Charleston, SC (Locality 11202-01)
5.7% below the national baseline ($378.43)
Charleston, SC (Locality 11202-01)
3.3% below the national baseline ($165.00)
CMS evidence · Q4 2026 release
( Work3.18 × 1.000 + Practice exp.7.73 × 0.924 + Malpractice0.42 × 0.850 ) × Conv. factor$33.4009 = $356.71
F Work RVU
3.18
G Non‑facility PE RVU
7.73
K MP RVU
0.42
Z Conversion factor
33.4009
E Work GPCI
1.000
F PE GPCI
0.924
G MP GPCI
0.850
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Physician relative value file (PPRRVU) · PPRRVU2026_Oct_nonQPP.csv row 15,093 in rvu26d-updated-08-26-2026.zip Download from CMS
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Geographic practice cost indices (GPCI) · GPCI2026.csv row 93 in rvu26d-updated-08-26-2026.zip Download from CMS
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CMS RVU26DOctober 1 – December 31, 2026revision 2
CMS evidence · Q4 2026 release
( Work3.18 × 1.000 + Practice exp.1.34 × 0.924 + Malpractice0.42 × 0.850 ) × Conv. factor$33.4009 = $159.49
F Work RVU
3.18
I Facility PE RVU
1.34
K MP RVU
0.42
Z Conversion factor
33.4009
E Work GPCI
1.000
F PE GPCI
0.924
G MP GPCI
0.850
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Physician relative value file (PPRRVU) · PPRRVU2026_Oct_nonQPP.csv row 15,093 in rvu26d-updated-08-26-2026.zip Download from CMS
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Geographic practice cost indices (GPCI) · GPCI2026.csv row 93 in rvu26d-updated-08-26-2026.zip Download from CMS
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CMS RVU26DOctober 1 – December 31, 2026revision 2
Participating provider, no modifiers, whole service, before sequestration. Change these
Report a problemThe Medicare allowed amount is $356.71 in the Office (non-facility) setting and $159.49 in a facility, under the Q4 2026 Physician Fee Schedule. This is the fee schedule amount before sequestration and before any deductible or coinsurance is applied—not necessarily what a specific claim pays.
What Medicare locality is Charleston, SC in? Copy link
CMS prices all of South Carolina as one Medicare payment locality, so this amount applies statewide, including Columbia, Greenville and Myrtle Beach—not only in Charleston, SC.
Confirm the locality before using this amount. A split ZIP needs ZIP+4 for an exact match.
ZIP codes in this payment locality (544)
The CMS ZIP-to-locality crosswalk maps 544 ZIP codes to this payment locality. Use this amount only after you confirm the service location is in this locality.
444 more ZIP codes map to this locality. The Charleston, SC locality page lists the full set.
Which ZIP codes does the Charleston, SC rate for G0121 cover?
The CMS ZIP-to-locality crosswalk maps 544 ZIP codes to this payment locality, and G0121 has the same amount in every one of them. Examples include 29001, 29002, 29003, 29006, 29009, 29010.
Does this G0121 rate apply everywhere in South Carolina?
Yes. CMS prices South Carolina as a single Medicare payment locality, so the same GPCIs—and the same allowed amount—apply statewide, not only in Charleston, SC. That includes Columbia, Greenville and Myrtle Beach. The city name here is a search-facing label for a statewide payment locality, not a city-specific rate.
How the Charleston, SC amount is calculated Copy link
How locality affects the amount Copy link
Office (non-facility) · Q4 2026 · Participating · Whole service
Charleston, SC's $356.71 compares with the $378.43 national PFS baseline (GPCI 1.000). Each of this locality's geographic practice cost indices (GPCIs) scales one RVU component before the conversion factor is applied. Together they put Charleston, SC 5.7% below the national baseline.
Charleston, SC ranks #89 of 109 Medicare payment localities for G0121, where #1 has the highest allowed amount.
Each figure is that GPCI's share of the −$21.72 gap from the national baseline: its RVUs for G0121 × (GPCI − 1.000) × the conversion factor. Practice expense accounts for the most, −$19.62.
CMS RVU26DOctober 1 – December 31, 2026revision 2 See file rows
Show the full calculation and CMS rows
For the office (non-facility) amount, each of G0121's RVU components is multiplied by its Charleston, SC GPCI; the products are summed and multiplied by the conversion factor.
- Code
- G0121
- DOS
- Not selected; uses this release’s rates
- Locality
- South Carolina (11202-01)
- Setting
- Office (non-facility)
- Participation
- Participating provider
- Modifiers
- None
- Units
- 1
- Release
- Q4 2026, revision 2
- Sequestration
- Shown separately from the allowed amount
Formula
(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor
Localis calculated this from CMS’s published inputs. Select an underlined value to see where it comes from.
| Component | RVU | × GPCI | = Adjusted |
|---|---|---|---|
| Work | 3.18 | × 1.000 | 3.1800 |
| Practice expense · Office (non-facility) | 7.73 | × 0.924 | 7.1425 |
| Malpractice | 0.42 | × 0.850 | 0.3570 |
| Sum of adjusted RVUs | 10.6795 | ||
| × 33.4009 conversion factor = formula amount | $356.71 | ||
Component subtotals show four decimals. The formula amount is rounded to cents before any later adjustment.
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Locality-adjusted allowed amount $356.71
After applicable fee-schedule adjustments; sequestration excluded
Citations
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G0121’s RVUs, PFS status and conversion factor
Physician relative value file (PPRRVU)CMS RVU26DOctober 1 – December 31, 2026revision 2
PPRRVU2026_Oct_nonQPP.csv row 15,093 in rvu26d-updated-08-26-2026.zip
- A HCPCS
- G0121
- B Modifier
- blank
- D Status code
- A
- F Work RVU
- 3.18
- G Non-facility PE RVU
- 7.73
- K MP RVU
- 0.42
- Z Conversion factor
- 33.4009
In the CMS file
Loading rows 15,091–15,095 of PPRRVU2026_Oct_nonQPP.csv…
Download rvu26d-updated-08-26-2026.zip from CMS File fingerprint
4d0d3f19bd954ffc0f5b8439169d267da023d4f6911f4539bb6e98723cb1a626 -
Locality 11202-01’s GPCIs
Geographic practice cost indices (GPCI)CMS RVU26DOctober 1 – December 31, 2026revision 2
GPCI2026.csv row 93 in rvu26d-updated-08-26-2026.zip
- A MAC
- 11202
- C Locality number
- 01
- E Work GPCI
- 1.000
- F PE GPCI
- 0.924
- G MP GPCI
- 0.850
In the CMS file
Loading rows 91–95 of GPCI2026.csv…
Download rvu26d-updated-08-26-2026.zip from CMS File fingerprint
7850e2987d12e46930e49033f96829b5ae11f60dd1f19965329b38cf08b05264
Why is the G0121 rate in Charleston, SC different from the national amount?
The national figure is a GPCI 1.000 baseline, not an amount any provider is paid. This locality's geographic practice cost indices—work 1.000, practice expense 0.924, malpractice 0.850—scale each RVU component before the conversion factor is applied, which is why the Charleston, SC amount is lower than the $378.43 baseline.
G0121 in Charleston, SC since Q4 2025 Copy link
Office (non-facility) · Participating · Whole service
The allowed amount went from $307.27 in Q4 2025 to $356.71 in Q4 2026, +$49.44 (+16.1%). The national baseline moved +15.4% over the same period.
| What moved | Effect |
|---|---|
| Conversion factor National: the dollar multiplier CMS sets each year. | +$10.02 |
| G0121's RVUs National: CMS revalued the code itself. | +$36.12 |
| Charleston, SC's GPCIs Local: this payment locality's cost indices. | +$3.30 |
| Total change | +$49.44 |
A derived breakdown of the two releases' formula inputs, applied in order: the conversion factor on Q4 2025's RVUs and GPCIs, then G0121's new RVUs, then this locality's new GPCIs. A different order moves a few cents between rows; the total is exact.
Which amount applies to your claim? Copy link
Facility vs. Office (non-facility) Copy link
In a facility (hospital outpatient department or ASC), the allowed amount for G0121 in Charleston, SC is $159.49, versus $356.71 in the Office (non-facility) setting. Only the practice-expense RVU changes with the setting: the facility bills its own fee for overhead, so the professional amount is lower. See which setting applies to your place of service.
What is the Facility amount for G0121 in Charleston, SC?
$159.49 in a facility, versus $356.71 in the Office (non-facility) setting—a $197.22 difference. Only the practice-expense RVU changes with the setting: in the Office (non-facility) setting the practice carries the overhead, so the professional amount is higher; in a hospital or ASC the facility bills its own fee.
Who pays what Copy link
Medicare pays part of the Charleston, SC allowed amount and the patient pays the rest. A provider who doesn’t participate in Medicare is allowed less, and can bill the patient up to a ceiling.
Computed from the Q4 2026 CMS release
- Allowed amount
- $356.71
- Medicare's share
- $285.37
- Sequestration
- -$5.71
- What Medicare pays
- $279.66
- Patient coinsurance
- $71.34
- Non-participating amount
- $338.87
- Limiting charge
- $389.70
The fee-schedule amount for G0121 in the Office (non-facility) setting in Charleston, SC. A participating provider accepts it as payment in full, and every figure below starts from it.
80% of the allowed amount, once the annual Part B deductible is met.
The 2% cut to Medicare’s share. It never reduces the allowed amount or the patient’s coinsurance.
Medicare’s share after sequestration.
The remaining 20%. Medigap or Medicaid often covers it.
What a provider who doesn’t participate in Medicare is allowed on an assigned claim: 95% of the allowed amount.
The most a non-participating provider can bill the patient on an unassigned claim: 115% of the non-participating amount.
What is the non-participating amount and limiting charge for G0121 in Charleston, SC?
A non-participating provider is paid $338.87—95% of the $356.71 participating fee schedule amount. On an unassigned claim the limiting charge caps what the patient can be billed at $389.70, which is 115% of the non-participating amount.
How much of the Charleston, SC G0121 rate does Medicare actually pay?
Medicare pays 80% of the allowed amount ($285.37) once the annual Part B deductible is met, and the beneficiary owes 20% ($71.34). Sequestration reduces Medicare's share by about 2% ($5.71), leaving $279.66. Sequestration never changes the allowed amount itself, which is why it is shown separately here.
Who’s billing it in Charleston, SC Copy link
The allowed amount depends on who bills the service: NPs and PAs get 85% of the fee schedule amount, social workers and counselors 75%. These are Charleston, SC’s Q4 2026 amounts.
| Billed by | Office (non-facility) | Facility |
|---|---|---|
| Physician (MD/DO) 100% The full fee schedule amount. Open in calculator | $356.71 | $159.49 |
| Physician assisting at surgery (-80, -81, -82) Medicare doesn’t pay for an assistant at surgery on this code. Source: Pub. 100-04 ch. 12 §20.4.3 Open in calculator | Not payable | Not payable |
A provider type is listed when it billed at least 1% of G0121’s Medicare services in CMS’s CY2024 Physician & Other Practitioners data. Each percentage applies before the 80/20 split and sequestration.
Contract rates and comparisons Copy link
Contracted rate: % of Medicare in Charleston, SC Copy link
Commercial contracts are often written as a percentage of the Medicare fee schedule. The part that gets misread is which Medicare amount: a contract benchmarked to the fee schedule prices off this locality's allowed amount—$356.71 in the office (non-facility) setting—not the $378.43 national baseline.
Opens the calculator set to Charleston, SC and your selected setting, where you can also compare what a payer paid against the expected amount. See how to find your contract's actual percentage.
G0121 in nearby payment localities Copy link
Payment localities in the same region as Charleston, SC, nearest first. Each amount is that locality's own GPCI-adjusted Office (non-facility) figure for G0121. Neighboring localities often differ.
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Charleston, SC · this page $356.71
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Charlotte, NC $356.07 -0.2%
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Atlanta, GA $385.70 +8.1%
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Richmond, VA $369.92 +3.7%
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Tampa, FL $374.13 +4.9%
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Birmingham, AL $340.07 -4.7%
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Nashville, TN $348.44 -2.3%
Percentages are against Charleston, SC. Every payment locality nationwide is on the HCPCS G0121 rate map.
Source & method Copy link
Computed from the CMS Medicare Physician Fee Schedule Q4 2026 release: this code's RVUs from the relative value file, multiplied by payment locality 11202-01's GPCIs, then by the 2026 conversion factor of $33.4009. ZIP coverage from the CMS ZIP-to-locality crosswalk, Q4 2026 release. Past releases are never edited, so an amount for an earlier quarter always matches what CMS published for it. Coverage and coding correctness are outside this calculation.
Working a claim with an earlier date of service? The calculator prices G0121 in Charleston, SC against the release in effect on that date. Dates of service this quarter don't need an account; earlier dates need a free account.
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