Tex. Civil Practice and Remedies Code § 74.402 — TX Code / Code cp / Chapter 74 / Section 74.402
§ 74.402. QUALIFICATIONS OF EXPERT WITNESS IN SUIT AGAINST HEALTH CARE PROVIDER.
Status: in_force

(a) For purposes of this section, "practicing health care" includes:

(1) training health care providers in the same field as the defendant health care provider at an accredited educational institution; or

(2) serving as a consulting health care provider and being licensed, certified, or registered in the same field as the defendant health care provider.

(b) In a suit involving a health care liability claim against a health care provider, a person may qualify as an expert witness on the issue of whether the health care provider departed from accepted standards of care only if the person:

(1) is practicing health care in a field of practice that involves the same type of care or treatment as that delivered by the defendant health care provider, if the defendant health care provider is an individual, at the time the testimony is given or was practicing that type of health care at the time the claim arose;

(2) has knowledge of accepted standards of care for health care providers for the diagnosis, care, or treatment of the illness, injury, or condition involved in the claim; and

(3) is qualified on the basis of training or experience to offer an expert opinion regarding those accepted standards of health care.

(c) In determining whether a witness is qualified on the basis of training or experience, the court shall consider whether, at the time the claim arose or at the time the testimony is given, the witness:

(1) is certified by a licensing agency of one or more states of the United States or a national professional certifying agency, or has other substantial training or experience, in the area of health care relevant to the claim; and

(2) is actively practicing health care in rendering health care services relevant to the claim.

(d) The court shall apply the criteria specified in Subsections (a), (b), and (c) in determining whether an expert is qualified to offer expert testimony on the issue of whether the defendant health care provider departed from accepted standards of health care but may depart from those criteria if, under the circumstances, the court determines that there is good reason to admit the expert's testimony. The court shall state on the record the reason for admitting the testimony if the court departs from the criteria.

(e) This section does not prevent a health care provider who is a defendant, or an employee of the defendant health care provider, from qualifying as an expert.

(f) A pretrial objection to the qualifications of a witness under this section must be made not later than the later of the 21st day after the date the objecting party receives a copy of the witness's curriculum vitae or the 21st day after the date of the witness's deposition. If circumstances arise after the date on which the objection must be made that could not have been reasonably anticipated by a party before that date and that the party believes in good faith provide a basis for an objection to a witness's qualifications, and if an objection was not made previously, this subsection does not prevent the party from making an objection as soon as practicable under the circumstances. The court shall conduct a hearing to determine whether the witness is qualified as soon as practicable after the filing of an objection and, if possible, before trial. If the objecting party is unable to object in time for the hearing to be conducted before the trial, the hearing shall be conducted outside the presence of the jury. This subsection does not prevent a party from examining or cross-examining a witness at trial about the witness's qualifications.