Total T4 test cost in Phoenix, AZ
In Phoenix-Mesa-Chandler, AZ, 31 hospitals list a cash price for total thyroxine (T4) blood test: from $6.33 to $255.00, with a median of $15.58. The lowest listed price is at Banner Casa Grande Medical Center — $9.25 less than the median here. Across Arizona, the median is $36.42 at 53 hospitals.
Cash prices at 31 facilities across 14 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 Jan 1, 2026 and Aug 6, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Phoenix-Mesa-Chandler, AZ.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Banner Casa Grande Medical Center lowest Casa Grande, AZ · (520) 381-6300 LAB THYROXINE T4 TOTAL File of Mar 2, 2026 · source file | $6.33 | $56.00 | $6.87–$42.00 | 89% |
| Mercy Gilbert Medical Center Gilbert, AZ · (480) 728-8000 RL-A-FTIP 3005976B File of Feb 28, 2026 · source file | $6.77 | $27.48 | $3.85–$27.48 | 75% |
| Banner Baywood Medical Center Mesa, AZ · (480) 321-2000 LAB THYROXINE T4 TOTAL File of Mar 2, 2026 · source file | $7.11 | $56.00 | $6.87–$42.00 | 87% |
| Chandler Regional Medical Center Chandler, AZ · (480) 728-3000 RL-A-FTIP 3005976B File of Feb 28, 2026 · source file | $7.37 | $27.48 | $3.85–$27.48 | 73% |
| Valleywise Health Medical Center Phoenix, AZ · (602) 344-5011 HC THYROXINE (T-4) TOTAL File of Jun 28, 2026 · source file | $7.90 | $90.00 | $4.47–$19.20 | 91% |
| Banner Desert Medical Center Mesa, AZ · (480) 412-3000 LAB THYROXINE T4 TOTAL File of Mar 2, 2026 · source file | $8.40 | $56.00 | $6.87–$42.00 | 85% |
| Banner Boswell Medical Center Sun City, AZ · (623) 832-4000 LAB THYROXINE T4 TOTAL File of Mar 2, 2026 · source file | $8.46 | $56.00 | $6.87–$44.80 | 85% |
| Banner Del E Webb Medical Center Sun City West, AZ · (623) 524-4000 LAB THYROXINE T4 TOTAL File of Mar 2, 2026 · source file | $8.62 | $56.00 | $6.87–$44.80 | 85% |
| Banner Estrella Medical Center Phoenix, AZ · (623) 327-4000 LAB THYROXINE T4 TOTAL File of Mar 2, 2026 · source file | $8.85 | $56.00 | $6.87–$42.00 | 84% |
| Banner Thunderbird Medical Center Glendale, AZ · (602) 865-4470 LAB THYROXINE T4 TOTAL File of Mar 2, 2026 · source file | $8.85 | $56.00 | $6.87–$72.99 | 84% |
| Banner University Medical Center Phoenix Phoenix, AZ · (602) 839-2000 LAB THYROXINE T4 TOTAL File of Mar 2, 2026 · source file | $8.96 | $56.00 | $6.87–$42.00 | 84% |
| Banner Gateway Medical Center Gilbert, AZ · (480) 543-2000 LAB THYROXINE T4 TOTAL File of May 1, 2026 · source file | $9.30 | $56.00 | $6.87–$42.00 | 83% |
| Banner Ironwood Medical Center San Tan Valley, AZ · (480) 394-4000 LAB THYROXINE T4 TOTAL File of Mar 2, 2026 · source file | $9.69 | $56.00 | $6.87–$42.00 | 83% |
| Banner Goldfield Medical Center Apache Junction, AZ · (480) 733-3300 LAB THYROXINE T4 TOTAL File of Mar 2, 2026 · source file | $10.64 | $56.00 | $6.87–$42.00 | 81% |
| Banner Ocotillo Medical Center Chandler, AZ · (480) 256-7000 LAB THYROXINE T4 TOTAL File of Mar 2, 2026 · source file | $10.98 | $56.00 | $6.87–$42.00 | 80% |
| Phoenix Children's Hospital Phoenix, AZ · (602) 933-1000 T4 TOTAL+1 more line at this price File of Jan 1, 2026 · source file | $15.58 | $200.00 | $52.40–$160.00 | 92% |
| Banner Behavioral Health Hospital Scottsdale, AZ · (480) 448-7500 LAB THYROXINE T4 TOTAL File of Mar 2, 2026 · source file | $32.81 | $56.00 | $6.87–$39.20 | 41% |
| Dignity Health - Arizona General Hospital Phoenix, AZ · (623) 584-5100 THYROXINE TOTAL File of Feb 28, 2026 · source file | $36.42 | $159.00 | $4.12–$129.91 | 77% |
| Dignity Health Arizona General Hospital Mesa, AZ · (480) 410-4500 THYROXINE TOTAL File of Feb 28, 2026 · source file | $39.28 | $159.00 | $4.12–$129.91 | 75% |
| College Medical Center - Phoenix Phoenix, AZ · (602) 251-8535 HC ASSAY OF THYROXINE TOTAL+1 more line at this price source file | $57.23 | $57.23 | $6.53–$9.44 | — |
| Mercy Gilbert Medical Center Gilbert, AZ · (480) 728-8000 THYROXINE TOTAL File of Feb 28, 2026 · source file | $68.39 | $278.00 | $6.87–$214.06 | 75% |
| Mercy Gilbert Medical Center Gilbert, AZ · (480) 728-8000 UC THYROXINE TOTAL ER File of Feb 28, 2026 · source file | $71.10 | $289.00 | $6.87–$222.53 | 75% |
| Chandler Regional Medical Center Chandler, AZ · (480) 728-3000 THYROXINE TOTAL File of Feb 28, 2026 · source file | $74.51 | $278.00 | $4.12–$233.52 | 73% |
| St Josephs Hospital and Medical Center Phoenix, AZ · (602) 406-8225 THYROXINE TOTAL File of Feb 28, 2026 · source file | $76.40 | $200.00 | $2.89–$158.00 | 62% |
| Chandler Regional Medical Center Chandler, AZ · (480) 728-3000 UC THYROXINE TOTAL ER File of Feb 28, 2026 · source file | $77.46 | $289.00 | $4.12–$242.76 | 73% |
| PAM Health Rehabilitation Hospital of Surprise Surprise, AZ Total Thyroxine File of Aug 6, 2026 · source file | $142.20 | $142.20 | $4.67–$106.65 | — |
| HonorHealth Deer Valley Medical Center Phoenix, AZ · (623) 879-6100 Hc Thyroxine; Total File of Apr 1, 2026 · source file | $255.00 | $255.00 | — | — |
| HonorHealth Tempe Medical Center Tempe, AZ · (602) 251-8156 Hc Thyroxine; Total File of Apr 1, 2026 · source file | $255.00 | $255.00 | — | — |
| HonorHealth Sonoran Crossing Medical Center Phoenix, AZ · (480) 882-4327 Hc Thyroxine; Total File of Apr 1, 2026 · source file | $255.00 | $255.00 | — | — |
| HonorHealth John C. Lincoln Medical Center Phoenix, AZ · (602) 943-2381 Hc Thyroxine; Total File of Apr 1, 2026 · source file | $255.00 | $255.00 | — | — |
| HonorHealth Scottsdale Thompson Peak Med Center Scottsdale, AZ · (480) 324-7001 Hc Thyroxine; Total File of Apr 1, 2026 · source file | $255.00 | $255.00 | — | — |
| HonorHealth Florence Medical Center Florence, AZ Hc Thyroxine; Total File of Apr 1, 2026 · source file | $255.00 | $255.00 | — | — |
| HonorHealth Scottsdale Osborn Medical Center Scottsdale, AZ · (480) 882-4004 Hc Thyroxine; Total File of Apr 1, 2026 · source file | $255.00 | $255.00 | — | — |
| HonorHealth Four Peaks Medical Center Mesa, AZ · (480) 358-6100 Hc Thyroxine; Total File of Apr 1, 2026 · source file | $255.00 | $255.00 | — | — |
| HonorHealth Scottsdale Shea Medical Center Scottsdale, AZ · (480) 323-3000 Hc Thyroxine; Total File of Apr 1, 2026 · source file | $255.00 | $255.00 | — | — |
Outpatient: lowest $6.33, median $15.58, highest $255.00 — a 40.3× difference within the same market.
As an inpatient, the same code is billed by 30 facilities here, median $23.80. 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 20 of 22 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 2 it is 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.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 84436 ($52.00). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| Hospital | Cash price | File |
|---|---|---|
| Banner Heart Hospital Mesa, AZLAB THYROXINE T4 TOTAL | $4.70 | file |