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 immunologist or a pediatric immunologist typically treats patients with Chronic Granulomatous Disease. This specialized doctor has training in disorders of the immune system and can provide comprehensive care for individuals with this condition.
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.
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.