Credentialing Glossary
GPCI
medical-codingDefinition
Geographic Practice Cost Index. Three multipliers (work, practice expense, malpractice) Medicare applies to RVUs to adjust payment for cost-of-living differences across 109 MAC localities. Manhattan and San Francisco have GPCIs above 1.0; rural Wyoming below. Example: CPT 99213 pays $87.79 in some rural areas and $120.13 in high-cost metro localities for the same code, same date.