Billing code 77370: Radiation physics consultMedicare rate & RVUs
A medical physicist performs a physician-requested, case-specific analysis or measurement for unusual radiation treatment circumstances beyond routine planning and review.
Medicare pays $150.97 for 77370 nationally in the office. Local office rates run $127.96–$213.16.
Medicare rate · 77370
Radiation physics consult
Swap in your local Medicare rate.
- Work RVUs
- 0
- Total RVUs
- 4.52
- Global days
- XXX
National rate · 2026
$150.97
Office setting, before claim adjustments.
See every locality for 77370 → · Billed by an NP, PA or therapist? →
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 10 sections
What 77370 covers
A radiation oncologist may request a medical physicist’s focused analysis when a patient’s treatment presents unusual technical circumstances. The physicist may perform case-specific calculations or measurements and assess how those findings affect the treatment setup or delivery. This work is distinct from routine dose planning and ongoing physics review during a course of radiation therapy.
Report 77370 for the special technical consultation, supported by the physician’s request and a written physicist report describing the unusual circumstance, work performed, and findings. The record should show why routine planning or review was insufficient. CMS classifies this as a technical-component-only code; a separate code covers interpretation. The fee schedule assigns no physician work RVUs to this code, reflecting that its reported service is the technical physics work rather than interpretation.
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.
Where 77370 pays more and less
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
109 payment localities
$127.96 to $213.16
109 of 109 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Alabama | $130.55 | Unavailable |
| Alaska* | $158.21 | Unavailable |
| Arizona | $145.73 | Unavailable |
| Arkansas | $127.96 | Unavailable |
| Atlanta | $154.31 | Unavailable |
| Austin | $158.87 | Unavailable |
| Bakersfield | $163.03 | Unavailable |
| Baltimore/Surr. Cntys | $162.81 | Unavailable |
| Beaumont | $137.48 | Unavailable |
| Brazoria | $148.56 | Unavailable |
| Chicago | $158.19 | Unavailable |
| Chico | $162.66 | Unavailable |
| Colorado | $159.22 | Unavailable |
| Connecticut | $163.26 | Unavailable |
| Dallas | $149.68 | Unavailable |
| Dc + Md/Va Suburbs | $177.52 | Unavailable |
| Delaware | $148.71 | Unavailable |
| Detroit | $149.30 | Unavailable |
| East St. Louis | $144.38 | Unavailable |
| El Centro | $162.68 | Unavailable |
| Fort Lauderdale | $156.92 | Unavailable |
| Fort Worth | $148.28 | Unavailable |
| Fresno | $162.66 | Unavailable |
| Galveston | $149.09 | Unavailable |
| Hanford-Corcoran | $162.66 | Unavailable |
| Hawaii, Guam | $168.86 | Unavailable |
| Houston | $151.83 | Unavailable |
| Idaho | $136.65 | Unavailable |
| Indiana | $137.74 | Unavailable |
| Iowa | $135.54 | Unavailable |
| Kansas | $134.47 | Unavailable |
| Kentucky | $134.34 | Unavailable |
| Los Angeles-Long Beach-Anaheim (Los Angeles/Orange Cnty) | $176.00 | Unavailable |
| Madera | $162.66 | Unavailable |
| Manhattan | $177.55 | Unavailable |
| Merced | $162.66 | Unavailable |
| Metropolitan Boston | $178.74 | Unavailable |
| Metropolitan Kansas City | $141.95 | Unavailable |
| Metropolitan Philadelphia | $157.92 | Unavailable |
| Metropolitan St. Louis | $143.98 | Unavailable |
| Miami | $164.62 | Unavailable |
| Minnesota | $151.68 | Unavailable |
| Mississippi | $129.38 | Unavailable |
| Modesto | $162.66 | Unavailable |
| Montana** | $150.96 | Unavailable |
| Napa | $194.92 | Unavailable |
| Nebraska | $136.62 | Unavailable |
| Nevada** | $150.28 | Unavailable |
| New Hampshire | $156.33 | Unavailable |
| New Mexico | $139.86 | Unavailable |
| New Orleans | $143.04 | Unavailable |
| North Carolina | $139.38 | Unavailable |
| North Dakota** | $148.00 | Unavailable |
| Northern Nj | $174.67 | Unavailable |
| Nyc Suburbs/Long Island | $182.85 | Unavailable |
| Ohio | $138.31 | Unavailable |
| Oklahoma | $134.24 | Unavailable |
| Oxnard-Thousand Oaks-Ventura | $175.65 | Unavailable |
| Portland | $165.89 | Unavailable |
| Poughkpsie/N Nyc Suburbs | $165.89 | Unavailable |
| Puerto Rico | $152.50 | Unavailable |
| Queens | $179.75 | Unavailable |
| Redding | $162.66 | Unavailable |
| Rest Of California | $162.66 | Unavailable |
| Rest Of Florida | $147.07 | Unavailable |
| Rest Of Georgia | $136.17 | Unavailable |
| Rest Of Illinois | $141.09 | Unavailable |
| Rest Of Louisiana | $133.98 | Unavailable |
| Rest Of Maine | $137.40 | Unavailable |
| Rest Of Maryland | $152.31 | Unavailable |
| Rest Of Massachusetts | $157.69 | Unavailable |
| Rest Of Michigan | $138.92 | Unavailable |
| Rest Of Missouri | $130.70 | Unavailable |
| Rest Of New Jersey | $164.89 | Unavailable |
| Rest Of New York | $142.19 | Unavailable |
| Rest Of Oregon | $148.90 | Unavailable |
| Rest Of Pennsylvania | $138.73 | Unavailable |
| Rest Of Texas | $143.04 | Unavailable |
| Rest Of Washington | $157.51 | Unavailable |
| Rhode Island | $155.25 | Unavailable |
| Riverside-San Bernardino-Ontario | $164.25 | Unavailable |
| Sacramento-Roseville-Folsom | $172.44 | Unavailable |
| Salinas | $171.86 | Unavailable |
| San Diego-Chula Vista-Carlsbad | $177.29 | Unavailable |
| San Francisco-Oakland-Berkeley (Marin Cnty) | $208.11 | Unavailable |
| San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty) | $207.94 | Unavailable |
| San Jose-Sunnyvale-Santa Clara (San Benito Cnty) | $213.16 | Unavailable |
| San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty) | $212.47 | Unavailable |
| San Luis Obispo-Paso Robles | $168.94 | Unavailable |
| Santa Cruz-Watsonville | $180.03 | Unavailable |
| Santa Maria-Santa Barbara | $172.88 | Unavailable |
| Santa Rosa-Petaluma | $181.93 | Unavailable |
| Seattle (King Cnty) | $183.19 | Unavailable |
| South Carolina | $139.13 | Unavailable |
| South Dakota** | $147.65 | Unavailable |
| Southern Maine | $147.81 | Unavailable |
| Stockton | $162.66 | Unavailable |
| Suburban Chicago | $158.78 | Unavailable |
| Tennessee | $135.37 | Unavailable |
| Utah | $141.70 | Unavailable |
| Vallejo | $194.68 | Unavailable |
| Vermont | $147.04 | Unavailable |
| Virgin Islands | $152.50 | Unavailable |
| Virginia | $147.02 | Unavailable |
| Visalia | $162.66 | Unavailable |
| West Virginia | $134.01 | Unavailable |
| Wisconsin | $141.37 | Unavailable |
| Wyoming** | $149.67 | Unavailable |
| Yuba City | $162.66 | Unavailable |
77370 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.
$127.96
$187.91
Color shows the midpoint of each state’s locality range.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | $158.21 | 1 |
| AL | $130.55 | 1 |
| AR | $127.96 | 1 |
| AZ | $145.73 | 1 |
| CA | $162.66–$213.16 | 29 |
| CO | $159.22 | 1 |
| CT | $163.26 | 1 |
| DC | $177.52 | 1 |
| DE | $148.71 | 1 |
| FL | $147.07–$164.62 | 3 |
| GA | $136.17–$154.31 | 2 |
| GU | $168.86 | 1 |
| HI | $168.86 | 1 |
| IA | $135.54 | 1 |
| ID | $136.65 | 1 |
| IL | $141.09–$158.78 | 4 |
| IN | $137.74 | 1 |
| KS | $134.47 | 1 |
| KY | $134.34 | 1 |
| LA | $133.98–$143.04 | 2 |
| MA | $157.69–$178.74 | 2 |
| MD | $152.31–$177.52 | 3 |
| ME | $137.40–$147.81 | 2 |
| MI | $138.92–$149.30 | 2 |
| MN | $151.68 | 1 |
| MO | $130.70–$143.98 | 3 |
| MS | $129.38 | 1 |
| MT | $150.96 | 1 |
| NC | $139.38 | 1 |
| ND | $148.00 | 1 |
| NE | $136.62 | 1 |
| NH | $156.33 | 1 |
| NJ | $164.89–$174.67 | 2 |
| NM | $139.86 | 1 |
| NV | $150.28 | 1 |
| NY | $142.19–$182.85 | 5 |
| OH | $138.31 | 1 |
| OK | $134.24 | 1 |
| OR | $148.90–$165.89 | 2 |
| PA | $138.73–$157.92 | 2 |
| PR | $152.50 | 1 |
| RI | $155.25 | 1 |
| SC | $139.13 | 1 |
| SD | $147.65 | 1 |
| TN | $135.37 | 1 |
| TX | $137.48–$158.87 | 8 |
| UT | $141.70 | 1 |
| VA | $147.02–$177.52 | 2 |
| VI | $152.50 | 1 |
| VT | $147.04 | 1 |
| WA | $157.51–$183.19 | 2 |
| WI | $141.37 | 1 |
| WV | $134.01 | 1 |
| WY | $149.67 | 1 |
How the 77370 rate is calculated
Each of 77370’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 · 77370
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 0.00Practice expense 4.37Malpractice 0.15
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 77370
The CMS indicators that decide how 77370 is paid alongside other services.
CMS payment indicators · 77370
Radiation physics consult
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 3 | Technical component only. |
77370 compared with similar codes
Compare codes
77370 vs 77336 vs 77300 vs 77301: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 77336Physics review
- Choose 77370 for a special, physician-requested analysis tied to unusual treatment circumstances. Choose 77336 for ongoing physics review during the treatment course.
- 77300Dosimetry calculation
- 77300 represents radiation dose calculation work. 77370 represents a broader special physics consultation when unusual circumstances call for focused analysis or measurement.
- 77301IMRT planning
- 77301 is for IMRT treatment planning. It does not represent the separate special physics consultation that may be needed for unusual technical circumstances.
77370 billing questions
How does 77370 differ from 77336?
Use 77370 for a physician-requested, case-specific physics analysis prompted by unusual treatment circumstances. Code 77336 represents ongoing physics review during a radiation treatment course.
Can routine dose calculation be reported as 77370?
No. A routine dose calculation is distinct from the special consultation reported with 77370; document the unusual circumstance and the additional physics work.
Does 77370 include the physician’s interpretation?
CMS identifies 77370 as technical-component-only. Interpretation is covered by a separate code.
What documentation supports 77370?
Keep the radiation oncologist’s request and the physicist’s report. The report should identify the unusual treatment issue, the calculations or measurements performed, and the resulting findings.
Is 77370 reported for every complex radiation plan?
No. Complexity alone is not the service; the record should support a distinct, physician-requested physics consultation beyond routine planning or review.
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
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