The Division of Workers’ Compensation has adopted amendments to the Official Medical Fee Schedule (OMFS) for Physician and Non-Physician Practitioner Services (California Code of Regulations, title 8, section 9789.12.1 through 9789.19.1) to replace the average statewide geographic adjustment factor with local geographic adjustment factors as of January 1.
The locality-specific geographic adjustment factors, known as the Geographic Practice Cost Index (GPCI), was implemented by Medicare in January 2017 as part of its Metropolitan Statistical Area (MSA) program. Geographic Practice Cost Index is used along with Relative Value Units by Medicare to determine allowable payment amounts for medical procedures.
Fee-for-service Medicare payments to physicians and certain other licensed clinical practitioners (including nurse practitioners, physician assistants, clinical nurse specialists, and occupational and physical therapists) are adjusted for geographic differences in market conditions and business costs. These geographic adjustments are intended to ensure that payment to providers reflects the local costs of providing care, so that the Medicare program does not overpay in certain areas and underpay in others.
Each of the three components of the Medicare Physician Fee Schedule (PFS) – physician work, practice expense (PE), and malpractice (MP) insurance – is adjusted for differences across geographic areas in the input prices related to each component. When they are combined, these three components are known as the geographic adjustment factor (GAF).1
The GPCI payment adjustments are made for 89 different geographic areas in the United States, also known as payment areas (or localities). Some are defined according to metropolitan areas, but there are 34 statewide payment areas that include both metropolitan and nonmetropolitan areas.
By federal statute, any changes to the GPCIs that do not explicitly receive additional funding must be budget neutral. In practice, budget neutrality requires that the total amount of payment be unaffected by new adjustments, so that any adjustment upward for one payment area must be paid for by a downward adjustment for other areas. This requirement creates significant tensions among providers in high-versus low-cost areas.
Another major source of disagreement is whether the geographic adjusters should be used as policy levers to help influence provider supply, particularly in nonmetropolitan areas. Some rural health policy experts and practitioners argue that because earning potential influences physicians’ decisions on where to practice, and because many private payers use Medicare prices as a basis for setting their own rates, the geographic adjustments should be used as policy tools to encourage physicians to practice in nonmetropolitan areas.
The DWC says that adoption of the Medicare MSA-based locality GPCIs will improve payment allowance accuracy by reflecting the resources required to provide a service according to specific regions.
The amendments also make minor clarifying revisions to the regulations.
DWC submitted a request to the California Office of Administrative Law to file the amended regulations with the Secretary of State and have them published in the California Code of Regulations. The regulations can be found on the DWC website.