Guide

The conversion factor: one number that moves every rate

Summary

The conversion factor is the single dollar multiplier Medicare applies to every code's relative value units, so when it changes in the annual Physician Fee Schedule final rule, every service you bill moves roughly in proportion. A solo practice feels it as a near-uniform percentage shift across its whole Medicare book. To estimate the hit, apply the change to your highest-volume codes rather than the whole schedule.

By Gale Editorial · Updated 2026-07-26. Every figure cited to a dated source. How we write.

What the conversion factor is

The Medicare conversion factor is a single dollar amount that converts a code's relative value units into a payment. Every service on the Physician Fee Schedule carries relative value units for the work, the practice expense, and the malpractice cost it involves; the conversion factor is what turns those units into actual dollars. CMS sets it each year through the Physician Fee Schedule rulemaking, and because it is one multiplier applied across the entire schedule, it is the most consequential single number in Medicare payment 1Ref 1Centers for Medicare & Medicaid Services (2026).Physician Fee Schedule.That the Medicare Physician Fee Schedule sets clinician payment through relative value units and a conversion factor, is updated annually through rulemaking, and that the current-year rule is where the operative conversion factor lives.. As of July 2026, the operative figure is the one published in the current year's final rule.

Why one number moves every rate

Medicare pays a code by adding up its relative value units — work, practice expense, and malpractice — after adjusting each for your geographic locality, and then multiplying the total by the conversion factor 1Ref 1Centers for Medicare & Medicaid Services (2026).Physician Fee Schedule.That the Medicare Physician Fee Schedule sets clinician payment through relative value units and a conversion factor, is updated annually through rulemaking, and that the current-year rule is where the operative conversion factor lives.. That structure is why a change to the conversion factor alone touches every code proportionally: if the multiplier falls, the dollar value of every RVU falls with it, and a code worth a certain amount this year is worth a predictable fraction of that next year. Nothing about your coding or your patients has to change for your Medicare payments to move; the multiplier did the work on its own.

How a conversion-factor change reaches your revenue

A pure conversion-factor change lands as a near-uniform percentage across your Medicare book, but real final rules rarely stop there. In the same annual rule, CMS often revalues the relative value units on specific code families, so a service you bill heavily can move more or less than the headline conversion-factor change suggests 1Ref 1Centers for Medicare & Medicaid Services (2026).Physician Fee Schedule.That the Medicare Physician Fee Schedule sets clinician payment through relative value units and a conversion factor, is updated annually through rulemaking, and that the current-year rule is where the operative conversion factor lives.. The practical consequence for a solo practice is that the announced percentage is a starting estimate, not your actual number. Two clinicians with the same Medicare volume can feel the same rule differently, depending on which codes dominate their day.

Modeling the hit for your practice

You do not need to reprice the whole schedule to estimate the impact — you need your top codes. Pull the ten or fifteen CPT and HCPCS codes that make up most of your Medicare volume, look each one up in the CMS Physician Fee Schedule search tool to get the current national or locality amount, and compare it to the new year's amount once the rule is out 2Ref 2Centers for Medicare & Medicaid Services (2026).Physician Fee Schedule Search.That CMS publishes a public fee-schedule search where a clinician can look up the national and locality payment amount, RVUs, and payment indicators for any CPT or HCPCS code — the tool for modeling a rate change on specific codes.. Weighting each code by how often you bill it turns an abstract percentage into a dollar figure for your practice. This is the same caseload math that drives the rest of your revenue planning, applied to one variable.

Where the current-year number lives

The conversion factor is not a fixed constant you can memorize; it is reset annually and can move up or down. The authoritative source is the Physician Fee Schedule final rule for the year in question, which CMS publishes along with the fee schedule itself 1Ref 1Centers for Medicare & Medicaid Services (2026).Physician Fee Schedule.That the Medicare Physician Fee Schedule sets clinician payment through relative value units and a conversion factor, is updated annually through rulemaking, and that the current-year rule is where the operative conversion factor lives.. Because the figure is volatile and changes with each rulemaking cycle, any article that quotes a specific dollar amount goes stale within a year — so the durable skill is knowing where to read the current one rather than remembering last year's. As of July 2026, that means the most recent final rule and the fee-schedule search tool 2Ref 2Centers for Medicare & Medicaid Services (2026).Physician Fee Schedule Search.That CMS publishes a public fee-schedule search where a clinician can look up the national and locality payment amount, RVUs, and payment indicators for any CPT or HCPCS code — the tool for modeling a rate change on specific codes..

What else moves your realized Medicare revenue

The conversion factor is the biggest lever, but not the only one, and modeling only it will mislead you. Your realized Medicare revenue also reflects your participation status, any separate across-the-board payment adjustments in effect, and — if you are subject to it — your MIPS score, which adjusts Part B payment up or down based on your quality reporting 3Ref 3Centers for Medicare & Medicaid Services (2026).MIPS Overview.That MIPS adjusts a clinician's Medicare Part B payment up or down based on quality, cost, improvement activities, and interoperability — a separate factor layered on top of the fee schedule that affects realized revenue.. Value-based arrangements can change the picture further; even acos for a practice of one shift how some of your Medicare dollars flow. The conversion factor tells you how the schedule moved; these other factors tell you how much of it you actually keep.

Common questions

It is a single dollar amount Medicare multiplies against a code's relative value units to produce the payment for that service. Because the same multiplier applies to the entire Physician Fee Schedule, it is the number that moves nearly every Medicare rate at once. CMS resets it each year through the fee-schedule rulemaking, so it is not a fixed figure.

Roughly in proportion across your Medicare book, but the headline percentage is only a starting estimate. Because CMS also revalues specific code families in the same rule, your actual impact depends on which codes you bill most. Weighting the change against your ten or fifteen highest-volume codes gives a far more accurate figure than applying it to the whole schedule.

In the Physician Fee Schedule final rule for the current year, which CMS publishes with the fee schedule, and reflected in the CMS fee-schedule search tool. The figure changes with each annual rulemaking cycle, so the reliable habit is to read the current rule rather than rely on a number quoted in an older article or last year's planning.

Not automatically. Many commercial contracts reference the Medicare fee schedule as a benchmark, but each payer sets its own rates and update timing, and some are fixed dollar amounts unrelated to Medicare. Your contract controls. If a commercial rate is tied to Medicare, the contract will say how and when it follows a schedule change, so check the language rather than assume.

Yes. The conversion factor is a single national figure. The reason payments differ by location is the geographic practice cost adjustment applied to each code's relative value units, not the conversion factor itself. So two practices in different regions share the same conversion factor but can still be paid different amounts for the identical code.

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References

1.Centers for Medicare & Medicaid Services (2026). Physician Fee Schedule. Centers for Medicare & Medicaid Services (CMS). link ✓That the Medicare Physician Fee Schedule sets clinician payment through relative value units and a conversion factor, is updated annually through rulemaking, and that the current-year rule is where the operative conversion factor lives.
2.Centers for Medicare & Medicaid Services (2026). Physician Fee Schedule Search. Centers for Medicare & Medicaid Services (CMS). link ✓That CMS publishes a public fee-schedule search where a clinician can look up the national and locality payment amount, RVUs, and payment indicators for any CPT or HCPCS code — the tool for modeling a rate change on specific codes.
3.Centers for Medicare & Medicaid Services (2026). MIPS Overview. CMS Quality Payment Program. link ✓That MIPS adjusts a clinician's Medicare Part B payment up or down based on quality, cost, improvement activities, and interoperability — a separate factor layered on top of the fee schedule that affects realized revenue.

https://www.gale.care/for-providers/mc-conversion-factor-updates · 3 sources. Competitor details are cited to dated public sources and maintained as they change; figures are estimates, not commitments. Synthetic demonstration.

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