in the alternative, should the Court disagree with
Plaintiff, Plaintiff respectfully requests leave to amend his Complaint.” He made no
motion for leave to amend and did not explain the substance of his proposed
amendment. Thus, there was no abuse of discretion. See United States ex rel. Lee v.
Fairview Health Sys., 

, 750 (8th Cir. 2005). Misischia also argues that
the district court erred in denying his motion to disqualify St. John’s attorneys. As the
entire lawsuit was properly dismissed with prejudice, this issue is moot.

        Defendants filed motions for sanctions under Rule 38 of the Federal Rules of
Appellate Procedure and for an award of attorneys fees under 28 U.S.C. §§ 1912 and
1927, asserting that Misischia’s appeal is frivolous. Under Rule 38, an appeal is
frivolous “when the result is obvious or when the appellant’s argument is wholly
without merit.” Newhouse v. McCormick & Co., 

, 305 (8th Cir. 1997)
(citations omitted). Here, while Misischia’s attempt to prolong a dispute already
litigated in multiple forums is hardly worthy of praise, the res judicata and statute of
limitations issues are subject to reasonable dispute, and if Misischia had prevailed on
his broadest contentions, the RICO claims could have gone forward against all
defendants. Accordingly, we deny the motions.

      The district court’s order of dismissal dated August 5, 2005 is affirmed.
                       ______________________________



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