How much does Medicare pay for HCPCS A9579?

Medicare allowed an average of $1.47 per service and paid $1.15 of that, the balance being the patient's coinsurance and deductible (2024 data). Providers submitted an average of $10.87, which is what they billed rather than what they received — Medicare pays its fee schedule regardless of the charge.

What is HCPCS code A9579?

Injection, gadolinium-based magnetic resonance contrast agent, not otherwise specified (nos), per ml. It was billed 664,794 times to 40,315 Medicare beneficiaries by 651 providers in 2024.

Which specialty bills A9579 most?

Diagnostic Radiology, with 435,786 services from 449 clinicians. Next are Independent Diagnostic Testing Facility (IDTF), Neurology, Neurosurgery.

HCPCS A9579

Injection, gadolinium-based magnetic resonance contrast agent, not otherwise specified (nos), per ml

$1.47Medicare-allowed amount per service, averaged across 664,794 services

Providers submitted

$10.87

Asking price, not received

Medicare allowed

$1.47

The fee schedule figure

Medicare paid

$1.15

Balance is patient coinsurance

Providers submitted an average of $10.87 for this code and Medicare allowed $1.47 — 7.4× 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 $1.15 (78%); the rest is the patient’s coinsurance and deductible.

Services: 664,794
Beneficiaries: 40,315
Providers billing it: 651
Total allowed: $977,247

What Medicare pays for HCPCS A9579

Across 664,794 services billed by 651 providers to 40,315 beneficiaries, Medicare allowed an average of $1.47 per service. That is 16.5 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.

This is a drug or supply code rather than a service. The unit is usually a dose or a milligram, so the per-service figure is small by construction and the total is what carries meaning — read it alongside the service count rather than on its own.

Who bills A9579

Specialty	Services	Beneficiaries	Avg allowed	Providers
Diagnostic Radiology	435,786	29,786	$1.47	449
Independent Diagnostic Testing Facility (IDTF)	125,638	5,329	$1.46	57
Neurology	30,262	714	$1.47	20
Neurosurgery	11,237	529	$1.45	12
Interventional Radiology	7,448	455	$1.46	11
Cardiology	7,304	220	$1.47	4
Urology	6,721	376	$1.47	13
Family Practice	6,567	421	$1.48	10
Physician Assistant	5,752	429	$1.48	11
Undefined Physician type	5,469	237	$1.47	2
Orthopedic Surgery	4,404	555	$1.48	13
Internal Medicine	4,173	225	$1.44	5
Radiation Oncology	4,062	270	$1.47	10
Hematology-Oncology	2,407	137	$1.47	6
Physical Medicine and Rehabilitation	1,969	215	$1.41	8

A9579 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	127,230	$1.48	$1.17	109
New York	111,660	$1.48	$1.15	69
Florida	83,377	$1.46	$1.17	104
Texas	51,010	$1.47	$1.18	44
Washington	36,685	$1.47	$1.14	23
Tennessee	36,225	$1.46	$1.17	30
Nevada	31,792	$1.48	$1.18	31
Alabama	14,170	$1.48	$1.18	13
Maryland	13,650	$1.48	$1.18	6
Georgia	12,464	$1.45	$1.18	25
New Mexico	11,477	$1.47	$1.18	6
Arizona	11,403	$1.47	$1.11	16
Minnesota	9,231	$1.46	$1.16	16
Pennsylvania	8,494	$1.31	$1.03	12
Mississippi	8,306	$1.44	$1.11	7
South Dakota	8,049	$1.48	$1.18	9
South Carolina	7,892	$1.48	$1.15	5
Michigan	7,573	$1.46	$1.18	9
Louisiana	6,679	$1.47	$1.12	10
Puerto Rico	6,130	$1.47	$1.14	14
Missouri	6,028	$1.48	$1.16	7
North Carolina	5,951	$1.48	$1.09	7
New Jersey	5,765	$1.47	$1.18	12
Connecticut	5,435	$1.48	$1.18	7
Virginia	4,905	$1.48	$1.15	4
Kansas	4,435	$1.48	$1.17	3
Idaho	4,002	$1.48	$1.08	11
Iowa	3,745	$1.48	$1.17	2
Indiana	2,918	$1.48	$1.13	7
Hawaii	2,631	$1.47	$1.18	3
Ohio	2,282	$1.48	$1.18	4
Delaware	2,055	$1.48	$1.18	1
Kentucky	1,572	$1.45	$1.17	4
Arkansas	1,393	$1.48	$1.18	3
Illinois	1,380	$1.49	$1.19	2
New Hampshire	1,245	$1.49	$1.18	3
Wisconsin	988	$1.48	$1.13	2
Massachusetts	876	$1.49	$1.16	3
Guam	834	$1.48	$1.18	1
Wyoming	630	$1.49	$1.19	1
Nebraska	585	$1.49	$1.18	1
Montana	546	$1.47	$1.17	1
Rhode Island	455	$1.49	$1.18	1
Oregon	244	$1.48	$1.18	1
Oklahoma	205	$1.48	$1.18	1
District of Columbia	192	$1.49	$1.19	1

Related codes

A9575Injection, gadoterate meglumine, 0.1 ml$0.12
A9585Injection, gadobutrol, 0.1 ml$0.31
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
A9587Gallium ga-68$84.81

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.