How much does Medicare pay for CPT 83090?

Medicare allowed an average of $17.55 per service and paid $17.55 of that, the balance being the patient's coinsurance and deductible (2024 data). Providers submitted an average of $153.35, which is what they billed rather than what they received — Medicare pays its fee schedule regardless of the charge.

What is CPT code 83090?

Homocysteine (amino acid) level. It was billed 259,034 times to 212,122 Medicare beneficiaries by 402 providers in 2024.

Which specialty bills 83090 most?

Clinical Laboratory, with 234,249 services from 264 clinicians. Next are Internal Medicine, Cardiology, Family Practice.

CPT 83090

Homocysteine (amino acid) level

$17.55Medicare-allowed amount per service, averaged across 259,034 services

Providers submitted

$153.35

Asking price, not received

Medicare allowed

$17.55

The fee schedule figure

Medicare paid

$17.55

Balance is patient coinsurance

Providers submitted an average of $153.35 for this code and Medicare allowed $17.55 — 8.7× 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 $17.55 (100%); the rest is the patient’s coinsurance and deductible.

Services: 259,034
Beneficiaries: 212,122
Providers billing it: 402
Total allowed: $4,546,047

What Medicare pays for CPT 83090

Across 259,034 services billed by 402 providers to 212,122 beneficiaries, Medicare allowed an average of $17.55 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 83090

Specialty	Services	Beneficiaries	Avg allowed	Providers
Clinical Laboratory	234,249	196,465	$17.55	264
Internal Medicine	8,867	5,393	$17.54	40
Cardiology	3,790	1,705	$17.52	6
Family Practice	2,812	2,299	$17.53	15
Pathology	2,204	1,934	$17.55	11
Rheumatology	1,814	612	$17.51	2
Endocrinology	1,597	779	$17.55	6
Nurse Practitioner	1,086	820	$17.55	12
Hematology-Oncology	817	721	$17.54	22
Interventional Cardiology	377	249	$17.56	1
General Practice	318	271	$17.45	6
Physician Assistant	302	207	$17.50	7
Obstetrics & Gynecology	287	248	$17.50	3
Geriatric Medicine	262	192	$17.52	1
Neurology	117	110	$17.56	2

83090 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	48,007	$17.55	$17.56	64
Florida	36,121	$17.52	$17.56	52
Massachusetts	21,730	$17.55	$17.56	5
North Carolina	20,402	$17.55	$17.57	8
Ohio	19,400	$17.56	$17.56	12
New York	17,327	$17.55	$17.56	50
New Jersey	16,014	$17.55	$17.56	19
Texas	12,757	$17.56	$17.56	18
Arizona	9,047	$17.53	$17.56	10
Illinois	6,995	$17.56	$17.56	15
Georgia	6,868	$17.55	$17.56	2
North Dakota	5,634	$17.56	$17.56	2
Kansas	4,676	$17.56	$17.56	4
Alabama	4,232	$17.55	$17.56	3
Washington	3,496	$17.54	$17.56	7
Pennsylvania	3,250	$17.56	$17.56	6
Nevada	3,047	$17.54	$17.56	9
Tennessee	3,015	$17.52	$17.56	4
Michigan	2,782	$17.54	$17.55	13
Kentucky	2,772	$17.56	$17.56	13
Maryland	2,365	$17.55	$17.56	8
Hawaii	1,831	$17.51	$17.56	2
Colorado	976	$17.55	$17.56	6
Oregon	910	$17.48	$17.56	6
Oklahoma	825	$17.56	$17.56	6
South Carolina	718	$17.44	$17.56	7
Puerto Rico	589	$17.49	$17.56	9
Wisconsin	478	$17.34	$17.56	5
New Mexico	431	$17.53	$17.56	2
Minnesota	428	$17.53	$17.56	5
Indiana	404	$17.52	$17.56	7
Mississippi	396	$17.53	$17.56	3
Rhode Island	241	$17.56	$17.56	1
Virginia	215	$17.42	$17.56	4
U.S. Virgin Islands	135	$17.56	$17.56	2
Nebraska	122	$17.56	$17.56	1
Utah	115	$17.43	$17.56	3
Iowa	78	$17.56	$17.56	3
Idaho	51	$17.56	$17.56	1
Maine	47	$17.56	$17.56	1
Louisiana	38	$17.56	$17.56	2
South Dakota	35	$17.56	$17.56	1
Connecticut	34	$17.56	$17.56	1

Related codes

83036Hemoglobin a1c level$9.49
83001Gonadotropin, follicle stimulating (reproductive hormone) level$18.16
83002Gonadotropin, luteinizing (reproductive hormone) level$18.11
83010Haptoglobin (serum protein) level$12.31
83013Breath test analysis for helicobacter pylori$65.81
83037Hemoglobin a1c level$9.30
83021Hemoglobin analysis and measurement$17.69
83069Urine hemoglobin level$3.85
83014Administration of drug for helicobacter pylori$7.69
83020Hemoglobin analysis and measurement$14.03
83003Human growth hormone level$16.31
83018Heavy metal level$19.57

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.