dеlivered the opinion of the Court, in which all Justices join.
The issues in this medical malpractice case are whether an on-call physician, consulted by an emergency room physician over the telephone, formed a physician-patient relationship by expressing his opinion that the patient be transferred to another facility, and if not, whether the physician owed duties outside that relationship. The trial court rendered a take-nothing summary judgment in favor of the physician. The сourt of appeals reversed and remanded the cause to the trial court.
The summary judgment facts reveal that Marty Howard Pоpe came to the emergency room of Central Texas Medical Center in San Marcos (the Center), complaining of back pain and fever. Pope had recently undergone back surgery and epidural injections, and his white blood сell count was extremely high. The emergency room physician, Dr. Virgilio Suarez, examined Pope and initially diagnosed the patient as having lower back pain and acute psychosis. Pope’s wife asked to transfer her husband to Round Rock Hosрital because the couple lived in Austin and the physician who had previously treated Pope practiced at the Round Rock Hospital.
Meanwhile, Suarez telephoned Dr. Holland St. John at home. St. John, a board-certified internist, was on call at the hospital on the evening in question. Suarez recounted to St. John that he had received a patient for evalu *422 ation of fever and back pain who had a history of recent back surgery. Because St. John’s area of speсialization was not neurology or neurosurgery, and the Center was not able to handle cases involving these specialties, St. John recommended that Pope be referred to a hospital with the requisite neurosurgeon or to the physician who had performed the surgery. Suarez agreed, and indicated that he would arrange the transfer.
Suarez called Pope’s doctor, but for reasons not clear in the record, the Round Rock Hospital’s emergency room refused to acсept the transfer. Not wishing to hospitalize her husband in San Marcos, Mrs. Pope took her husband home against the advice of the staff at the Center. The following day, an ambulance transported Pope to an Austin hospital. There a lumbar puncturе revealed that he was suffering from meningitis. Pope developed several permanent disabilities from the disease.
The Popes sued the Center and the Round Rock Hospital, two Round Rock physicians, Suarez, and St. John. Their petition alleged generally that the defendants failed to exercise professional care and were negligent. The petition did not set out the particular circumstances giving rise to liability for any of the defendants.
The Popes’ sole allegation concerning St. John’s liability, stated in Plaintiffs’ Second Amended Original Petition, was that:
6. On July 3, 1990, Defendants CENTRAL TEXAS MEDICAL CENTER, INC., CENTRAL TEXAS MEDICAL CENTER, ROUND ROCK INDEPENDENT ASSOCIATION, INC., and ROUND ROCK HOSPITAL, through their agents, servants, and/or employees, and STEVEN WILSON, M.D., VIRGILIO SUAREZ, M.D., and HOLLAND ST. JOHN, M.D. jointly and severally violated the duty owed to Plaintiffs to exercise the ordinary care and diligence exercised by physicians and/or health facilities in the same or similar circumstances and were each negligent in their treatment of MARTY HOWARD POPE.
St. John moved for summary judgment on the ground that no physician-patient relationship existed between him and the Popes, and therefore he owed no duty of care. He supported his motion with his own affidavit and medical records from the Center.
The Popes opposed the motion with an affidavit from a board-certified internist, Dr. Robert Levine, and an affidavit which St. John had filed еarlier in the case. In that affidavit, St. John testified that he met the standard of care of an on-call internist. The Popes contended that by testifying as to the standard of care of an on-call physician, St. John’s prior affidavit was some evidencе that he had a duty of care. They also contended that their consent to treatment by Suarez at the Center also implied consent to be treated by on-call physicians, therefore giving rise to a doctor-patient relationship with St. John. They alleged that St. John was negligent in assuming Pope suffered from a neurosurgical problem without personally examining the patient, and that other medical personnel relied on his negligently formed opinion.
Levine stated in his affidavit that any certified internist should have recognized the possibility of an “infectious process, given a history of fever following an invasive procedure.” Levine further stated that in light of the information he received over the telephone, St. John should have seen Pope personally and performed a lumbar puncture, which would have permitted a correct diagnosis, and that such a procedure was “clearly within the domain” of an internist. According to expert medical testimony, the prognosis for meningitis depends on how fast it is diagnosed and treated.
The trial court granted St. John’s motion expressly on the ground that he owed no duty because there was no physician-patient relationship. The trial court severed the Popes’ cause of action against St. John from their case against the remaining defendants.
On appeal, the court of appeals held:
... Irrespective of any contract relationship between St. John and Pope, the law imposed upon St. John a duty to act with ordinary care toward Pope if the circumstanсes were such that a reasonably prudent person in St. John’s position would recognize that his acts, unless done with ordinary care, would place Pope in danger.
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By undertaking affirmatively to identify Pope’s ailment based on the information supplied by Suarez, St. John assumed a legal duty to act with ordinary care in arriving at his identification and his consequent determination of whether he was qualified to treat the ailment.
In short, the court of appeals held that lack of a physician-patient relatiоnship between Pope and St. John would not entitle the doctor to summary judgment. Rather, the court concluded that St. John’s duties are defined under the rules of ordinary negligence — what a reasonably prudent person would do under the same or similar cirсumstances.
Medical malpractice developed as a theory of liability discrete from common-law negligence, imbued with both contract and tort principles.
See
1 Louisell & Williams, Medical Malpractice § 8.01, at 8-2, 8-18 to 8-19 (1990) (noting that medical malpractice developed under the theory of “public calling” prior to the time negligence emerged as a separate tort). The standard of care demanded in medical malpractice cases requires skills not ordinarily possessed by lay persons.
Id.
at 8-3;
see Hood v. Phillips,
The court in
Salas
reasoned that, because a physician has the right to reject employment, the reason a physician declines to treat a patient is immaterial to the issue of medical malpractice.
*424 Creation of the physician-patient relationship does not require the formalities of a contract. The fact that a physician does not deal directly with a patient does not necessarily preclude the existence of a physician-patient relationship.
Applying thesе principles to the present ease, we hold the summary judgment proof conclusively established that St. John had no physician-patient relationship with Pope. At no time did St. John agree to examine or treat Pope. Although St. John listened to Suarez’s description of Pope’s symptoms, and came to a conclusion about the basis of Pope’s condition, he did so for the purpose of evaluating whether he should take the case, not as a diagnosis for a course of treatment.
The court of appeals held that St. John’s affidavit suggested that he had “an implied contract” and “that St. John would take the actions he believes he was
obliged
to take and did in fact take.”
We do not dispute that a physician may agree in advance to the creation of a physiсian-patient relationship. For example, a physician’s agreement with a hospital may leave the physician no discretion to decline treatment of the hospital’s clients.
Compare Hand v. Tavera,
We conclude that St. John established as a matter оf law the lack of a physician-patient relationship. Absent such a relationship, he owed no duty to Pope. The trial court’s summary judgment was proper, and the court of appeals erred in setting it aside. Accordingly, we reverse the judgment of the court of appeals, and render judgment that Pope take nothing from St. John.
