Hospitals report these codes with terse, inconsistent chargemaster text. This plain-English title was written by an AI model from that text and has not been reviewed by a person, so it can be wrong. The prices on this page come straight from hospital filings and do not depend on it.
Original text from hospital filings
NIACIN LEVEL
Chesterfield, MO
See all hospitals reporting CPT 84591 →Price type
Mercy Rehabilitation Hospital St. Louis’s median price of $288 is 989% above the median hospital's median price ($26), higher than 98% of the 2,247 hospitals reporting CPT 84591. The highlighted bar is where this hospital falls; shaded is the middle 50% of hospitals.
Last updated: Mar 16, 2026
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