Top billers · Codes · 77300

Who bills 77300?

77300 is the CPT code for: Calculation of radiation therapy dose. In 2024, 4,844 providers billed 77300 1,184,613 times, with an estimated $39.5M paid by Medicare.

$67.14
2026 PFS national rate (office)
4,844
Providers billing it (2024)
1,184,613
Services billed
$39.5M
Est. Medicare paid
The fee

What does Medicare pay for 77300?

Medicare's 2026 Physician Fee Schedule national rate for 77300 is $67.14 in the office setting. National amounts before geographic adjustment — your locality's rate differs slightly.

Office (non-facility) rate$67.14
Facility rateNo separate facility rate
Fee schedule2026 Medicare Physician Fee Schedule

What Medicare actually paid per service in 2024, on average: $33.31 (observed payment across all settings and modifiers — not a fee-schedule rate).

The list

Who bills 77300 the most.

The top 5 billers nationally, ranked by 2024 Medicare service volume.

#ProviderSpecialtyLocationServicesEst. Medicare paid
1Michael Morris, M.D.Diagnostic RadiologyGlen Burnie, MD6,080$333K
2Central Arkansas Radiation Therapy Institute IncRadiation Therapy CenterLittle Rock, AR4,579$102K
3Nathan Uy, M.D.Radiation OncologyTulsa, OK4,166$105K
4Harry Lomas, M.D.Radiation OncologyChico, CA3,811$95K
5Jarrod Adkison, M.D.Radiation OncologyDothan, AL3,282$80K

4,839 more providers billed 77300 in 2024. The full ranked list — filtered to your exact territory, with phone numbers and year-over-year history — is one search in Prospect 811.

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The breakdown

Where 77300 gets billed.

Top states by volume

California127,032 services
Florida119,301 services
Texas88,198 services
New York64,839 services
Pennsylvania55,753 services
Illinois43,574 services
Ohio40,207 services
Massachusetts39,886 services

About this code

CMS descriptionCalculation of radiation therapy dose
Code typeCPT (Level I HCPCS)
Providers billing it (2024)4,844
Services billed (2024)1,184,613
Avg. Medicare payment per service (2024)$33.31
Where these numbers come from. Rates are CMS's own public fee-schedule files — the Physician Fee Schedule, Clinical Laboratory Fee Schedule, ASP drug pricing, DMEPOS, and the OPPS/ASC addenda — each labeled with its file year on this page; national amounts are shown before geographic adjustment. Codes with no separate rate render the fee schedule's own status in words, never a fake $0. Utilization comes from CMS's public Medicare Provider Utilization & Payment data for 2024, the most recent year released. It covers traditional Medicare fee-for-service only (no commercial insurance, no Medicare Advantage), and CMS suppresses any provider-and-code line with fewer than 11 beneficiaries before publishing, so low-volume billers don't appear at all. "Est. Medicare paid" is each billing line's average Medicare payment times its service count, summed — actual per-claim payment varies by setting and modifiers. For drug and supply codes, a "service" is a billed unit (a milligram, a milliliter, a square centimeter), not a patient visit. Code descriptions are CMS's own, from the utilization files. Prospect 811 organizes public data; it doesn't add to or alter it. Not affiliated with or endorsed by CMS. Full detail on the data page.

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