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Medicare Physician Fee Schedule Effective Locality 14212-01 CMS RVU26D Updated

CPT 45385 Medicare rate in Boston, MA

Colonoscopy with polyp removal in ZIPs including 02108, 02116, and 02110

45385 Q4 2026
Locality-adjusted allowed amount
$569.04
in a doctor’s own office or clinic

Facility $238.83

Boston, MA flag Boston, MA (Locality 14212-01)

13.8% above the national baseline ($500.01)

CMS RVU26DOctober 1 – December 31, 2026revision 2

Participating provider, no modifiers, whole service, before sequestration. Change these

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The Medicare allowed amount is $569.04 in the Office (non-facility) setting and $238.83 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 Boston, MA in? Copy link

Boston, MA is in CMS payment locality Metropolitan Boston (14212-01). The same amount applies everywhere in it.

Confirm the locality before using this amount. A split ZIP needs ZIP+4 for an exact match.

ZIP codes in this payment locality (258)

The CMS ZIP-to-locality crosswalk maps 258 ZIP codes to this payment locality. Use this amount only after you confirm the service location is in this locality. Of these, 2 span more than one locality and need ZIP+4 for an exact match.

01431 01432 01434 01450 01460 01463 01464 01469 01470 01471 01472 01474 01701 01702 01703 01704 01705 01718 01719 01720 01721 01730 01731 01741 01742 01746 01748 01749 01752 01754 01760 01770 01773 01775 01776 01778 01784 01801 01803 01805 01806 01807 01808 01813 01815 01821 01822 01824 01825 01826 01827 01850 01851 01852 01853 01854 01862 01863 01864 01865 01866 01867 01876 01879 01880 01886 01887 01888 01889 01890 02019 02021 02025 02026 02027 02030 02032 02035 02038 02052 02053 02054 02056 02062 02067 02070 02071 02072 02081 02090 02093 02101 02102 02103 02104 02105 02106 02107 02108 02109

158 more ZIP codes map to this locality. The Boston, MA locality page lists the full set.

Which ZIP codes does the Boston, MA rate for 45385 cover?

The CMS ZIP-to-locality crosswalk maps 258 ZIP codes to this payment locality, and 45385 has the same amount in every one of them. Examples include 01431, 01432, 01434, 01450, 01460, 01463. Of these, 2 span more than one payment locality and need ZIP+4 for an exact match.

How the Boston, MA amount is calculated Copy link

How locality affects the amount Copy link

Office (non-facility) · Q4 2026 · Participating · Whole service

Boston, MA's $569.04 compares with the $500.01 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 Boston, MA 13.8% above the national baseline.

Boston, MA ranks #14 of 109 Medicare payment localities for 45385, where #1 has the highest allowed amount. Within Massachusetts it's #1 of 2: $52.40 (10.1%) higher than Rest of Massachusetts ($516.64).

Work GPCI
1.041
+$6.11 vs. national
Practice expense GPCI
1.194
+$64.80 vs. national
Malpractice GPCI
0.890
−$1.88 vs. national
2026 conversion factor
$33.4009

Each figure is that GPCI's share of the +$69.03 gap from the national baseline: its RVUs for 45385 × (GPCI − 1.000) × the conversion factor. Practice expense accounts for the most, +$64.80.

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 45385's RVU components is multiplied by its Boston, MA GPCI; the products are summed and multiplied by the conversion factor.

Code
45385
DOS
Not selected; uses this release’s rates
Locality
Metropolitan Boston (14212-01)
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.

RVU × GPCI components of Boston, MA allowed amount for 45385
Component RVU × GPCI = Adjusted
Work 4.46 × 1.041 4.6429
Practice expense · Office (non-facility) 10.00 × 1.194 11.9400
Malpractice 0.51 × 0.890 0.4539
Sum of adjusted RVUs 17.0368
× 33.4009 conversion factor = formula amount $569.04

Component subtotals show four decimals. The formula amount is rounded to cents before any later adjustment.

  1. Locality-adjusted allowed amount $569.04

    After applicable fee-schedule adjustments; sequestration excluded

Citations

  • 45385’s RVUs, PFS status and conversion factor

    Physician relative value file (PPRRVU)CMS RVU26DOctober 1 – December 31, 2026revision 2

    PPRRVU2026_Oct_nonQPP.csv row 5,520 in rvu26d-updated-08-26-2026.zip

    A HCPCS
    45385
    B Modifier
    blank
    D Status code
    A
    F Work RVU
    4.46
    G Non-facility PE RVU
    10.00
    K MP RVU
    0.51
    Z Conversion factor
    33.4009
    In the CMS file

    Loading rows 5,518–5,522 of PPRRVU2026_Oct_nonQPP.csv…

    Download rvu26d-updated-08-26-2026.zip from CMS File fingerprint 4d0d3f19bd954ffc0f5b8439169d267da023d4f6911f4539bb6e98723cb1a626

  • Locality 14212-01’s GPCIs

    Geographic practice cost indices (GPCI)CMS RVU26DOctober 1 – December 31, 2026revision 2

    GPCI2026.csv row 62 in rvu26d-updated-08-26-2026.zip

    A MAC
    14212
    C Locality number
    01
    E Work GPCI
    1.041
    F PE GPCI
    1.194
    G MP GPCI
    0.890
    In the CMS file

    Loading rows 60–64 of GPCI2026.csv…

    Download rvu26d-updated-08-26-2026.zip from CMS File fingerprint 7850e2987d12e46930e49033f96829b5ae11f60dd1f19965329b38cf08b05264

Why is the 45385 rate in Boston, MA 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 1.041, practice expense 1.194, malpractice 0.890—scale each RVU component before the conversion factor is applied, which is why the Boston, MA amount is higher than the $500.01 baseline.

45385 in Boston, MA since Q4 2025 Copy link

Office (non-facility) · Participating · Whole service

The allowed amount went from $492.75 in Q4 2025 to $569.04 in Q4 2026, +$76.29 (+15.5%). The national baseline moved +14.8% over the same period.

What changed 45385's allowed amount in Boston, MA between Q4 2025 and Q4 2026
What moved Effect
Conversion factor National: the dollar multiplier CMS sets each year. +$16.06
45385's RVUs National: CMS revalued the code itself. +$61.45
Boston, MA's GPCIs Local: this payment locality's cost indices. −$1.22
Total change +$76.29

A derived breakdown of the two releases' formula inputs, applied in order: the conversion factor on Q4 2025's RVUs and GPCIs, then 45385'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 45385 in Boston, MA is $238.83, versus $569.04 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 45385 in Boston, MA?

$238.83 in a facility, versus $569.04 in the Office (non-facility) setting—a $330.21 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 Boston, MA 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

The fee-schedule amount for 45385 in the Office (non-facility) setting in Boston, MA. A participating provider accepts it as payment in full, and every figure below starts from it.

$569.04
Medicare's share

80% of the allowed amount, once the annual Part B deductible is met.

$455.23
Sequestration

The 2% cut to Medicare’s share. It never reduces the allowed amount or the patient’s coinsurance.

-$9.10
What Medicare pays

Medicare’s share after sequestration.

$446.13
Patient coinsurance

The remaining 20%. Medigap or Medicaid often covers it.

$113.81
Non-participating amount

What a provider who doesn’t participate in Medicare is allowed on an assigned claim: 95% of the allowed amount.

$540.59
Limiting charge

The most a non-participating provider can bill the patient on an unassigned claim: 115% of the non-participating amount.

$621.68
What is the non-participating amount and limiting charge for 45385 in Boston, MA?

A non-participating provider is paid $540.59—95% of the $569.04 participating fee schedule amount. On an unassigned claim the limiting charge caps what the patient can be billed at $621.68, which is 115% of the non-participating amount.

How much of the Boston, MA 45385 rate does Medicare actually pay?

Medicare pays 80% of the allowed amount ($455.23) once the annual Part B deductible is met, and the beneficiary owes 20% ($113.81). Sequestration reduces Medicare's share by about 2% ($9.10), leaving $446.13. Sequestration never changes the allowed amount itself, which is why it is shown separately here.

Who’s billing it in Boston, MA 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 Boston, MA’s Q4 2026 amounts.

Allowed amount for 45385 by rendering provider, Boston, MA
Billed by Office (non-facility) Facility
Physician (MD/DO) The full fee schedule amount. Open in calculator $569.04 $238.83
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

There’s no CMS utilization data on file for 45385, so only the physician amounts are shown. Each percentage applies before the 80/20 split and sequestration.

Contract rates and comparisons Copy link

Contracted rate: % of Medicare in Boston, MA 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—$569.04 in the office (non-facility) setting—not the $500.01 national baseline.

Opens the calculator set to Boston, MA 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.

45385 in nearby payment localities Copy link

Payment localities in the same region as Boston, MA, nearest first. Each amount is that locality's own GPCI-adjusted Office (non-facility) figure for 45385. Neighboring localities often differ.

Payment locality Allowed · vs. this page

Percentages are against Boston, MA. Every payment locality nationwide is on the CPT 45385 rate map.

Other codes priced in Boston, MA Copy link

Office (non-facility) allowed amounts in this same payment locality, Q4 2026.

Other curated codes and their allowed amounts in Boston, MA
Code and service Allowed vs. national
99213 Routine Follow-Up Office Visit $106.10 +11.5%
99214 Long Follow-Up Office Visit $150.68 +11.1%
66984 Cataract Surgery $510.22 +10.3%
92014 Full Eye Exam, Returning Patient $144.28 +13.4%
99204 Long New Patient Office Visit $196.04 +10.5%
99215 Longest Follow-Up Office Visit $213.27 +10.9%
97110 Physical Therapy Exercises $32.29 +11.1%
99203 New Patient Office Visit $130.58 +11.1%
93000 Heart Tracing $17.27 +12.4%
93306 Heart Ultrasound $226.83 +15.3%
77067 Screening Mammogram $146.46 +16.0%
27447 Knee Replacement $1,245.78 +7.5%

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 14212-01'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 45385 in Boston, MA 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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