Timothy and Andrea Spacht, individually and on behalf of Nicholas Spacht, a minor, sued Children’s Healthcare of Atlanta, Dr. Wendy A. Troyer, Dr. William G. Keyes, Dr. James Thomsen, Dr. Verlia Gower, Dr. Theodore Brand, and Dr. John Bleacher for medical malpractice. The Spachts supported their complaint with an affidavit from Dr. David L. Schwartz, a pediatric surgeon, who opined that the defendant doctors had deviated from the acceptable standard of care. Drs. Troyer and Keyes, both neonatologists, filed a motion to dismiss, claiming that the affidavit was insufficient under OCGA § 9-11-9.1 because Dr. Schwartz was not qualified under OCGA § 24-9-67.1 (c). Drs. Thomsen and Gower, both pediatric otolaryngologists, filed a similar motion to dismiss.
The trial court concluded that it had insufficient information to determine whether Dr. Schwartz was competent to testify against the defendant doctors and ordered an OCGA § 24-9-67.1 (d) pretrial hearing. After conducting the hearing and considering “all of the evidentiary materials of record,” including a supplemental affidavit from Dr. Schwartz and affidavits and depositions from the defendant doctors, the court granted the motions to dismiss. The Spachts then obtained a certificate of immediate review. We granted appellants’ application for interlocutory appeal. For the reasons outlined below, we affirm the trial court’s ruling.
1. Initially, the parties dispute the appropriate standard of review. OCGA § 9-11-9.1 (e) requires an affiant to meet the requirements of OCGA§ 24-9-67.1. The penalty for failure to supply a proper affidavit per OCGA § 9-11-9.1 is dismissal. Usually dismissals are subject to de novo review.1 But the interplay of the two Code sections means that, when the trial court has had the hearing contemplated *899by OCGA § 24-9-67.1 (d) as in this case, our review determines only whether the trial court has abused its discretion.2
2. The Spachts claim that the trial court erred by dismissing their complaint on issues not raised or addressed by the parties — whether Dr. Schwartz qualified as a “practicing expert” or “teaching expert” as defined in OCGA § 24-9-67.1 (c) (2). They point out that, in their motions to dismiss, the defendant doctors argued that Dr. Schwartz was not qualified to render an opinion because he lacked experience in neonatology or pediatric otolaryngology.
An expert testifying about the standard of care in a medical malpractice case need not actively practice in the same specialty or practice area as the defendant doctor.3 Thus, the fact that Dr. Schwartz is a pediatric surgeon and not a neonatologist or pediatric otolaryngologist would not have authorized the court to dismiss the Spachts’ complaint. Nonetheless, Dr. Schwartz must meet the requirements of OCGA § 24-9-67.1 to be deemed qualified to testify under OCGA § 9-11-9.1,4 and the trial court adequately notified the parties that it would be considering those issues at the OCGA § 24-9-67.1 (d) hearing.
3. We turn now to the pivotal question on appeal, whether the trial court erred in its conclusion that Dr. Schwartz was not competent to testify as an expert under OCGA § 24-9-67.1 based on its review of Dr. Schwartz’s affidavits. We find that it did not abuse its discretion in so concluding.
In pertinent part, Dr. Schwartz averred in his supplemental affidavit that
[a]s a board certified pediatric surgeon, I have the training, knowledge and experience to diagnose and surgically manage children with vascular rings, which is the medical condition at issue in this case. My knowledge and experience in diagnosing and surgically managing children with vascular rings was gained from my extensive medical training and experience. . . . Every day I cooperate with all of the specialists involved in a child’s medical care to determine whether surgery is the best option for a child. I regularly cooperate with neonatologists and pediatric otolaryngologists to manage surgical problems in children. A child with *900a vascular ring must be diagnosed immediately by neonatologists and/or pediatric otolaryngologists and then they must refer the child to a pediatric surgeon so that the pediatric surgeon may immediately evaluate the child for surgical division of the vascular ring. Based upon over thirty years of experience in diagnosing and surgically managing children with vascular rings and upon a review of the certified medical records from Children’s Healthcare of Atlanta which reflects the treatment that Dr. Troyer, Dr. Keyes, Dr. Gower, and Dr. Thomsen gave to Nicholas Spacht, it is my opinion that Dr. Troyer, Dr. Keyes, Dr. Gower [,] and Dr. Thomsen failed to exercise that degree of skill and care ordinarily required by the medical profession in general under like conditions and similar circumstances.
Dr. Schwartz then lists specific acts or omissions committed by the defendant doctors.
Pursuant to OCGA § 24-9-67.1 (c) (2), the opinion of an expert in a medical malpractice action is admissible only if, at the time of the act or omission alleged to have occurred, the expert
had actual professional knowledge and experience in the area of practice or specialty in which the opinion is to be given as the result of having been regularly engaged in: (A) The active practice of such area of specialty of his or her profession for at least three of the last five years, with sufficient frequency to establish an appropriate level of knowledge, as determined by the judge, in performing the procedure, diagnosing the condition, or rendering the treatment which is alleged to have been performed or rendered negligently by the defendant whose conduct is at issue; or (B) The teaching of his or her profession for at least three of the last five years as an employed member of the faculty of an educational institution accredited in the teaching of such profession, with sufficient frequency to establish an appropriate level of knowledge, as determined by the judge, in teaching others how to perform the procedure, diagnose the condition, or render the treatment which is alleged to have been performed or rendered negligently by the defendant whose conduct is at issue.5
Subsection (f) of the statute provides that
*901[i]t is the intent of the legislature that, in all civil cases, the courts of the State of Georgia not be viewed as open to expert evidence that would not be admissible in other states. Therefore, in interpreting and applying this Code section, the courts of this state may draw from the opinions of the United States Supreme Court in Daubert v. Merrell Dow Pharmaceuticals, Inc., 509 U. S. 579 [(113 SC 2786, 125 LE2d 469)] (1993); General Electric Co. v. Joiner, 522 U. S. 136 [(118 SC 512, 139 LE2d 508)] (1997); Kumho Tire Co. Ltd. v. Carmichael, 526 U. S. 137 [(119 SC 1167, 143 LE2d 238)] (1999); and other cases in federal courts applying the standards announced by the United States Supreme Court in these cases.6
Constant in Daubert and cases applying the standards set forth therein is the theme that the trial court is the gatekeeper of expert testimony.7 OCGA § 24-9-67.1 is consistent with this theme because it gives the trial judge the discretion to determine whether the purported expert is competent to testify. In the case at bar, the trial court considered affidavits, had a hearing, and considered late-filed affidavits on the issue before rendering its decision. This careful, fact-based procedure is precisely what the statute, OCGA§ 24-9-67.1, contemplates.8
(a) Applying the statute, the trial court concluded that Dr. Schwartz was not competent to testify as a practicing expert because, despite his averment that he regularly cooperated with neonatologists and pediatric otolaryngologists in managing pediatric surgical problems and had over 30 years of experience in diagnosing and surgically managing children with vascular rings, the record was silent as to “when within the last thirty years Dr. Schwartz ha[d] ‘diagnosed the condition’ which the doctor defendants in this case are alleged to have wrongfully failed to diagnose — specifically, the ‘vascular ring.’ ” Accordingly, the trial court was “unable to determine from the record before it whether Dr. Schwartz had made even one *902diagnosis of a ‘vascular ring’ within five years of March 12, 2002,” the date at issue in this case.
As stated earlier, subsection (c) (2) (A) of the statute requires practice “of such area of specialty ... for at least three of the last five years, with sufficient frequency to establish an appropriate level of knowledge, as determined by the judge.”9 In a recent decision, the Supreme Court of Georgia made clear that this language does not require an expert to have knowledge and experience in the same area of practice or specialty as the defendant doctors.10 Instead, the expert must have “knowledge and experience in the practice or specialty that is relevant to the acts or omissions that the plaintiff alleges constitute malpractice.”* 11
To determine “the area of practice or specialty in which the opinion is to be given,” we look to the allegations of plaintiffs complaint and not to the treating physician’s apparent expertise.12 Here, the complaint alleges that the defendant doctors failed to read and act upon CAT scan results, which revealed that Nicholas Spacht, who was two and one-half months old at the time, had a vascular ring. The complaint further alleges that the doctors should have referred Nicholas for surgery to divide the vascular ring, but instead performed an unnecessary tracheotomy, salivary gland excision, and other procedures that could have been avoided if the defendant doctors had recognized and treated the vascular ring. It does not allege that the defendant doctors performed the allegedly unnecessary procedures negligently. Thus, the “area of practice or specialty in which the opinion is to be given” involves the diagnosis of a vascular ring.13
In this case, the trial court specifically found that the “three of the last five years” portion of the requirements set forth in the statute was fulfilled by the statement in Dr. Schwartz’s affidavit that he had “over thirty years of experience in diagnosing and surgically managing children with vascular rings.” The trial court’s ruling that Dr. Schwartz was not competent to testify as a practicing expert, however, was based upon its finding that he did not state in his affidavits the frequency with which he diagnosed the condition. Although the three-year and five-year time lines, established by the legislature, are precise limitations on the trial court’s discretion, we cannot say *903that the trial courts abused its discretion when it found that the “three of the last five years” requirement was satisfied by Dr. Schwartz’s affidavit.14
Additionally, we cannot hold as a matter of law that a trial court abuses its discretion when, after an OCGA§ 24-9-67.1 (d) hearing, it decides that a physician who specializes in one area of medicine lacks the “appropriate level of knowledge” to testify against a physician in a different specialty, albeit a closely related one, based upon a factual finding that the affidavit does not expressly state the frequency with which the affiant has diagnosed the condition that is alleged to have been misdiagnosed.15 Although the affiant here asserts that he frequently “cooperates with” physicians in the sued specialties, is very familiar with vascular rings, and frequently has operated to correct vascular rings over his 30 years of experience, he does not state when during his 30 years of practice he diagnosed the condition. Based on the record here, we cannot conclude that the trial court’s findings that it was unable to determine from the record that Dr. Schwartz had made even one diagnosis of a “vascular ring” within five years of March 12,2002, and consequently, that Dr. Schwartz was not competent to offer an opinion as a practicing expert, constituted an abuse of its discretion. The statute specifically assigns to the trial court the duty to determine whether the expert actively practiced the area of specialty with sufficient frequency to establish an appropriate level of knowledge to render him competent to testify. The trial court did not abuse its discretion in finding here that Dr. Schwartz was not competent to testify as a “practicing expert.”
(b) The trial court also found that Dr. Schwartz was not competent to testify as a “teaching expert.” As the trial court’s order stated, although the affidavit indicated that he was a member of the faculty at two schools, there was no evidence that he
is or was an “employed” member of either faculty, that he was actually teaching at either institution as an employed faculty member, that he had so taught “for at least three of the last five years” relative to the date the alleged failure to diagnose took place, or most importantly, that [while there he] has taught others to “diagnose the condition... which is alleged to have been performed or rendered negligently by *904the defendant whose conduct is at issue,” and “with sufficient frequency to establish an appropriate level of knowledge” to the Court.
(Emphasis in original.) OCGA§ 24-9-67.1 (c) (2) (B) provides that an expert may establish his professional knowledge and expertise based on
[t]he teaching of his or her profession for at least three of the last five years as an employed member of the faculty of an educational institution accredited in the teaching of such profession, with sufficient frequency to establish an appropriate level of knowledge, as determined by the judge, in teaching others how to perform the procedure, diagnose the condition, or render the treatment which is alleged to have been performed or rendered negligently by the defendant whose conduct is at issue.16
The trial court correctly interpreted the statute, concluding that in order to be deemed competent through this subsection of the statute, the witness, to be qualified, must have been an employed member of the faculty of an educational institution and must have taught others, for at least three of the last five years, to diagnose the condition that is alleged to have been performed or rendered negligently by the defendant doctors. In this case, neither the affidavit nor the supplemental affidavit so states. Instead, the supplemental affidavit states that Dr. Schwartz was an “assistant clinical professor” in surgery at one institution since 1974 and a “clinical assistant professor” at another since 1978. There is no mention whatsoever as to whether Dr. Schwartz was employed by an educational institution in 2002 and in the five years prior to that and no mention of his having taught the subject necessary to be deemed an expert within five years of March 12, 2002. Therefore, we cannot find that the trial court abused its discretion when it concluded that Dr. Schwartz could not qualify as a “teaching expert” in this case. Accordingly, we affirm the trial court’s grant of the defendant doctors’ motions to dismiss.
Judgment affirmed.
Andrews, P. J., Blackburn, P. J., Smith, P. J., and Ruffin, J., concur. Johnson, P. J., and Phipps, J., concur in part and dissent in part.