[¶ 1] John Schanilec appealed from the memorandum decision and order granting Grand Forks Clinic summary judgment in his medical malpractice suit. Because Schanilec was on notice of his potential claim more than two years before he filed suit, the case was barred by the statute of limitations in medical malpractice cases and summary judgment was appropriate. We affirm.
I
[¶ 2] Schanilec was in a car accident on November 18, 1981. As a result of the accident, he was treated by Dr. John Lam-bie and others at the Grand Forks Clinic from November 24, 1981, to February 1994. He was being treated for back problems, which the doctors at the clinic had diagnosed as fibrositis, a muscular condition.
[¶ 3] Schanilec says he asked Dr. Lam-bie for a referral to an orthopedic surgeon, but when Dr. Lambie refused and referred him to a rheumatologist instead, he sought the assistance of Dr. A.J. Kotnik of Grafton. When Schanilec saw Dr. Kotnik on February 14, 1994, Kotnik referred him back to the Grand Forks Clinic, this time to Dr. Stuart Rice for a neurology evaluation of his back. An appointment was scheduled at the Grand Forks Clinic for May 10, 1994, but Schanilec arranged an earlier appointment at The Orthopaedic Clinic with Dr. John Zeller and did not show up for his May 10 appointment at the Grand Forks Clinic.
[¶ 4] On February 19, 1994, Schanilec met with Dr. Zeller, who referred him to Dr. Jerry Sampson at the Dakota Clinic in Fargo for a discogram. Schanilec concedes that in February of 1994, he learned he had, in fact, sustained a compression fracture of vertebrae in his lower back. He had previously been told he had a bulging disc in the same location, but the doctors at the Grand Forks Clinic diagnosed his problem as muscular rather than skeletal.
[¶ 5] On April 14,1994, Dr. Francis Denis discussed the results of the discogram with Schanilec and explained that the dis-cogram done above and below the L2-3 and L3-4 levels showed essentially the Ll-2 level to be intact and the L4-5 level to produce some pain. “L” refers to the lumbar vertebrae in the lumbar region of the spinal column. Dr. Denis then advised Schanilec the reasonable course would be to proceed with a surgical fusion at disc L2 to L4, and explained the potential risks and the details of the surgery. The surgery, consisting of an anterior spinal fusion of L2-3 and L3-4, followed by a posterior spinal reconstruction of L2-3 and L3-4 and bone graft, was performed on Schani-lec on May 17, 1994. During surgery, Dr. Denis found a large fragment of bone at Sehanilec’s spine. According to Dr. Denis, “[t]his was confirming the x-ray appearance, which was suggestive of a hyperex-tension injury at that level, back years ago.”
[¶ 6] Schanilec began this action on March 25, 1996, alleging negligence by Grand Forks Clinic in: (1) the original diagnosis and failure to properly diagnose and treat; (2) failing to inform about the fractured vertebrae; and (3) refusing to refer him to another clinic or physician.
[¶ 7] The district court granted Grand Forks Clinic’s motion for summary judgment because Schanilec’s medical malpractice action was not begun within two years of discovery of the alleged malpractice, as required by N.D.C.C. § 28-01-18(3). The district court had jurisdiction under N.D.C.C. § 27-05-06. This Court has jurisdiction under N.D. Const, art. VI, § 6, and N.D.C.C. § 28-27-01.
II
[¶ 8] Summary judgment is a procedure for the prompt and expeditious disposition *255of a controversy without trial if either litigant is entitled to judgment as a matter of law, if no dispute exists as to either the material facts or the inferences to be drawn from undisputed facts, or if resolving factual disputes would not alter the results. Swenson v. Raumin, 1998 ND 150, ¶ 8, 583 N.W.2d 102 (citing Perry Center, Inc. v. Heitkamp, 1998 ND 78, ¶ 12, 576 N.W.2d 505). On appeal, this Court reviews the evidence in a light most favorable to the party opposing the summary judgment motion. Id. (citing Freed v. Unruh, 1998 ND 34, ¶ 6, 575 N.W.2d 433).
[¶ 9] In considering a motion for summary judgment, a court may examine the pleadings, depositions, admissions, affidavits, interrogatories, and inferences to be drawn from the evidence to determine whether summary judgment is appropriate. Id. at ¶ 9 (citing Matter of Estate of Otto, 494 N.W.2d 169, 171 (N.D.1992)). Although the party seeking summary judgment has the burden to clearly demonstrate there is no genuine issue of material fact, the court must also consider the substantive standard of proof at trial when ruling on a summary judgment motion. State Bank of Kenmare v. Lindberg, 471 N.W.2d 470, 474-75 (N.D.1991). The party resisting the motion may not simply rely upon the pleadings or upon unsupported, conclusory allegations, but must present competent admissible evidence by affidavit or other comparable means, raising an issue of material fact, and must, if appropriate, draw the court’s attention to relevant evidence in the record raising an issue of material fact. Kummer v. City of Fargo, 516 N.W.2d 294, 297 (N.D.1994). Summary judgment is proper against a party who fails to make a showing sufficient to establish the existence of an element essential to the party’s case and on which that party will bear the burden of proof at trial. Matter of Estate of Stanton, 472 N.W.2d 741, 746 (N.D.1991).
A
[¶ 10] Schanilec argues the district court erred in granting summary judgment, because his medical malpractice action was not barred by the two-year statute of limitations.
The following actions must be commenced within two years after the claim for relief has accrued:
3. An action for the recovery of damages resulting from malpractice; provided,’however, that the limitation of an action against a physician or licensed hospital will not be extended beyond six years of the act or omission of alleged malpractice by a nondiscovery thereof unless discovery was prevented by the fraudulent conduct of the physician or licensed hospital. This limitation is subject to the provisions of section 28-01-25.
N.D.C.C. § 28-01-18(3).
[¶ 11] The statute is silent on when an action accrues, and consequently the determination of when an action accrues is an issue for the court. Baird v. American Medical Optics, 155 N.J. 54, 713 A.2d 1019, 1025 (1998). In the context of medical malpractice actions, a cause of action generally accrues on the date the alleged act or omission occurred. Id. To ameliorate the often harsh and unjust results of such a rigid rule, most courts have adopted the discovery rule. Id. The discovery rule is meant to balance the need for prompt assertion of claims against the policy favoring adjudication of claims on the merits and ensuring that a party with a valid claim will be given an opportunity to present it. Buck v. Miles, 89 Hawai'i 244, 971 P.2d 717, 722 (1999) (citation omitted).
[¶ 12] This Court has adopted the discovery rule in medical malpractice cases and held the two-year statute of limitations begins to run “when the plaintiff knows, or with reasonable diligence should know, of (1) the injury, (2) its cause, and (3) the *256defendant’s possible negligence.” Zettel v. Licht, 518 N.W.2d 214, 215 (N.D.1994) (citing Wheeler v. Schmid Laboratories, Inc., 451 N.W.2d 133 (N.D.1990)); see also Iverson v. Lancaster, 158 N.W.2d 507 (N.D.1968) (first North Dakota case to adopt the discovery rule).
[¶ 13] This Court has held:
[T]he focus is upon whether the plaintiff has been apprised of facts which would place a reasonable person on notice that a potential claim exists. It is not necessary that the plaintiff be subjectively convinced that he has been injured and that the injury was caused by the defendant’s negligence.
Wheeler, 451 N.W.2d at 137 (quoting Wall v. Lewis, 393 N.W.2d 758, 761 (N.D.1986)). See also Buck, 971 P.2d at 722-23 (legal knowledge of defendant’s negligence is not required); Baird, 713 A.2d at 1025 (discovery rule delays the accrual of the cause of action until “the injured party discovers, or by an exercise of reasonable diligence and intelligence should have discovered that he may have a basis for an actionable claim”); Langner v. Simpson, 533 N.W.2d 511, 516-17 (Iowa 1995) (statute of limitations begins to run when plaintiff knew or through the use of reasonable diligence should have known of the injury); Sweeney v. Preston, 642 So.2d 332, 333-34 (Miss.1994) (quoting Smith v. Sanders, 485 So.2d 1051, 1052 (Miss.1986)) (“The focus is upon the time that the plaintiff discovers, or should have discovered, by the exercise of reasonable diligence, that he probably had an actionable injury.”); Sparks v. Metalcraft, Inc., 408 N.W.2d 347, 351 (Iowa 1987) (citation omitted) (“The statute begins to run when the person gains knowledge sufficient to put him on inquiry. On that date, [the person] is charged with knowledge of facts that would have been disclosed by a reasonably diligent investigation.”); Oliver v. Kaiser Community Health Found., 5 Ohio St.3d 111, 449 N.E.2d 438, 443-44 (1983) (a cause of action accrues in a medical malpractice case and the statute of limitations commences to run when the patient discovers, or in the exercise of reasonable care and diligence should have discovered, the resulting injury); Witherell v. Weimer, 85 Ill.2d 146, 52 Ill.Dec. 6, 421 N.E.2d 869, 874 (1981) (statute of limitations begins to run when a person knows or reasonably should know of the injury or knows or reasonably should know the injury was wrongfully caused); Young v. McKiegue, 303 Ill.App.3d 380, 236 Ill.Dec. 907, 708 N.E.2d 493, 499 (1999) (discovery rule tolls the statute of limitations until the plaintiff knows or should have known of the injury); Charter Peachford Behavioral v. Kohout, 233 Ga.App. 452, 504 S.E.2d 514, 521 (1998) (cause of action accrues when a plaintiff discovers, or with reasonable diligence should have discovered, the injury); Deschamps v. Pulley, 784 P.2d 471, 473 (Utah Ct.App.1989) (statute of limitations does not begin to run until the person knows or should know of the injury and knows or should know the injury was caused by negligence); Hershberger v. Akron City Hosp., 34 Ohio St.3d 1, 516 N.E.2d 204, 208 (1987) (trial court must determine “when the injured party became aware, or should have become aware, of the extent and seriousness of his condition ... and whether such condition would put a reasonable person on notice of need for further inquiry as to the cause of such condition”).
[¶ 14] In Bolton v. Caine, 541 A.2d 924, 925 (Me.1988), the Court analyzed a surgical malpractice action involving a foreign object left in a patient’s body, and when that action accrues. The Court recognized a case of negligent diagnosis differs from a foreign-object case because of professional judgment and discretion, but nonetheless held the discovery rule applied in these cases as well. Id. at 926. In doing so, the Bolton Court:
jointed] those states in declining to make the application of the discovery rule solely dependent on the type of evidence that may be produced at trial. The reasons compelling the application of the *257discovery rule to foreign object surgical malpractice are equally applicable to this case involving negligent diagnosis of a cancerous lesion.
Id.
[¶ 15] Other states agree with the rationale of Bolton and apply the same discovery rule to the misdiagnosis case. Oliver, 449 N.E.2d at 438; Toth v. Lenk, 164 Ind.App. 618, 330 N.E.2d 336 (1975); Frohs v. Greene, 253 Or. 1, 452 P.2d 564 (1969). See also Ford v. Dove, 218 Ga.App. 828, 463 S.E.2d 351 (1995) (the injury begins immediately upon the misdiagnosis); Moran v. Napolitano, 71 N.J. 133, 363 A.2d 346 (1976) (extending the discovery rule to misdiagnosis cases).
[¶ 16] In Schanilec’s alleged negligent diagnosis case, the district court identified the following undisputed facts:
In the case at bar, Schanilec suspected something as early as February, 1994, when he asked Dr. Lambie for a referral.... On February 19, 1994, Schanilec learned that his back problems were, in fact, skeletal, and that the diagnosis made by the Clinic were [sic] likely wrong and perhaps negligent.
In fact, Schanilec testified that when he met with Dr. Zeller for the first time (approximately February 19, 1994) [Dr. Zeller] took x-rays and [Schanilec] stated that there was a “very significant, if not total disappearance of disc spacing between [disc] L2-3 and 3-4.” ... Furthermore, [Schanilec] stated that the findings on the x-ray were obvious, that “most lay people could see on that x-ray that there was a definite problem there.”
The district court concluded that on or about February 19, 1994, Schanilec knew, or with reasonable diligence should have known, of the injury, its cause, and the clinic’s possible negligence. The court concluded the date Schanilec began this action — March 25, 1996 — was beyond the two-year statute of limitations and granted the clinic summary judgment.
[¶ 17] In Zettel, this Court upheld a summary judgment dismissing a plaintiffs case in which the patient had immediately recognized the radiologist’s possible negligence for failing to properly conduct and monitor a procedure, but did not file suit against the assisting technician. 518 N.W.2d at 216. The patient knew the medical technician assisted in conducting the procedure, and he was also aware that his injury could have been the result of improper needle placement or careless movement causing the needle to pull loose during the procedure. Id. This Court held that with this knowledge, a reasonable person would recognize the technician or anyone else directly involved in assisting with the procedure could possibly have acted negligently, thereby causing the injury. Id. There was no more reason to suspect the injury was caused by the negligence of the doctor than by the negligence of the medical technician. Id. In this Court’s view, a reasonable person would have recognized the need to investigate the possible negligence of all persons assisting with the procedure. Id. See also Froysland v. Altenburg, M.D., 439 N.W.2d 797, 798 (N.D.1989) (upholding summary judgment against the plaintiff when he knew or should have known of the possible claim).
[¶ 18] We hold the discovery rule is no different in a negligent diagnosis case than it is in any other claimed medical malpractice case. By the end of February 1994, Dr. Zeller diagnosed Schanilec as suffering not from fibrositis but from back problems caused by fractured vertebrae and collapsed discs. At this point, Schani-lec knew the prior diagnosis by the Grand Forks Clinic had been wrong. Schanilec conceded in his deposition he “had the whole picture together” and he could tell the injury was not fibrositis, but was skeletal, in February 1994. With this knowledge, and with the recurring problems Schanilec had experienced, he knew, or reasonably should have known, the earlier *258diagnosis was possibly negligent.1. A reasonable person in Schanilec’s position would have known, or should have known, of the injury, its cause, and the defendant’s possible negligence.
[¶ 19] To trigger the running of the statute of limitations, Schanilec need not fully appreciate the potential liability or even be convinced of his injury; he need only know enough to be on notice of a potential claim. The discovery rule assures the statute does not begin to run until a reasonably diligent person becomes aware of a potential claim. Schanilec’s own testimony established that no later than February of 1994, he knew enough to discover his cause of action against the Grand Forks Clinic, and this put him on notice more than two years before March 26, 1996, when he began this action. This case was begun beyond the two-year statute of limitations in malpractice cases and is barred by N.D.C.C. § 28-01-18(3).
[¶ 20] Schanilec argues the discovery of his injury is a question of fact appropriate for a jury. “ ‘A malpractice plaintiffs knowledge is ordinarily a fact question which is inappropriate for summary judgment, but the issue becomes one of law if the evidence is such that reasonable minds could draw but one conclusion.’ ” Froysland, 439 N.W.2d at 799 (quoting Wall, 393 N.W.2d at 761). Reasonable minds could draw only one conclusion: Schanilec knew, or should have known, of his injury, its misdiagnosis, and the possible negligence of the Grand Forks Clinic by late February 1994.
B
[¶ 21] It remains then to find whether an exception will toll the statute. Schanilec argues the continuous treatment doctrine works to prevent the statute from running. The continuous treatment doctrine “concept is premised upon an ongoing and continuous relationship between patient and physician.” Froysland, 439 N.W.2d at 799. The rule is clear that while the relationship of the physician and patient exists, the patient is not on notice of the negligent conduct of the physician upon whose skill and judgment the patient still relies. Iverson, 158 N.W.2d at 512 (citations omitted). This Court, however, has never adopted the continuous treatment doctrine in medical malpractice cases. See Froysland, at 799 (we have only applied the continuous representation doctrine to legal malpractice cases).
[¶ 22] Schanilec last visited Dr. Lambie at the Grand Forks Clinic on February 14, 1994. This was the last professional contact he had with the clinic or any of the doctors there. Schanilec even testified he considered his association with Dr. Lambie terminated no later than February 14, 1994.
[¶ 23] Were we to adopt the continuous treatment rule in North Dakota, Schani-lec’s claim would clearly be outside of it because his association with Dr. Lambie and Grand Forks Clinic ended on February 14,1994.
Ill
[¶ 24] The summary judgment of the district court dismissing Schanilec’s claim *259against Grand Forks Clinic, Ltd., is affirmed.
[¶ 25] VANDE WALLE, C.J., and KAPSNER, J., concur.. The dissent says, “Nothing in the record indicates Schanilec knew or should have known he sustained an injury caused by Dr. Lambie's failure to diagnose earlier a vertebral fracture and two collapsed discs.” But in fact the record establishes Schanilec had suffered years of pain. He knew something was wrong, which is why he persisted in seeking alternative medical advice, and, on February 19, 1994, "had the whole picture together.”
The dissent says, "However, under our cases, he must also be apprised of facts that would put a reasonable person on notice he sustained an injury, i.e., accelerated collapse of his vertebral discs.... ” The language following "i.e.” reflects the flaw in the dissent's analysis. The plaintiff was on notice of injury by February 19, 1994. None of our cases require a person reasonably on notice of injury to be aware of every dimension of the injury. Anderson v. Shook, 333 N.W.2d 708, 711 (N.D.1983). Schanilec knew of the pain and suffering, itself "injury,” N.D.C.C. § 32-03.2-04(2); see Nitschke v. Barnick, 226 N.W.2d 785 (N.D.1975); Marts v. Cauley, 118 Ga.App. 343, 163 S.E.2d 751 (1968), and of the collapsed discs.