How much does Medicare pay for CPT 84436?

Medicare allowed an average of $6.73 per service and paid $6.73 of that, the balance being the patient's coinsurance and deductible (2024 data). Providers submitted an average of $42.89, which is what they billed rather than what they received — Medicare pays its fee schedule regardless of the charge.

What is CPT code 84436?

Thyroxine (thyroid chemical), total. It was billed 885,693 times to 680,531 Medicare beneficiaries by 1,171 providers in 2024.

Does 84436 pay differently in an office than a hospital?

Yes. The allowed amount averaged $6.73 in an office setting and $6.57 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 84436 most?

Clinical Laboratory, with 786,378 services from 501 clinicians. Next are Internal Medicine, Family Practice, Endocrinology.

CPT 84436

Thyroxine (thyroid chemical), total

$6.73Medicare-allowed amount per service, averaged across 885,693 services

Providers submitted

$42.89

Asking price, not received

Medicare allowed

$6.73

The fee schedule figure

Medicare paid

$6.73

Balance is patient coinsurance

Providers submitted an average of $42.89 for this code and Medicare allowed $6.73 — 6.4× 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 $6.73 (100%); the rest is the patient’s coinsurance and deductible.

Office pays differently to hospital

Office / non-facility: $6.73
Hospital / facility: $6.57

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. 885,653 services were billed in an office setting and 40 in a facility.

Services: 885,693
Beneficiaries: 680,531
Providers billing it: 1,171
Total allowed: $5,960,714

What Medicare pays for CPT 84436

Across 885,693 services billed by 1,171 providers to 680,531 beneficiaries, Medicare allowed an average of $6.73 per service. That is 1.3 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 84436

Specialty	Services	Beneficiaries	Avg allowed	Providers
Clinical Laboratory	786,378	611,561	$6.73	501
Internal Medicine	29,598	20,639	$6.72	167
Family Practice	23,590	16,256	$6.72	163
Endocrinology	15,835	9,454	$6.72	54
Pathology	7,208	5,420	$6.71	19
Hematology-Oncology	5,670	3,683	$6.71	65
Cardiology	5,510	4,077	$6.72	23
Rheumatology	3,589	2,941	$6.72	28
Nurse Practitioner	2,914	2,366	$6.72	70
Physician Assistant	1,365	1,017	$6.70	24
Medical Oncology	1,303	818	$6.71	19
General Practice	661	510	$6.68	7
Gastroenterology	330	303	$6.73	3
Urology	278	237	$6.73	3
Interventional Cardiology	226	201	$6.60	5

84436 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
New Jersey	174,042	$6.73	$6.73	66
Florida	136,660	$6.73	$6.73	93
Texas	99,425	$6.72	$6.73	104
California	96,751	$6.73	$6.73	81
New York	68,186	$6.73	$6.73	160
North Carolina	66,698	$6.73	$6.73	32
Ohio	34,301	$6.72	$6.73	19
Alabama	30,808	$6.72	$6.73	26
Georgia	25,550	$6.72	$6.73	96
Arizona	25,463	$6.73	$6.73	7
Tennessee	17,492	$6.72	$6.73	24
Illinois	17,355	$6.73	$6.73	30
Massachusetts	11,130	$6.72	$6.73	29
Kansas	9,922	$6.73	$6.73	13
Pennsylvania	8,784	$6.72	$6.73	16
Maryland	8,339	$6.73	$6.73	28
Virginia	6,440	$6.72	$6.73	48
Washington	6,016	$6.73	$6.73	9
Nevada	5,942	$6.72	$6.73	15
Oklahoma	5,023	$6.73	$6.73	6
Louisiana	4,429	$6.73	$6.73	24
Puerto Rico	4,279	$6.71	$6.73	78
Arkansas	3,962	$6.69	$6.73	35
Colorado	3,646	$6.72	$6.73	9
Kentucky	2,277	$6.70	$6.73	21
Missouri	2,088	$6.72	$6.73	20
New Mexico	1,394	$6.70	$6.73	3
Michigan	1,328	$6.73	$6.73	15
Indiana	1,286	$6.72	$6.73	4
Mississippi	1,193	$6.71	$6.73	8
Oregon	853	$6.71	$6.73	4
Hawaii	734	$6.72	$6.73	2
Utah	618	$6.72	$6.73	4
South Carolina	548	$6.73	$6.73	7
U.S. Virgin Islands	485	$6.72	$6.73	3
West Virginia	412	$6.72	$6.73	4
Wisconsin	374	$6.60	$6.73	3
Rhode Island	339	$6.71	$6.73	3
New Hampshire	185	$6.73	$6.73	2
North Dakota	142	$6.73	$6.73	1
Iowa	136	$6.73	$6.73	3
Delaware	132	$6.73	$6.73	3
Minnesota	124	$6.73	$6.73	3
Nebraska	106	$6.73	$6.73	2
Maine	101	$6.73	$6.73	1
Connecticut	76	$6.73	$6.73	3
South Dakota	49	$6.73	$6.73	2
Wyoming	42	$6.73	$6.73	1
Idaho	28	$6.73	$6.73	1

Related codes

84443Blood test, thyroid stimulating hormone (tsh)$16.44
84439Thyroxine (thyroid chemical)$8.83
84481Thyroid hormone$16.57
84403Testosterone (hormone) level$25.20
84460Liver enzyme (sgpt)$5.15
84450Liver enzyme (sgot)$4.97
84480Thyroid hormone$13.88
84479Thyroid hormone evaluation$6.34
84402Testosterone (hormone) level$24.87
84466Transferrin (iron binding protein) level$12.45
84425Vitamin b-1 (thiamine) level$20.70
84432Thyroglobulin (thyroid related hormone) level$15.72

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.