Miller was physician and proprietor of the New Hygienic Institution and Turkish Bath in New York City.

[4] Miller was a Christian who held the view that suffering was the result of sin and disease could be caused by eating the wrong foods.

He recommended that his clients abstain from coffee, strong milk, pickles, spices and tea.

[1] Miller was a phrenologist and contributed articles to The Phrenological Journal and Science of Health.

In 1860, Miller spoke at the Eleventh Annual Meeting of the American Vegetarian Society.