CPT code 99157: Moderate sedation, additional time, separate clinician2026 Medicare rate & RVUs in Aromas, California
CPT 99157: $54.46–$59.93 facility across 2 localities in Aromas, CA in 2026 Medicare. Compare each area.
CMS doesn’t publish an office rate for 99157 in Aromas, California.
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 99157 pays more and less in Aromas, California
Aromas, California 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 |
|---|---|---|
| Salinas, CA | Unavailable | $54.46 |
| San Benito County, CA | Unavailable | $59.93 |
How payment areas work in Aromas
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.
- Monterey · Monterey County
- San Benito · San Benito County
City boundaries: 2026 Census geography · Census source · CMS county-to-locality definitions
How the 99157 rate is calculated
Each of 99157’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 · 99157
RVUs × geographic indexes × conversion factor
Work1.25
1.25 RVUs× 1.000 GPCI
Practice expense0.23
0.23 RVUs× 1.000 GPCI
Malpractice0.14
0.14 RVUs× 1.000 GPCI
Adjusted RVUs
1.6200
Conversion factor
$33.4009
Medicare rate
$54.11
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 99157
The CMS indicators that decide how 99157 is paid alongside other services.
CMS payment indicators · 99157
Moderate sedation, additional time, separate clinician
| Rule | CMS value | What it means |
|---|---|---|
| Global period | ZZZ | Add-on code: falls within the primary procedure’s global period. |
| Multiple procedures | 9 | The concept doesn’t apply. |
| Bilateral (modifier 50) | 9 | The concept doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 9 | The concept doesn’t apply. |
| Co-surgeons (62) | 9 | The concept doesn’t apply. |
| Team surgery (66) | 9 | The concept doesn’t apply. |
| Professional/technical | 9 | The concept doesn’t apply. |
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
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Your codes at your locality, with payer contracts beside Medicare.
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