CPT code 77336: Physics review, per week of therapy2026 Medicare rate & RVUs in North Carolina

Reports a medical physicist’s recurring review of radiation treatment records and delivery parameters during a course of therapy, counted by week.

CMS RVU26DEffective Oct 1, 2026One payment locality350.6K Medicare services in 2024

In North Carolina, Medicare pays $85.32 for 77336 in the office.

$85.32Office (non-facility)
Not available in this settingHospital or facility
−7.5%vs the national office rate ($92.19)

Check a contract rate as a % of Medicare · 77336 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

We’ll open 77336 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in North Carolina
  2. What 77336 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 77336 covers

A medical physicist performs this recurring technical review during external-beam radiation therapy. The work can include checking treatment documentation, patient-specific parameters, dosimetry, and quality assurance for treatment delivery. It is distinct from creating the initial treatment plan and from the radiation oncologist’s treatment-management service.

Report the service by week of therapy, rather than by treatment fraction or each chart item reviewed. Documentation should support the week’s review and identify the treatment records or parameters assessed. CMS classifies 77336 as technical-component-only, with no physician-work RVU; a separate code covers interpretation. The technical review and any separately reported physician service must represent distinct documented work.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

How North Carolina compares for 77336

Across 109 of 109 payment localities, the office rate for 77336 runs from $78.38 in Arkansas to $130.81 in San Benito County, CA. North Carolina pays $85.32. The RVUs are the same everywhere; the geographic indexes change the dollars.

77336 in North Carolina vs other payment areas
  1. North Carolina · this page$85.32
  2. Los Angeles, CA · California$107.84+$22.52
  3. Washington, DC area · District of Columbia$108.44+$23.12
  4. Miami, FL · Florida$99.45+$14.13
  5. Chicago, IL · Illinois$95.66+$10.34
  6. Manhattan, NY · New York$108.11+$22.79
  7. Alaska · Alaska$96.98+$11.66

Other areas in North Carolina first, then benchmark localities. Bars start at $0.

Every other payment area

77336 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$79.94—
ArkansasArkansas$78.38—
ArizonaArizona$89.06—
Bakersfield, CACalifornia$99.90—
Chico, CACalifornia$99.73—
El Centro, CACalifornia$99.74—
Fresno, CACalifornia$99.73—
Hanford, CACalifornia$99.73—

77336 rates by state

Office rate range in each state. Select a state to see its payment localities.

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

$78.38

$115.27

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
77336 office rate range by state
State / territoryOffice rate rangeLocalities
AK$96.981
AL$79.941
AR$78.381
AZ$89.061
CA$99.73–$130.8129
CO$97.421
CT$99.601
DC$108.441
DE$90.871
FL$89.41–$99.453
GA$82.93–$94.092
GU$103.511
HI$103.511
IA$83.141
ID$83.771
IL$85.69–$96.424
IN$84.431
KS$82.401
KY$82.011
LA$81.76–$87.202
MA$96.47–$109.362
MD$93.07–$108.443
ME$84.11–$90.522
MI$84.67–$90.652
MN$93.151
MO$79.73–$87.883
MS$79.091
MT$92.181
NC$85.321
ND$90.801
NE$83.811
NH$95.581
NJ$100.68–$106.722
NM$85.201
NV$91.891
NY$87.00–$111.175
OH$84.391
OK$82.051
OR$91.13–$101.562
PA$84.69–$96.322
PR$93.141
RI$94.901
SC$85.011
SD$90.631
TN$82.931
TX$83.93–$97.138
UT$86.561
VA$89.97–$108.442
VI$93.141
VT$90.131
WA$96.39–$112.152
WI$86.791
WV$81.421
WY$91.581

See 77336 in every payment locality

How the 77336 rate is calculated

Each of 77336’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 · 77336

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.00

0.00 RVUs× 1.000 GPCI

Practice expense2.69

2.69 RVUs× 1.000 GPCI

Malpractice0.07

0.07 RVUs× 1.000 GPCI

Adjusted RVUs

2.7600

Conversion factor

$33.4009

Medicare rate

$92.19

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact North Carolina inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

9,083

Code
77336
Physician work
0.00
Practice expense
2.69
Malpractice
0.07

GPCI2026.csv

83

Locality
North Carolina
Physician work
1.000
Practice expense
0.933
Malpractice
0.639
Office calculation for 77336 in North Carolina
ComponentRVULocality factorAdjusted
Physician work0.00× 1.0000.0000
Practice expense2.69× 0.9332.5098
Malpractice0.07× 0.6390.0447
Total RVUs2.5545
Conversion factor× 33.4009

Office rate, North Carolina$85.32

Office: (0 × 1 + 2.69 × 0.933 + 0.07 × 0.639) × $33.4009 = $85.32

Open 77336 in the RVU calculator

Payment rules and modifiers for 77336

The CMS indicators that decide how 77336 is paid alongside other services.

CMS payment indicators · 77336

Physics review, per week of therapy

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical3Technical component only.

How 77336 has changed in North Carolina

77336 · Office / nonfacility

$85.32

Effective 2026-10-01

The base rate is $3.84 higher than on 2025-10-01, moving from $81.48 to $85.32 (4.7%).

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release
  1. January 1, 2026

    RVU26A

    $81.48changed to$85.32

    • Conversion factor 32.3465 changed to 33.4009
    • Practice expense RVU 2.67 changed to 2.69
    • Practice expense GPCI 0.926 changed to 0.933
    • Malpractice GPCI 0.665 changed to 0.639

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $81.61changed to$81.48

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 2.59 changed to 2.67
    • Malpractice RVU 0.08 changed to 0.07

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $80.27changed to$81.61

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $80.55changed to$80.27

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 2.50 changed to 2.59
    • Practice expense GPCI 0.927 changed to 0.926
    • Malpractice GPCI 0.742 changed to 0.665
  5. January 1, 2023

    RVU23A

    $77.74changed to$80.55

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 2.35 changed to 2.50
    • Practice expense GPCI 0.928 changed to 0.927
    • Malpractice GPCI 0.819 changed to 0.742

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $76.51changed to$77.74

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 2.31 changed to 2.35
    • Malpractice RVU 0.06 changed to 0.08

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $75.14changed to$76.51

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 2.19 changed to 2.31
    • Practice expense GPCI 0.930 changed to 0.928
    • Malpractice GPCI 0.757 changed to 0.819

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $75.32changed to$75.14

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 2.20 changed to 2.19
    • Practice expense GPCI 0.931 changed to 0.930
    • Malpractice GPCI 0.695 changed to 0.757

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $76.49changed to$75.32

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 2.23 changed to 2.20
    • Malpractice RVU 0.07 changed to 0.06

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $74.68changed to$76.49

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 2.18 changed to 2.23
    • Malpractice GPCI 0.732 changed to 0.695

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $74.18changed to$74.68

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 2.17 changed to 2.18
    • Practice expense GPCI 0.930 changed to 0.931
    • Malpractice GPCI 0.768 changed to 0.732

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $71.73changed to$74.18

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 2.13 changed to 2.17
    • Malpractice RVU 0.02 changed to 0.07

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $71.38changed to$71.73

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $69.48changed to$71.38

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 2.08 changed to 2.13
    • Malpractice RVU 0.01 changed to 0.02
    • Practice expense GPCI 0.929 changed to 0.930
    • Malpractice GPCI 0.732 changed to 0.768

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $40.61changed to$69.48

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 1.28 changed to 2.08
    • Practice expense GPCI 0.927 changed to 0.929
    • Malpractice GPCI 0.695 changed to 0.732

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $40.61

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$85.32Not available in this settingRVU26D
2026-07-01$85.32Not available in this settingRVU26C
2026-04-01$85.32Not available in this settingRVU26B
2026-01-01$85.32Not available in this settingRVU26A
2025-10-01$81.48Not available in this settingRVU25D
2025-07-01$81.48Not available in this settingRVU25C
2025-04-01$81.48Not available in this settingRVU25B
2025-01-01$81.48Not available in this settingRVU25A
2024-10-01$81.61Not available in this settingRVU24D
2024-07-01$81.61Not available in this settingRVU24C
2024-04-01$81.61Not available in this settingRVU24B
2024-03-09$81.61Not available in this settingRVU24AR
2024-01-01$80.27Not available in this settingRVU24A
2023-10-01$80.55Not available in this settingRVU23D
2023-07-01$80.55Not available in this settingRVU23C
2023-04-01$80.55Not available in this settingRVU23B
2023-01-01$80.55Not available in this settingRVU23A
2022-10-01$77.74Not available in this settingRVU22D
2022-07-01$77.74Not available in this settingRVU22C
2022-04-01$77.74Not available in this settingRVU22B
2022-01-01$77.74Not available in this settingRVU22A
2021-10-01$76.51Not available in this settingRVU21D
2021-07-01$76.51Not available in this settingRVU21C
2021-04-01$76.51Not available in this settingRVU21B
2021-01-01$76.51Not available in this settingRVU21A
2020-10-01$75.14Not available in this settingRVU20D
2020-07-01$75.14Not available in this settingRVU20C
2020-04-01$75.14Not available in this settingRVU20B
2020-01-01$75.14Not available in this settingRVU20A
2019-10-01$75.32Not available in this settingRVU19D
2019-07-01$75.32Not available in this settingRVU19C
2019-04-01$75.32Not available in this settingRVU19B
2019-01-01$75.32Not available in this settingRVU19A
2018-10-01$76.49Not available in this settingRVU18D
2018-07-01$76.49Not available in this settingRVU18C
2018-04-01$76.49Not available in this settingRVU18B
2018-01-01$76.49Not available in this settingRVU18AR1
2017-10-01$74.68Not available in this settingRVU17D
2017-07-01$74.68Not available in this settingRVU17C
2017-04-01$74.68Not available in this settingRVU17B
2017-01-01$74.68Not available in this settingRVU17A
2016-10-01$74.18Not available in this settingRVU16D
2016-07-01$74.18Not available in this settingRVU16C
2016-04-01$74.18Not available in this settingRVU16B
2016-01-01$74.18Not available in this settingRVU16A
2015-10-01$71.73Not available in this settingRVU15D
2015-07-01$71.73Not available in this settingRVU15C
2015-04-01$71.38Not available in this settingRVU15B
2015-01-01$71.38Not available in this settingRVU15A
2014-10-01$69.48Not available in this settingRVU14D
2014-07-01$69.48Not available in this settingRVU14C
2014-04-01$69.48Not available in this settingRVU14B
2014-01-01$69.48Not available in this settingRVU14A
2013-10-01$40.61Not available in this settingRVU13D
2013-07-01$40.61Not available in this settingRVU13C
2013-04-01$40.61Not available in this settingRVU13B
2013-01-01$40.61Not available in this settingRVU13AR

Price 77336 for an earlier date of service

Where the North Carolina rate applies

North Carolina is a Medicare payment area, not a city. Our Census mapping connects it to 785 cities and communities in North Carolina. Some span more than one payment area; confirm with the service ZIP.

  • Aberdeen
  • Advance
  • Ahoskie
  • Alamance
  • Albemarle
  • Alexis
  • Alliance
  • Altamahaw

Browse all communities in North Carolina

77336 billing questions

Is 77336 reported per treatment fraction?

No. It is reported per week of therapy, based on the documented weekly physics review rather than the number of fractions delivered.

How does 77336 differ from 77370?

77336 represents recurring physics review during treatment. 77370 is for a separately requested, special medical physics consultation addressing a specific problem.

Can 77336 be billed with radiation treatment management?

Yes, the weekly physics review is a distinct technical service from the radiation oncologist’s treatment-management service, reported separately when each service is performed and documented.

Should modifier 26 be appended to 77336?

No. CMS identifies 77336 as technical-component-only; a separate code covers interpretation.

What documentation supports 77336?

Record the week of therapy reviewed and the treatment documentation, parameters, dosimetry, or delivery quality checks assessed by the medical physicist.

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
RVUs for 77336PPRRVU2026_Oct_nonQPP.csv, line 9,083 (RVU26D)
Geographic factors for North CarolinaGPCI2026.csv, line 83 (RVU26D)

Open CMS sourceHow we calculate rates

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