RxDoctor Payments Data

CPT 84439

Thyroxine (thyroid chemical), free

$8.83Medicare-allowed amount per service, averaged across 5,399,478 services
Providers submitted
$87.70

Asking price, not received

Medicare allowed
$8.83

The fee schedule figure

Medicare paid
$8.83

Balance is patient coinsurance

Providers submitted an average of $87.70 for this code and Medicare allowed $8.839.9× 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 $8.83 (100%); the rest is the patient’s coinsurance and deductible.

Office pays differently to hospital

Office / non-facility
$8.83
Hospital / facility
$8.82

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. 5,398,805 services were billed in an office setting and 673 in a facility.

Services
5,399,478

Medicare Part B, 2024

Beneficiaries
3,797,789
Providers billing it
10,641
Total allowed
$47,677,391

Services × allowed amount

What Medicare pays for CPT 84439

Across 5,399,478 services billed by 10,641 providers to 3,797,789 beneficiaries, Medicare allowed an average of $8.83 per service. That is 1.4 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 84439

SpecialtyServicesBeneficiariesAvg allowedProviders
Clinical Laboratory4,224,8322,991,625$8.83773
Internal Medicine375,258262,014$8.812,806
Family Practice311,062223,300$8.803,005
Endocrinology162,34599,454$8.79554
Nurse Practitioner92,24968,937$8.791,632
Pathology71,68151,959$8.8157
Hematology-Oncology45,44220,041$8.81445
Physician Assistant33,26825,437$8.79666
Cardiology22,50015,198$8.82131
Medical Oncology9,3643,921$8.82106
Rheumatology8,7235,776$8.78101
Urology7,8034,585$8.8119
General Practice7,1445,053$8.8159
Obstetrics & Gynecology3,5202,424$8.7733
Nephrology3,4652,138$8.8231

84439 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.

StateServicesAllowedStandardized pmtProviders
New Jersey689,587$8.83$8.84184
Florida640,351$8.83$8.84854
California621,009$8.83$8.84410
Texas513,003$8.82$8.84934
North Carolina448,546$8.83$8.84666
New York302,661$8.83$8.84865
Arizona218,230$8.83$8.84248
Ohio183,489$8.82$8.84238
Alabama182,056$8.81$8.84425
Tennessee156,788$8.79$8.84900
Georgia140,768$8.82$8.84323
Illinois121,486$8.83$8.84334
Kansas116,736$8.83$8.84147
Maryland97,626$8.82$8.84219
Virginia93,337$8.81$8.84370
Massachusetts85,093$8.83$8.84209
Pennsylvania81,715$8.83$8.84113
Washington66,777$8.82$8.84163
South Carolina54,371$8.81$8.84263
Nevada51,921$8.83$8.8435
Michigan45,556$8.82$8.84147
Oklahoma45,276$8.81$8.8495
Colorado37,978$8.83$8.8493
Oregon35,547$8.80$8.84187
Indiana32,287$8.81$8.8499
Louisiana30,684$8.81$8.84176
Kentucky30,114$8.80$8.84118
Wisconsin29,306$8.75$8.8473
Mississippi25,545$8.76$8.84133
Missouri25,485$8.81$8.84203
Arkansas24,264$8.80$8.84209
Iowa21,763$8.82$8.84210
Hawaii20,948$8.81$8.844
New Mexico19,059$8.80$8.8428
Utah18,575$8.81$8.84168
Nebraska15,204$8.81$8.84125
Minnesota14,792$8.80$8.84208
North Dakota10,934$8.83$8.8422
Puerto Rico8,517$8.79$8.84117
South Dakota8,444$8.81$8.8462
Rhode Island7,039$8.83$8.844
Idaho4,729$8.81$8.8430
West Virginia4,633$8.78$8.8439
Connecticut3,812$8.83$8.8457
Wyoming3,130$8.81$8.8436
Montana2,728$8.82$8.8421
Maine2,133$8.81$8.8423
U.S. Virgin Islands1,797$8.84$8.843
Alaska1,331$8.79$8.8424
Delaware868$8.49$8.842
New Hampshire770$8.81$8.8413
District of Columbia567$8.83$8.847
Guam57$8.63$8.842
Vermont56$8.84$8.843

Related codes

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.