Section 1 Improving the accuracy of geographic adjustment factors
“(D) Use of accurate data
“(i) In general—In establishing indices and index values under this paragraph, the Secretary shall use the most recent data available relating to practice expenses, malpractice expenses, and physician work effort in each fee schedule area.
“(ii) Practice expense and work indices—In establishing indices and index values under clause (i) or (iii) of subparagraph (A), the Secretary shall—
“(I) use the most recent market data available on physician wages, or if available, actual cost data for physician labor; and
“(II) not use nonphysician professional wage data as a proxy for physician wage data.
“(iii) Practice expense calculation—In calculating index values under clause (i) of subparagraph (A), the Secretary shall use the most recent office rent data available or data from Federally qualified health centers (as defined in section 1861(aa)(4)) expense reports.”