How much does Medicare pay for CPT 77338?

Medicare allowed an average of $294.26 per service and paid $234.92 of that, the balance being the patient's coinsurance and deductible (2024 data). Providers submitted an average of $1193.88, which is what they billed rather than what they received — Medicare pays its fee schedule regardless of the charge.

What is CPT code 77338?

Design and construction of radiation treatment device for high precision radiation therapy. It was billed 202,283 times to 165,564 Medicare beneficiaries by 3,886 providers in 2024.

Does 77338 pay differently in an office than a hospital?

Yes. The allowed amount averaged $385.05 in an office setting and $222.17 in a facility. The office rate is generally higher because the practice supplies the room, staff and equipment out of that single payment; in a hospital those are billed separately by the facility.

Which specialty bills 77338 most?

Radiation Oncology, with 198,896 services from 3,834 clinicians. Next are Radiation Therapy Center, Diagnostic Radiology, Hematology-Oncology.

CPT 77338

Design and construction of radiation treatment device for high precision radiation therapy

$294.26Medicare-allowed amount per service, averaged across 202,283 services

Providers submitted

$1193.88

Asking price, not received

Medicare allowed

$294.26

The fee schedule figure

Medicare paid

$234.92

Balance is patient coinsurance

Providers submitted an average of $1193.88 for this code and Medicare allowed $294.26 — 4.1× less. That gap is normal and means nothing on its own: Medicare pays its fee schedule regardless of what is billed, so the submitted figure describes a hospital chargemaster, not a price anyone paid. Of the allowed amount Medicare paid $234.92 (80%); the rest is the patient’s coinsurance and deductible.

Office pays differently to hospital

Office / non-facility: $385.05
Hospital / facility: $222.17

The office rate is higher because the practice supplies the room, staff and equipment out of that payment. In a hospital the facility bills those separately, so the clinician's share is smaller — the total cost to Medicare is usually higher, not lower. 89,537 services were billed in an office setting and 112,746 in a facility.

Services: 202,283
Beneficiaries: 165,564
Providers billing it: 3,886
Total allowed: $59,523,796

What Medicare pays for CPT 77338

Across 202,283 services billed by 3,886 providers to 165,564 beneficiaries, Medicare allowed an average of $294.26 per service. That is 1.2 services per beneficiary, so this is a code patients typically receive more than once. The allowed amount is the figure that matters: it is what Medicare and the patient together owe, set by the fee schedule and adjusted for local practice costs. What a provider chose to submit has no bearing on it.

Who bills 77338

Specialty	Services	Beneficiaries	Avg allowed	Providers
Radiation Oncology	198,896	162,744	$294.40	3,834
Radiation Therapy Center	1,923	1,587	$261.30	19
Diagnostic Radiology	927	800	$321.54	23
Hematology-Oncology	265	215	$306.83	5
Internal Medicine	123	109	$295.55	2
Pediatric Medicine	70	59	$243.87	1
Osteopathic Manipulative Medicine	54	28	$523.11	1
Gynecological Oncology	25	22	$215.34	1

77338 reimbursement by state

Two different numbers. Allowed is what Medicare actually allowed in that state, which includes the local practice-cost adjustment. Standardized strips that geographic adjustment out of the payment, so it is the column to use when comparing states — a difference there reflects how the code was billed, not what it costs to run a practice locally.

State	Services	Allowed	Standardized pmt	Providers
California	20,561	$327.52	$234.59	357
Florida	18,516	$355.27	$281.14	304
Texas	15,248	$337.54	$273.61	258
New York	12,136	$320.70	$227.53	245
Pennsylvania	9,364	$247.52	$195.04	213
Illinois	7,632	$274.74	$215.30	149
Ohio	7,213	$266.89	$214.91	166
Massachusetts	6,047	$246.98	$186.04	123
Arizona	5,897	$373.68	$304.10	96
North Carolina	5,668	$253.28	$208.19	127
New Jersey	5,395	$308.21	$224.71	89
Michigan	5,385	$268.99	$218.31	135
Georgia	5,221	$271.15	$222.05	107
Tennessee	4,651	$244.25	$207.84	80
Maryland	4,583	$316.39	$241.75	77
Virginia	4,546	$273.52	$216.67	73
Indiana	4,105	$256.86	$216.15	78
Washington	3,882	$314.99	$245.51	95
Missouri	3,763	$235.16	$193.38	81
South Carolina	3,738	$293.71	$243.60	54
Minnesota	3,566	$281.14	$220.69	92
Kansas	3,485	$282.39	$235.29	38
Colorado	3,353	$263.99	$207.09	65
Wisconsin	3,350	$238.51	$193.36	94
Arkansas	3,124	$265.38	$233.05	34
Alabama	2,733	$310.21	$262.76	59
Kentucky	2,540	$237.96	$197.74	57
Louisiana	2,258	$327.78	$279.35	46
Oregon	1,983	$257.03	$201.74	54
Oklahoma	1,960	$255.15	$214.19	29
Mississippi	1,902	$225.16	$190.30	25
Iowa	1,808	$214.83	$178.56	32
Connecticut	1,580	$234.60	$176.67	45
Nevada	1,255	$423.89	$338.18	28
Nebraska	1,227	$273.90	$231.43	24
New Hampshire	1,189	$215.70	$176.09	26
Alaska	1,173	$332.66	$224.25	11
Idaho	1,069	$259.01	$218.08	17
Utah	949	$240.12	$193.58	28
West Virginia	917	$243.24	$199.14	20
Montana	860	$219.64	$174.61	15
North Dakota	819	$334.25	$257.40	15
South Dakota	793	$215.35	$174.54	15
Delaware	733	$218.48	$175.11	13
New Mexico	710	$267.49	$216.69	15
Hawaii	691	$254.80	$195.12	16
Maine	637	$250.11	$208.52	16
District of Columbia	579	$310.68	$232.49	17
Rhode Island	574	$341.84	$266.97	17
Wyoming	457	$262.41	$198.51	4
Vermont	398	$273.88	$207.46	10
Guam	49	$484.17	$369.45	1
Puerto Rico	11	$458.43	$365.30	1

Related codes

77300Calculation of radiation therapy dose$41.81
77334Design and construction of complex radiation treatment device$75.55
77336Continuing radiation therapy consultation per week$87.27
77301High precision radiation therapy planning$830.13
77332Design and construction of simple radiation treatment device$30.27
77373Cranial lesion surgery$965.17
77331Special radiation therapy planning$51.76
77370Special medical radiation therapy consultation$146.53
77307Complex radiation therapy planning for delivery of external radiation$178.50
77333Design and construction of intermediate radiation treatment device$73.71
77321Special radiation therapy planning for delivery of external radiation$66.64
77318Complex radiation therapy planning for delivery of internal radiation$389.02

Billing this code is not the same as earning it

An allowed amount is revenue to a practice, not income to a clinician. It funds staff, premises, equipment and supplies before anyone is paid. What clinicians actually earn is published separately by the Department of Labor, and what industry pays them is published separately again by CMS — this site carries both.

What doctors are paid →·Look up a clinician →·All procedure codes →

Where this comes from. CMS Medicare Physician & Other Practitioners, by Provider and Service, 2024. It covers fee-for-service Original Medicare Part B only — not Medicare Advantage, not Medicaid, and not commercial insurance, which typically pays more for the same code.

How it is averaged. CMS publishes one average per provider per code. Every figure here is re-weighted by the number of services, so a clinician who billed the code 4,000 times counts 4,000 times more than one who billed it twice. CMS also suppresses any provider-code pair with fewer than 11 beneficiaries, so low-volume practice is missing from these totals by design.