OPINION
{1} Plaintiff-Petitioner Patricia Tomlinson brought a medical malpractice action against Defendant-Respondent Dr. Jacob George. The district court granted George’s motion for summary judgment based on the ground that Tomlinson failed to file within the three-year statute of repose period. The Court of Appeals affirmed the district court by unanimous opinion based on several cases from this Court, Tomlinson v. George,
{2} We address whether the fraudulent concealment doctrine equitably tolls the statute of repose, NMSA 1978, § 41-5-13 (1976), so as to permit Tomlinson to file a malpractice action more than three years after the alleged act of malpractice in light of the fact that she was aware of the act four months into the three-year period and thus had approximately two years and eight months within which to file her claim. Under a direct application of the fraudulent concealment doctrine set out in this Court’s opinion in Kern ex rel. Kern v. Saint Joseph Hospital, Inc.,
{3} Finally, we conclude that the district court properly found that Tomlinson had a constitutionally reasonable period of time under the statute of repose within which to file her claim under Garcia ex rel. Garcia v. La Farge,
I. Facts and Background
{4} Tomlinson fractured and dislocated her wrist in an automobile accident on August 20, 1996. George, an orthopedic surgeon, performed a closed external reduction of the fracture on the day of the injury and applied a cast. George x-rayed Tomlinson’s wrist on August 27, October 1, and November 5, and believed that her wrist was healing properly. George did not treat Tomlin-son after November 5, 1996. On December 24, 1996, Tomlinson obtained her original x-rays from George taken on the three dates and saw Dr. Alfred Blue, a Seattle-based reconstructive hand surgeon; Blue opined that George had negligently treated Tomlin-son. Both Tomlinson and George agree that Tomlinson knew she had a potential medical malpractice claim against George on December 24,1996. Between February of 1997 and July of 1999, Tomlinson had several surgeries and numerous treatments and evaluations by other physicians.
{5} Tomlinson filed an application with the New Mexico Medical Review Commission on December 13, 1999. 1 Tomlinson filed a complaint against George for medical malpractice on March 2, 2000. George filed a motion for summary judgment based on Tomlinson’s failure to file within the three-year limitation period of Section 41-5-13. Tomlinson “accept[ed] that [Section 41-5-13] requires the filing of a claim within three years of an occurrence, and if there had not been [a] fraudulent concealment, the last date to file a claim would have been on November 5, 1999.” Tomlinson argued to the district court that George’s alleged fraudulent concealment should toll Section 41-5-13 on a day-for-day basis so that the three-year limitation did not run between November 5, 1996, and December 24, 1996. Although the parties, the district court, and the Court of Appeals assumed, for purposes of the fraudulent concealment discussion, that the last possible date of alleged malpractice was on November 5, 1996, Tomlinson contended at oral argument before this Court that the occurrence of alleged malpractice was on August 20, 1996, when George performed a closed external reduction of Tomlinson’s wrist. For clarity of the issues, we agree that it is helpful to identify the actual occurrence date for Section 41-5-13 as August 20, 1996, rather than presume the last day that George saw Tomlinson constituted the date of occurrence. Thus, Section 41-5-13 began to run from this date, and Tomlinson had until August 20, 1999, to file her complaint.
{6} In her complaint, Tomlinson alleged that George failed to inform her on August 27,1996, when he took a second set of x-rays, that her wrist was improperly set, and that his continued assurances that she was healing properly constituted fraudulent concealment. Tomlinson thus alleges that the period of concealment began on August 27 and ended on December 24, 1996, or approximately four months, when she was informed by Blue that she was, in his opinion, negligently treated by George.
{7} The district court noted that Tomlin-son was aware of the alleged malpractice on December 24, 1996. The district court discussed Kern, La Farge, and Cummings, and decided that this Court’s opinions in Cummings and Kern controlled the present case. The district court recognized that Cummings,
II. Discussion
A. Section 41-5-13 and Fraudulent Concealment
{8} Section 41-5-13 provides that “[n]o claim for malpractice arising out of an act of malpractice ... may be brought against a health care provider unless filed within three years after the date that the act of malpractice occurred.” “The statute of repose of the Medical Malpractice Act forecloses any cause of action that does not accrue within three years of the act of malpractice.” Cummings,
Two basic standards determine the beginning of the time period in which a patient must file a claim for medical malpractice. One is sometimes called the “discovery rule.” The time period under this rule does not begin to run until the patient discovers, or reasonably should discover, the essential facts of his or her cause of action. This discovery date may be the patient’s first subjective awareness that something is wrong — the first feelings of pain or discomfort. The discovery date may also be the first objective confirmation through medical diagnosis that previous medical care was improper. The other standard is sometimes called the “occurrence rule.” This rule fixes the accrual date at the time of the act of medical malpractice even though the patient may be oblivious of any harm.
Id. ¶ 47. We recognized that the plain language of Section 41-5-13 requires a claim to be filed within three years of the occurrence of the negligent act and that Section 41-5-13 operates as a statute of repose rather than a statute of limitation. Id. ¶ 48. “[A] statute of repose terminates the right to any action after a specific time has elapsed, even though no injury has yet manifested itself.” Id. ¶ 50.
{9} Section 41-5-13’s statutorily determined triggering event is, under the occurrence rule, the act of medical malpractice “and does not entail whether the injury has been discovered.” Cummings,
{10} The date that George performed the closed reduction on Tomlinson’s wrist, August 20, 1996, is the date that the alleged act of malpractice occurred. Direct application of Section 41-5-13 thus requires Tomlinson to file her suit on or before August 20, 1999. On December 24, 1996, Dr. Blue informed Tomlinson that he believed that George was negligent; thus, Tomlinson was aware of a potential claim for malpractice against George for approximately two years and eight months before the deadline under the statute of repose. Tomlinson filed her application on December 13, 1999, approximately three months and three weeks after the statute of repose deadline.
{11} In order to toll the statute of repose based on the physician’s fraudulent concealment, the plaintiff “has the burden ... of showing ... that the physician knew of the alleged wrongful act and concealed it from the patient or had material information pertinent to its discovery which he [or she] failed to disclose.” Kern,
{12} In the present case, Tomlinson argues that her claim was timely because Section 41-5-13 was tolled by George’s alleged fraudulent concealment based on his assurances that her wrist was healing properly when that was false. George disputed that there was fraudulent concealment on his part. The district court judge noted that Tomlinson based her allegation of fraudulent concealment on these assurances and stated that he did not “believe that this simple assertion is sufficient to establish a material fact on the question of fraudulent concealment;” however, he stated that the more important issue was his decision that the doctrine of fraudulent concealment did not apply when discovery occurred within the statutory period. We agree with the district court that our precedent as discussed above as well as cases from other jurisdictions addressed allegations establishing fraudulent concealment much more clearly than George’s mere assurance regarding Tomlin-son’s wrist. See Earle,
{13} Kern specifically addressed fraudulent concealment and Section 41-5-13 and controls the present matter. In Kern, this Court overturned a grant of summary judgment in favor of the defendant in relation to a plaintiffs claim, which was filed approximately two years and six months after the end of the three-year limitation, where there was a genuine issue of material fact that the defendant fraudulently concealed the act of malpractice for the entire three-year period.
{14} Fraudulent concealment is based upon the principle that a defendant who has prevented the plaintiff from bringing suit within the statutory period should be estopped from asserting the statute of repose as a defense based on equitable estoppel. Kern,
{15} Applying Kern to this case, Tomlinson must show that she did not know of her cause of action within the statutory period in order to toll the statute of repose. Even assuming that George’s assurances regarding Tomlinson’s wrist constituted fraudulent concealment, these actions did not prevent Tomlinson from bringing suit within the statutory period. Thus, because George’s actions did not prevent Tomlinson from filing her suit within the statutory period, George should not be estopped from asserting the statute of repose as a defense. As it is undisputed that Tomlinson knew of her cause of action for two years and eight months prior to the expiration of the statutory period, Section 41-5-13 is not tolled, and her claim is barred under Kern.
{16} Both the district court and the Court of Appeals in the present matter reached the same conclusion regarding Kern. The Court of Appeals concluded that “[{Implicit in Kern is that tolling is not available when the fraudulent concealment of the act of malpractice is discovered within the three-year period.” Tomlinson,
{17} The resolution of this ease is somewhat complicated by another recent Court of Appeals’ published opinion, which, although decided a short time after Tomlinson, directly conflicts with Tomlinson. Juarez,
{18} Although the Juarez Court relied on portions of Kern, it stated that the requirement that a plaintiff not discover the malpractice within the statutory period in Kern was “non-binding dicta, which [has] been overtaken by the Supreme Court’s more recent pronouncements in” La Farge. Juarez,
{19} Our opinion in La Farge has understandably created confusion for the application of Kern. For clarity, we emphasize that the fraudulent concealment analysis of Kern is distinct and separate from the due process analysis discussed in La Farge and Cummings. In La Farge, we expressly concluded that the fraudulent concealment issue was non-dispositive and moot in a case in which the malpractice was discovered eighty-five days before the running of the statutory time period because we held that such a short period was unconstitutional.
B. La FargejCummings Substantive Due Process Analysis
{20} As we concluded above, Section 41-5-13 is not tolled by George’s alleged fraudulent concealment because Tomlinson knew of her cause of action within the statutory period. Because the doctrine of fraudulent concealment does not allow Tomlinson’s claim to go forward, we next address whether the district court properly applied the substantive due process analysis of La Farge and Cummings.
{21} In La Farge, we concluded, on constitutional substantive due process grounds, that the plaintiffs claim should be permitted because the negligent act was not discovered until eighty-five days before the statutory deadline.
{22} Following La Farge, we again examined, at length, due process and Section 41-5-13 in Cummings. We addressed Section 41-5-13 in a case in which a defendant negligently missed a cancerous mass on x-rays and the plaintiff filed her claim after the three-year statute of repose expired. Cummings,
{23} Cummings thus demarcates the outer boundary of La Farge; we read these cases as complementary rather than conflicting. While La Farge holds that a plaintiff who discovers the injury or malpractice during the statutory period as it runs from the occurrence of the negligent act must have a reasonable period of time from the discovery to file his or her claim, Cummings concludes that one and one-half years is a constitutionally reasonable period of time within which to file a claim. See Cummings,
{24} Because the fraudulent concealment doctrine does not toll Section 41-5-13 for Tomlinson, and because the district court ruled on the issue, we address whether the due process analysis excuses Tomlinson’s late filing. In the present case, the district court determined that, under the substantive due process analysis of La Farge, almost three years was not “an unreasonably short period of time within which to bring an accrued cause of action.” We agree. Tomlinson had almost the entire statutory period within which to file her claim. In La Farge, we concluded that eighty-five days was an unreasonably short period of time. On the other hand, Cummings holds that one and one-half years is not too short a time and that a plaintiff who does not file his or her claim in that period of time loses the claim through a lack of diligence. Cummings,
C. Clarification of Tolling Section 41-5-13 Based on Fraudulent Concealment
{25} Section 41-5-13 requires plaintiffs to file their claims within three years from the date the malpractice occurs. With Section 41-5-13, the Legislature, in order to alleviate the “unfair burden upon the medical profession” created by a discovery rule, “precludefs] almost all malpractice claims from being brought more than three years after the act of malpractice.” Cummings,
{26} We also reaffirm, however, that the statute of repose is not tolled if the patient knew, or through the exercise of reasonable diligence should have known, of his or her claim within the statutory period. We cannot exercise the equitable principle of fraudulent concealment and deny the defendant’s reliance upon Section 41-5-13 where the plaintiff knew of the cause of action within the statutory period. In such circumstances, the defendant’s actions did not prevent the plaintiff from pursuing the claim. “The limitations period ... encourages the patient, once the injury has been discovered, to diligently pursue his or her claim.” Cummings,
{27} When the plaintiff discovers the cause of action within three years of the date of malpractice, thereby precluding equitable relief for fraudulent concealment under Kern, the. plaintiff will necessarily, as a matter of due process, have a reasonable time within which to file a claim, either under the three year limitations period itself or under the La Farge/Cummings due process analysis. Thus, the Kern fraudulent concealment doctrine applies only to claims discovered after the statutory period has expired. Apart and independent from fraudulent concealment, if a plaintiff discovers the potential claim during the statutory period but has an unreasonably short period of time within which to file, a plaintiff may argue to the district court that Section 41-5-13 is unconstitutional as applied under the La Farge/Cummings due process analysis. We conclude that this flexibility provides district courts with some level of discretion to relax Section 41-5-13’s strict three-year occurrence rule in unusual eases involving exceptional circumstances as a matter of fairness while upholding the legislative protection for physicians and assuring New Mexicans access to health care.
III. Conclusion
{28} Tomlinson’s cause of action is barred by operation of Section 41-5-13. Applying the fraudulent concealment analysis of Kern to the present matter, and assuming that George fraudulently concealed his act of alleged malpractice, we conclude that the principle does not toll the statute of repose because Tomlinson discovered the alleged act of malpractice within the statutory period. Tomlinson’s cause of action is barred by Section 41-5-13 because she knew of her cause of action and had over two years and eight months during the statutory period in which to file her claim. George’s alleged fraudulent concealment did not prevent Tomlinson from filing her claim within three years from the date of alleged malpractice. Under our separate substantive due process analysis, we conclude that Section 41-5-13 as applied to Tomlinson is not unconstitutional because two years and eight months is an adequate period of time within which to file a claim.
{29} We conclude that the Court of Appeals and the district court did not err by determining that Tomlinson’s claim should be dismissed by operation of Section 41-5-13. Thus, we affirm the district court’s grant of summary judgment dismissing Plaintiffs claim.
{30} IT IS SO ORDERED.
Notes
. NMSA 1978, § 41-5-22 (1976) provides that "[t]he running of the applicable limitation period in a malpractice claim shall be tolled upon submission of the case for the consideration of the panel and shall not commence to run again until thirty days after the panel’s final decision is entered.”
. Although Garcia was published in 1979, the act of malpractice occurred in 1972.
