Lab tests CPT 84436 Outpatient

Total T4 test cost in Joplin, MO

In Joplin, MO-KS, 6 hospitals list a cash price for total thyroxine (T4) blood test: from $67.60 to $89.05, with a median of $83.91. The lowest listed price is at Mercy Hospital Carthage — $16.31 less than the median here. Across Missouri, the median is $60.06 at 64 hospitals.

Cash prices at 6 facilities across 5 cities for code 84436, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Sep 1, 2026 and Sep 1, 2026.

Lowest$67.60Mercy Hospital Carthage
Median$83.91half pay less
Highest$89.05in this market
Difference1.3×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in Joplin, MO-KS.

median
Lowest $67.60Highest $89.05

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Mercy Hospital Carthage lowest Carthage, MO · (417) 358-8121 T4 Thyroxine Total $67.60 $104.00 $28.57–$104.00 35% —
source file
Mercy Hospital Columbus Columbus, KS · (620) 429-2545 T4 Thyroxine Total $69.55 $107.00 $6.11–$23.42 35% —
source file
Mercy Hospital Joplin Joplin, MO · (417) 781-2727 T4 Thyroxine Total $82.55 $127.00 $38.10–$127.00 35% —
source file
Freeman Health System - Freeman West Joplin, MO · (417) 347-1111 T4 $85.26 $213.15 — 60% Sep 1, 2026
source file
Freeman Neosho Hospital Neosho, MO · (417) 451-1234 T4 $85.26 $213.15 — 60% Sep 1, 2026
source file
Mercy Specialty Hospital Southeast Kansas Galena, KS · (620) 783-1732 T4 Thyroxine Total $89.05 $137.00 $5.61–$42.21 35% —
source file

Outpatient: lowest $67.60, median $83.91, highest $89.05 — a 1.3× difference within the same market.

As an inpatient, the same code is billed by 2 facilities here, median $85.26. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

Cash or insurance?

At 2 of 4 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.

What it is

A total T4 test measures all the thyroxine hormone in the blood, both bound and free. Most doctors now order free T4 (84439) instead, which is less affected by pregnancy and medicines.

What the price covers

The price usually covers running the test. The blood draw (36415) is often billed as a separate line.