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
HC Total Tau Protein Testin
Greenwood, SC
See all hospitals reporting CPT 84394 →Price type
Self Regional Healthcare’s median price of $516 is 272% above the median hospital's median price ($139), higher than 91% of the 1,451 hospitals reporting CPT 84394. The highlighted bar is where this hospital falls; shaded is the middle 50% of hospitals.
Last updated: Mar 30, 2026
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