CPT code 99151: Moderate sedation, same proceduralist, under five2026 Medicare rate & RVUs in Barrington, Illinois
CPT 99151: $63.76–$64.22 office ($22.02–$22.47 facility) across 2 localities in Barrington, IL in 2026 Medicare. Compare each area.
Medicare pays $63.76–$64.22 for 99151 in the office in Barrington, Illinois, from Chicago, IL to Suburban Chicago, IL. Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 6 sections
Where 99151 pays more and less in Barrington, Illinois
Barrington, Illinois maps to 2 Medicare payment localities in our Census-to-CMS crosswalk. A city name alone doesn’t confirm an address’s payment area.
| Payment locality | Office | Facility |
|---|---|---|
| Chicago, IL | $63.76 | $22.47 |
| Suburban Chicago, IL | $64.22 | $22.02 |
How payment areas work in Barrington
City limits and Medicare payment areas are different maps. These are the payment areas that cover the city’s counties; the service ZIP decides which one applies.
- Chicago · Cook County
- Suburban Chicago · Lake County
City boundaries: 2026 Census geography · Census source · CMS county-to-locality definitions
How the 99151 rate is calculated
Each of 99151’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · 99151
RVUs × geographic indexes × conversion factor
Work0.50
0.50 RVUs× 1.000 GPCI
Practice expense1.33
1.33 RVUs× 1.000 GPCI
Malpractice0.03
0.03 RVUs× 1.000 GPCI
Adjusted RVUs
1.8600
Conversion factor
$33.4009
Medicare rate
$62.13
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 99151
99151 has no global surgery period, no multiple-procedure, bilateral or assistant-at-surgery adjustment, and no professional/technical split. What changes the payment is where the service happens: the place of service on the claim decides whether Medicare pays the office or the facility rate.
Place of service · 99151
Which rate does Medicare pay?
The POS code on the claim line (CMS-1500 box 24B).
POS 11 · non-facility rate · national
$62.13
- Non-facility (office)
- $62.13
- Facility
- $21.04
Higher because the practice carries its own overhead.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
Show the CMS file lines behind this rate
Fee sheets · Coming soon
Put 99151 and the rest of your codes on one sheet
Your codes at your locality, with payer contracts beside Medicare.
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