A vocal specialist is called a Speech Therapist
Laryngitis is the term meaning inflammation of the vocal cords.
A skin specialist is a "dermatologist".
Dystonia
A neonatologist is a specialist in the care of newborns.
A neonatologist is a specialist in the care of the newborn.
A gerontologist is a specialist in the treatment of the elderly.
Myologist is the term meaning specialist in the study of muscles, but an orthopedist is the typical specialist physician who treats muscle problems.
neurologist
A cardiologist.
An Obstetrician or midwife.
Orthopedist
Psychiatrist