Cut the gordian knot: rewrite the sentence: The good doctor treats patients with compassion or treats patients compassionately.
The pronoun does not agree with its antecedent in number.
Treats his patients.
A psychiatrist treats patients with schizophrenia.
A general practitioner is the type of doctor that treats the largest range of ailments. A general practitioner treats all ages of patients from birth to the very aged.
Commonly it is the neurologist who is concerned with patients who have had strokes (CVA)
A doctor with specialty training in epilepsy is a neurologist/epileptologist.
An internist is a doctor who treats medical problems inside the body without operating on patients.
The pronoun 'them' replaces the noun 'treats'. 'Treats' is the antecedent.
A Doctor Who treats children is called a paediatrician
An oncologist is a doctor who treats patients with cancer. An oncologist works in hospitals, specialty hospitals or their own medical office.
An Audiologist is a medical doctor who treats conditions and diagnoses diseases of the ear. Audiologists help patients suffering from hearing loss by prescribing medication or a hearing device.
Most any doctor can treat a terminally ill patient. It can be your family doctor or a specialist for whatever disease is causing the problem, like an oncologist for a dying cancer patient. Also alot of hospices have their own doctor who is their medical director.