How much does Medicare pay for HCPCS A9541?

Medicare allowed an average of $164.49 per service and paid $130.12 of that, the balance being the patient's coinsurance and deductible (2024 data). Providers submitted an average of $382.23, which is what they billed rather than what they received — Medicare pays its fee schedule regardless of the charge.

What is HCPCS code A9541?

Technetium tc-99m sulfur colloid, diagnostic, per study dose, up to 20 millicuries. It was billed 4,152 times to 4,131 Medicare beneficiaries by 178 providers in 2024.

Which specialty bills A9541 most?

Diagnostic Radiology, with 2,991 services from 136 clinicians. Next are Nuclear Medicine, Independent Diagnostic Testing Facility (IDTF), General Surgery.

HCPCS A9541

Technetium tc-99m sulfur colloid, diagnostic, per study dose, up to 20 millicuries

$164.49Medicare-allowed amount per service, averaged across 4,152 services

Providers submitted

$382.23

Asking price, not received

Medicare allowed

$164.49

The fee schedule figure

Medicare paid

$130.12

Balance is patient coinsurance

Providers submitted an average of $382.23 for this code and Medicare allowed $164.49 — 2.3× 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 $130.12 (79%); the rest is the patient’s coinsurance and deductible.

Services: 4,152
Beneficiaries: 4,131
Providers billing it: 178
Total allowed: $682,962

What Medicare pays for HCPCS A9541

Across 4,152 services billed by 178 providers to 4,131 beneficiaries, Medicare allowed an average of $164.49 per service. 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 A9541

Specialty	Services	Beneficiaries	Avg allowed	Providers
Diagnostic Radiology	2,991	2,973	$163.71	136
Nuclear Medicine	661	658	$184.67	19
Independent Diagnostic Testing Facility (IDTF)	280	280	$133.81	11
General Surgery	83	83	$117.07	3
Internal Medicine	51	51	$148.66	3
Cardiology	38	38	$239.98	2
Interventional Radiology	12	12	$111.22	1
Gastroenterology	12	12	$114.21	1
Family Practice	12	12	$269.70	1
Physician Assistant	12	12	$117.07	1

A9541 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
Florida	638	$101.33	$79.88	34
California	533	$259.99	$205.32	21
Texas	511	$152.39	$122.91	17
Arizona	421	$295.77	$235.52	12
Maryland	382	$91.72	$73.21	11
New York	287	$124.83	$99.07	13
Kansas	213	$117.06	$93.29	10
North Carolina	134	$125.92	$100.35	6
Washington	115	$297.60	$233.80	5
Illinois	101	$112.58	$88.51	5
Iowa	90	$117.07	$93.28	4
Massachusetts	86	$272.00	$221.57	2
New Jersey	80	$87.94	$71.34	5
Nevada	75	$120.36	$102.75	3
New Mexico	60	$137.75	$109.76	4
Georgia	56	$152.67	$121.31	3
Tennessee	55	$154.59	$124.96	4
Connecticut	47	$232.98	$192.32	2
Nebraska	45	$117.66	$96.59	3
Kentucky	43	$115.10	$94.34	2
Mississippi	34	$84.17	$65.32	1
Pennsylvania	33	$123.93	$95.55	2
Missouri	27	$117.14	$89.94	2
Arkansas	24	$204.47	$162.91	2
Idaho	15	$194.83	$155.23	1
Oregon	14	$141.72	$121.86	1
Ohio	11	$59.98	$47.79	1
Minnesota	11	$91.87	$71.31	1
Delaware	11	$89.54	$71.34	1

Related codes

A9575Injection, gadoterate meglumine, 0.1 ml$0.12
A9585Injection, gadobutrol, 0.1 ml$0.31
A9579Injection, gadolinium-based magnetic resonance contrast agent, not oth$1.47
A9500Technetium tc-99m sestamibi$110.81
A9502Technetium tc-99m tetrofosmin$181.87
A9577Injection, gadobenate dimeglumine (multihance), per ml$1.72
A9555Rubidium rb-82$526.83
A9552Fluorodeoxyglucose f-18 fdg$321.77
A9576Injection, gadoteridol, (prohance multipack), per ml$1.46
A9595Piflufolastat f-18$626.38
A9573Injection, gadopiclenol, 1 ml$5.15
A9578Injection, gadobenate dimeglumine (multihance multipack), per ml$1.74

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.