Medicare reimbursement policy for physicians is entering an important transition period as the Centers for Medicare & Medicaid Services (CMS) moves toward finalizing the 2027 Medicare Physician Fee Schedule. CMS released the proposed rule on July 14, 2026, outlining payment and policy changes that would apply beginning January 1, 2027. The proposal covers physician payment rates as well as other Medicare Part B policies affecting clinicians and medical practices.
For California physicians, the proposed changes are relevant to financial forecasting, staffing decisions, service-line planning, and broader practice management. The Physician Fee Schedule determines payment for a wide range of professional services, with rates calculated using relative value units, geographic practice cost indices, and a conversion factor. Because practice costs vary geographically, the final impact can differ between specialties and locations even when physicians provide the same services.
CMS Proposes New 2027 Payment Factors
One of the central elements of the proposed rule is the Medicare reimbursement conversion factor. Beginning in 2026, federal law established separate conversion factors for qualifying Advanced Alternative Payment Model participants and other physicians and practitioners.
For 2027, CMS proposed a qualifying APM conversion factor of $33.17, compared with the current $33.57 factor, representing a projected decrease of approximately 1.19%. For non-qualifying APM participants, CMS proposed a conversion factor of $32.84, compared with the current $33.40, representing a projected decrease of approximately 1.68%.
These figures are important for Medicare reimbursement planning, but they should not be interpreted as a uniform percentage change for every physician service. Individual payment amounts depend on the applicable RVUs, geographic adjustments, and other elements of the fee schedule. Changes to the valuation of individual services can also affect how the overall payment update translates into actual practice revenue.
Why the 2027 Proposal Matters to California Physicians
The proposed Medicare reimbursement framework matters particularly for physician practices managing rising labor, technology, malpractice, facility, and administrative expenses. Medicare payments are one component of a practice’s revenue mix, but changes to federal payment policy can influence broader financial planning.
California practices may also experience different effects depending on specialty and geographic location. CMS uses geographic practice cost indices to account for differences in the cost of providing medical services. The Physician Fee Schedule also distinguishes between professional services provided in physician offices and services delivered in facility settings, where payment calculations account for different resource structures.
For practice administrators and physician leaders, this makes the final 2027 fee schedule more relevant than simply looking at the headline conversion-factor percentage. Specialty-specific impacts, code-level valuation changes, geographic adjustments, and participation in qualifying payment models can all influence actual Medicare revenue.
Payment Policy Extends Beyond the Conversion Factor
The 2027 proposal is broader than a discussion of Medicare reimbursement rates. CMS also proposed changes involving evaluation and management services, remote monitoring, the Medicare Shared Savings Program, and the Quality Payment Program.
CMS has also proposed changes intended to modify how clinicians participate in accountable care arrangements and value-based payment models. The agency described the broader proposal as part of an effort to modernize physician payment, improve Medicare reimbursement, and strengthen value-based care.
These policies can matter to California physician groups that participate in accountable care organizations or other alternative payment arrangements. Changes in payment methodology may influence how practices evaluate participation, quality reporting responsibilities, care-management investments, Medicare reimbursement, and financial risk.
Practices Should Review the Proposed Payment Effects
The proposed Medicare reimbursement changes provide physician practices with an opportunity to examine their Medicare revenue assumptions before the 2027 payment year begins. Practices can review their current Medicare service mix, identify high-volume procedure and evaluation codes, and assess how proposed valuation changes could affect projected revenue.
This type of review is particularly relevant for practices with substantial Medicare patient populations. A relatively modest change to an individual service can have a meaningful cumulative effect when that service is performed frequently. Conversely, increases or reductions affecting lower-volume services may have a smaller overall financial effect even when the percentage change appears significant.
Physician organizations should therefore avoid relying exclusively on the proposed conversion factor when preparing 2027 budgets. A more detailed analysis of service utilization and proposed RVU changes can provide a clearer picture of potential financial effects.
The 2027 Fee Schedule Is Not Yet Final
The CMS proposal remains subject to the federal rulemaking process. CMS published the proposed rule in July, and the formal comment period closed on September 14, 2026. The agency will consider submitted comments before issuing the final 2027 Physician Fee Schedule.
This distinction is important for California physicians making financial projections in September. The proposed conversion factors and other provisions provide a basis for planning, but they should not be treated as the final Medicare reimbursement amounts that will apply on January 1, 2027.
CMS maintains the Physician Fee Schedule rulemaking materials and supporting files, including proposed payment information, specialty impact materials, RVU files, and other technical documents. These resources can help practices evaluate the proposed changes at the service and specialty level rather than relying only on the headline payment figures.
Preparing for Medicare Reimbursement Changes
For California physicians, the 2027 Medicare reimbursement discussion is ultimately about how federal payment policy intersects with the economics of medical practice. Practices must consider reimbursement alongside staffing expenses, technology investments, regulatory requirements, patient volume, and the changing mix of Medicare and commercial patients.
Physician leaders should continue monitoring the final rule and compare it with their current Medicare revenue assumptions. Practices that perform detailed financial modeling can identify which services and specialties are most exposed to changes before the new payment year begins.
The final 2027 Physician Fee Schedule will determine the payment framework that takes effect January 1, 2027. Until then, the proposed rule gives California physicians an early view of the direction of Medicare reimbursement policy and provides practices with time to evaluate potential financial and operational consequences.
For the proposed payment factors, RVU materials, specialty impact information, and other official details, visit the CMS 2027 Medicare Physician Fee Schedule Proposed Rule.
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