MEMORANDUM OPINION AND ORDER
MILTON I. SHADUR, Senior District Judge.
Silver Cross Hospital and Medical Centers ("Silver Cross") has filed a Fed.R.Civ.P. ("Rule") 12(b)(6) motion to dismiss the putative Class Action Complaint brought against it by Brian Falls ("Falls"), and its motion has now been fully briefed by the parties and is accordingly ripe for decision. In this instance this Court confronts the unusual situation in which different Illinois Appellate Courts, neither sitting in the Appellate District that is the situs of this lawsuit, have reached decisions of opposite polarity-so that the familiar turn of phrase, under which the function of a federal court in a diversity action is described as predicting how the Illinois Supreme Court would resolve the issue if confronted by it, states the applicable rule of decision in bold relief.
Falls was provided medical services rendered by Silver Cross to deal with injuries that he had sustained in an automobile accident in which the other party involved was guilty of negligence-negligence that triggered a lawsuit against that tortfeasor that eventuated in an $85, 000 settlement paid for by the tortfeasor's insurer. Falls was covered by health insurance written by United HealthCare Insurance Company ("United"), which in turn had earlier entered into a December 1, 2010 detailed and comprehensive Facility Participation Agreement (the "Agreement") with Silver Cross.
This opinion's earlier reference to the Agreement as "detailed and comprehensive" was not at all hyperbolic: Its text (exclusive of the signature page and six pages of Appendices) comprises 14 closely-packed single-spaced provisions printed in a type font considerably smaller than the 12 point type in which this opinion is written (as an eyeball estimate, rather than by actual measurement, the Agreement looks to be set in 8 point type). And it was negotiated between sophisticated contracting parties-United and Silver Cross (which is defined as the "Facility" under the Agreement). Here, then, is the relevant language from the key sections of the Agreement:
6.7 Payment Under This Agreement is Payment in Full. Payment as provided under section 6.4, together with any co-payment, deductible or coinsurance for which the Customer [here, Falls] is responsible under the Benefit Plan, is payment in full for a Covered Service. Facility will not seek to recover, and will not accept, any payment from the Customer, United, Payer or anyone acting in their behalf, in excess of payment in full as provided in this section 6.7, regardless of whether such amount is less than Facility's billed charge or Customary Charge.
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6.8 Customer "Hold Harmless." Facility will not bill or collect payment from the Customer, or seek to impose a lien, for the difference between the amount paid under this Agreement and Facility's billed charge or Customary Charge....
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6.9 Consequences for Failure to Adhere to Customer Protection Requirements. If Facility collects payment from, brings a collection action against, or asserts a lien against a Customer for Covered Services rendered (other than for the applicable co-payment, deductible or coinsurance), contrary to Section 6.7 or 6.8 of this Agreement, Facility shall be in breach of this Agreement. This section 6.9 will apply regardless of whether Customer or anyone purporting to act on Customer's behalf has executed a waiver or other document of any kind purporting to allow Facility to collect such payment from Customer.
In accordance with those provisions of the Agreement, Silver Cross billed United, and was paid, the sum of $5, 957.15 to cover the total cost of Falls' treatment at the hospital from the March 6, 2011 date of the automobile accident through March 8, the date Falls was discharged from the hospital. That amount was "payment in full" for Silver Cross' services (section 6.7), barring it from billing or collecting payment from Falls or from seeking to impose a lien for the difference between that amount and Silver Cross' "billed charge or Customary Charge" (section 6.8). Yet three weeks later Silver Cross asserted a Notice of Hospital Lien purporting to amount to $18, 129.50 "on any money due or owing on any claim or causes of action for compensation, damages, contributions, settlements or judgment from ANY PERSON OR INSURANCE COMPANY LIABLE who is alleged to have caused the injuries and to be liable therefore [sic]."
Falls' lawsuit challenges Silver Cross' right to do so. And as the predicate for bringing the lawsuit in this federal court, he seeks to invoke the special provisions of the Class Action Fairness Act ("CAFA, " 28 U.S.C. §1332(d)) on the bases (1) that some members of the putative class who have been treated similarly are not Illinois citizens (Silver Cross' corporate citizenship is Illinois-based) and (2) that the total amount in controversy on the part of the putative class members exceeds $5 million.
Silver Cross' motion to dismiss relies on the Illinois Health Care Services Lien Act ("Lien Act, " 770 ILCS 23/10) and the decision of the Illinois Appellate Court for the Fourth District in Rogalla v. Christie Clinic, P.C. , 341 Ill.App.3d 410, 794 N.E.2d 384 (4th Dist. 2003). For his part, Falls points to two decisions by the Illinois Appellate Court for the Second District: one in N.C. ex rel. L.C. v. A.W. ex rel. R.W. , 305 Ill.App.3d 773, 713 N.E.2d 775 (2d Dist. 1999)(a case that preceded Rogalla and whose analysis was rejected by the latter case), and the other in a post-Rogalla case, Lopez v. Morley , 352 Ill.App.3d 1174, 817 N.E.2d 592 (2d Dist. 2004)(which in turn looked at what the Fourth District had done and rejected it in favor of adhering to N.C. ). Because, as ...