This сase hinges on the interpretation of certain terms in an insurance contract. Because we are uncertain exactly which documents comprise the contract, we remand the case for further proceedings in the district court.
I.
Medicare Part A, part of the federally-provided health care insurance program for older adults, pays for up to ninety days per benefit period 1 of medically necessary inpatient hospital care. If a patient requires more than ninety days of hospitalization during a benefit period, he may use some of his sixty “lifetime reserve days” (which, as the name suggests, are not renewed each benefit period). Once a patient has been hospitalized for over ninety days and has exhausted his supply of reserve days, he is not eligible for Medicare hospitalization benefits until the beginning of a new benefit period.
In response to this and other limits on Medicare coverage, insurance companies began issuing Medicare supplement insurance, commonly known as “Medigap” policies. These policies provide coverage for, inter alia, the portion of an extended hospital stay not covered by Medicare.
Blue Cross/Blue Shield of Rhode Island (“BCBS”) issued Medigap policies tо Martha Butler and Amello Esposito. Butler and Es-posito were both admitted to Vencor Hospital in Ft. Lauderdale, Florida, and required care for a period exceeding their Medicare coverage. During the period of Medicare coverage, Vencor charged Butler and Esposito only the copayment or deductible required under Medicare (which, in turn, was paid for by BCBS under the Medigap policy). Ven-cor’s costs during this period were reimbursed by Medicare. After Medicare coverage expired, Vencor began charging Butler and Esposito its ordinary rates. These rates included a substantial amount of prоfit, and were therefore greatly in excess of the amount Vencor had previously been receiving as cost reimbursement from Medicare.
After Butler and Esposito finished their hospital stays, Vencor sought payment from BCBS. Butler’s and Esposito’s Medigap policy provided for coverage as follows: “Upon exhаustion of all Medicare hospital inpatient coverage ... we will cover up to ninety percent (90%) of all Medicare Part A Eligible Expenses for hospitalization not covered by Medicare____” BCBS claimed that the policy covered ninety percent of what Medicare would have paid (i.e., cost reimbursement) for any necessary treatment; thus, Vencor was entitled only to that amount and not to ninety percent of its ordinary charges. BCBS consequently paid Vencor $240,582.13 as full payment under the policies. 2 Vencor *680 interpreted the policy somewhat differently — it claimed that the policy covered ninety percеnt of the ordinary amount charged for any Medicare-approved treatment. Vencor therefore brought suit in the United States District Court for the Southern District of Florida to recover the remaining $710,725.71 it believed was due. 3
The district court granted summary judgment for BCBS on the ground that the policy unambiguously limits payment to ninety percent of what Medicare would have paid. Vencor appeals.
II.
BCBS, as an initial matter, challenges Vencor’s standing to raise a claim. BCBS’ contracts were with Butler and Esposito— not Vencor — and therefore, according to BCBS, only Butler and Esposito have standing to sue for any breach.
We hold that Vencor is а third-party beneficiary of the contracts between BCBS and Butler and Esposito, and therefore has the right to sue for breach of the insurance contract. A party has a cause of action as a third-party beneficiary to a contract if the contracting parties express an intent primarily and direсtly to benefit that third party (or a class of persons to which that third party belongs).
See Daniel v. Florida Residential Property & Cas. Joint Underwriting Ass’n,
III.
Having determined that Vencor has standing to bring a claim, we must now determine whether there is a genuine issue of material fact regarding whether Vencor is entitled to payment based on its ordinary charges. We hold that there is, and therefore remand the case to the district court for further proceedings.
Under the policy, Vencor is entitled to ninety percent of “all Medicare Part A Eligible Expenses for hospitalization not covered by Medicare.” Eligible expenses are defined *681 as “the health care expenses covered under Medicare which Medicare has determined are reasonable and medically necessary.” The debate between Vencor and BCBS centers on whether the phrase “health care expenses” in this definition refers exclusively to types of expenses — in other words, forms of treatment — or also includes amounts of expenses.
It is unclear, however, whether the insurance policy is the only document comprising the contract between BCBS and each of the insureds. The record also contains an “Outline of Coverage” that is highly ambiguous regarding the scope of the policy’s coverage.
7
If this outline is considered part of the contract, then the contract is ambiguous regarding the contested issue, and that ambiguity must be resolved in favor of Vencor.
See Epstein v. Hartford Cas. Ins. Co.,
One reаson for considering the outline to be part of the contract is that BCBS was required to provide such an outline to Butler and Esposito under state law. See Pla. Admin. Code Ann. r. 4-51.006(3) (1990); R.I. Ins. Admin. Code r. XLVI, § 13 (1990). 8 The policy behind the state law regulatory scheme presumably is to provide the insured with a document setting forth the insured’s contractual rights with more clarity than is present in the ordinary insurance policy, thereby making it more difficult for the insurance company to defraud purchasers regarding the scope of coverage. It is possible that the legislature’s intent in this regard would be frustrated if the outline were not considered part of the contract. 9 If the outline is merely another promotional document, and not part of the contract, then the regulatory scheme would do nothing more than create additional evidence of the fraud that the legislature intended to prevent. This determination, however, requires an analysis of legislative intent that is best undertaken in the first instancе by the district court. 10
We also note that even if. BCBS’ interpretation of the policy is correct, it is nevertheless unclear what amount Vencor is due. BCBS claims that it owes Vencor the amount Medicare would have paid for Butler’s and Esposito’s treatment. The amount Medicare would have paid, however, varies according to the stage of the reimbursement process. Throughout the year, Medicare (through an intermediary) advances payment to Vencor based on an approximation of Vencor’s costs. At the end of the year, Vencor submits a cost report to Medicare; Vencor then either reсeives more payment or returns some of the previous payments depending on how the actual year-end costs compare with the estimated amounts previously advanced. In ad *682 dition, Medicare sets a target amount for annual costs; Vencor is forced to absorb costs that exceed this amоunt but receives a bonus if its costs are below the target amount. Thus, when BCBS claims that it owes Vencor only the amount that Medicare would have paid, it is unclear whether that amount is based on the preliminary advance, the final accounting, or the final accounting-plus or minus some amount related to Ven-cor’s dеviance from its annual target. 11
IV.
BCBS argues that, even if Vencor would otherwise be entitled to payment of its ordinary charges, each of Vencor’s claims is barred by the affirmative defense of accord and satisfaction.
12
“An accord and satisfaction occurs where (1) the parties intended to effect a settlement or resolve an existing dispute by entering into an agreement; and (2) the parties have engaged in actual performance in relation to the new agreement in order to resolve or settle the dispute.”
Pogge v. Department of Revenue,
In regard to the Butler claim, BCBS sent a check directly to Butler in the amount BCBS considered itself obligеd to pay under the policy. The check was accompanied by a cover letter stating that it represented full payment of Butler’s claim. Butler then gave the check to Vencor (without the cover letter), which endorsed and deposited it. This evidence shows, at most, that BCBS reached an accord аnd satisfaction with Butler. Such an agreement would have no effect on Ven-cor’s rights under the policy; 13 BCBS’ accord and satisfaction defense therefore fails in regard to the Butler claim.
In regard to the Esposito claim, payment was made directly to Vencor. According to BCBS’ Director of Provider Reimbursement, Henry Loureneo, BCBS negotiated an agreement with Carolyn Giskin of Vencor under which BCBS would pay $37,-535.45 as full payment of Esposito’s claim. A check in this amount was issued by BCBS and deposited by Vencor. Genuine issues/of material fact exist regarding whether there was an accord and satisfaction on this claim. If Loureneo and Giskin in faсt reached a settlement agreement, and if Giskin had the actual or apparent authority to act on behalf of Vencor, then such an agreement (combined with Vencor’s acceptance of the check issued by BCBS) would constitute an accord and satisfaction.
V.
For the foregoing reasons, thе judgment of the district court is VACATED and the case is REMANDED for further proceedings consistent with this opinion. 14
SO ORDERED.
Notes
. A Medicare "benefit period” begins on the first day a beneficiary is hospitalized and ends when the beneficiary has not been an inpatient in a hospital or nursing home for 60 consecutive days. See 42 U.S.C. § 1395x (1994) (using “spell of illness” instead of “benefit period").
. BCBS paid Vencor $40,921.19 for Esposito’s claim and $199,660.94 for Butler’s claim. Espo- *680 sito’s claim was paid directly to Vencor; Butler’s claim was paid to Butler in a series of checks that were given unendorsed to Vencor.
. Vencor sought $157,419.36 on the Esposito claim and $553,306.35 on the Butler claim.
. BCBS argues that the law of Rhode Island should apply to this suit. The district court, however, held that the law of Florida applies. The district court also held that there are no material differences between the relevant Rhode Island and Florida precedent — a holding with which BCBS does not disagree. We therefore apply Florida law, confident that the basic principles of contract law on which this opinion rests are equally applicable in Rhode Island or any other common law jurisdiction.
. The fact that Vencor was not identified specifically at the time of contract formation is irrelevant to whether Vencor is a third-party beneficiary. See 4 Arthur Linton Corbin, Corbin on Contracts § 781 (1951) ("[I]t is not necеssary that [the third-party beneficiaiy] be identified or identifiable at the time the contract is made. It is enough that he be identified at the time performance is due.” (footnote omitted)). Also, the fact that BCBS has discretion to pay either Ven-cor or the insured does not deprive Vencor of standing. If an absolute right to рayment were required for standing, no one (including the insured) would have standing to enforce the policy.
. In
Bonner v. City of Prichard,
. The Outline of Coverage states that upon exhaustion of Medicare benefits, the policy pays "90% of Part A expenses for an additional 365 days.” The outline then states that the insured pays "$0.00.” Read in context, these statements suggest that the insured will at most be required to pay 10% of the hospital's charges after Medicare benefits have expired, and can easily be read to mean that the insured pays nothing. Undеr BCBS’ interpretation of the policy, the insured may ultimately be held responsible for well over half of the hospital bill. For instance, if the hospital bill were $100, of which $50 represents costs that would be reimbursed by Medicare, BCBS would pay $45 (90% of $50), leaving $55 to be paid by the insured.
The record also contains a promotional brochure for the policy that makes certain representations regarding the policy’s scope of coverage. On remand, the district court should consider the significance (if any) to be accorded this brochure in interpreting the policy.
. In addition to state law regulations, there are also presently federal regulations governing Me-digap policies.
See
HHS’ Recognition of NAIC Model Standards for Regulation of Medigap Policies, 57 Fed.Reg. 37980 (1992);
see also Vencor, Inc., v. Physicians Mut. Ins. Co.,
No. Civ.A. 98-00443,
. The policy contains a merger clause stating, "The entire contract consists of the application, this agreement and any attached amendments.” Such a. clause would, on its face, prevent the court from considering the Outline of Coverage as part of the contract. If the state regulatory schemе requires the Outline of Coverage to be read into the contract, however, the merger clause is irrelevant.
. We reserve the question whether, if the Outline of Coverage is not part of the contract, the policy standing alone would support Vencor’s position.
. The amount actually paid by BCBS appears to have been based on the first of these options (the preliminary advance).
. The district court, without explanation, rejected this defense in its order granting summary judgment for BCBS. BCBS, by raising the defense on appeal presents us with an alternative ground on which to affirm the district court's grant of summary judgment—even if the district court еrred in interpreting the policy in BCBS' favor, BCBS has established the accord and satisfaction defense as a matter of law. Because we have the authority to affirm a district court's summary judgment on a ground not relied upon by the district court,
see Johnson Enters. of Jacksonville v. FPL Group,
. A third-party beneficiary contract creates a contractual relationship between the beneficiary and the promisor. See 4 Corbin, supra, § 779J. Thus, for any accord and satisfaction to affect Vencor’s rights, Vencor would have to be a party to the accord.
. Vencor, in its complaint, sought relief under a promissory estoppel theory as an alternativе to breach of contract. BCBS moved for summary judgment on this claim; the motion was denied. BCBS cross-appeals. Because Vencor’s promissory estoppel claim was merely an alternative avenue of relief, this issue is not ripe for review until such time as the breach of contract claim is decided.