Mr. Jones has seen his new physician twice. What has Mr. Jones established?

In the context of medical office management and patient-physician relationships, when Mr. Jones has seen his new physician twice, he has established a duty. This refers to the obligation that the physician has to provide care to Mr. Jones as a patient. The relationship establishes a legal and ethical responsibility for the physician to act in the best interests of the patient, which is foundational in medical law.

Duty is a critical concept in healthcare as it underpins the trust and responsibility inherent in the patient-care provider relationship. Once the physician agrees to take on Mr. Jones as a patient, a duty of care is established that obligates the physician to adhere to a standard of care that is acceptable in the medical community.

The other concepts mentioned in the options, such as dereliction, direct cause, and damages, are related to issues of negligence or malpractice that might arise if the duty is not fulfilled. However, they do not represent what has been established by Mr. Jones's visits to his physician, which is fundamentally the establishment of a duty of care.