Free T4 thyroid test cost in California

Prices at 174 hospitals in California, from their machine-readable files. Here the median cash price is $68 — about the US median ($69), roughly 7.6× the Medicare rate.

Lowest cash prices

HospitalLocationCashInsurerCMS ratingER waitReadmit
St Mary Medical Center Long Beach, CA $11 $11 ★ 5/5 150 min —
Community Hospital of San Bernardino San Bernardino, CA $11 $15 ★ 3/5 153 min —
Stanford Health Care Tri-Valley Pleasanton, CA $12 $9 ★ 5/5 199 min —
Stanford Health Care Stanford, CA $12 $9 ★ 5/5 276 min —
Mercy Medical Center of Mt Shasta Mount Shasta, CA $12 $9 ★ 4/5 89 min —
St Elizabeth Community Hospital Red Bluff, CA $13 $9 ★ 4/5 133 min —
Doctors Medical Center Modesto, CA $13 — ★ 1/5 221 min —
Pih Health Downey Hospital Downey, CA $13 $11 ★ 4/5 242 min —
Lucile Salter Packard Children's Hsp at Stanford Palo Alto, CA $15 $222 — — —
Mark Twain Medical Center San Andreas, CA $15 $17 ★ 3/5 123 min —
Trinity Hospital Weaverville, CA $16 $20 — 69 min —
San Gorgonio Memorial Hospital Banning, CA $16 $9 ★ 3/5 194 min —
Fresno Surgical Hospital Fresno, CA $16 $9 — — —
UCI Health-Orange Orange, CA $17 $12 ★ 4/5 318 min —
UCI Health-Los Alamitos Los Alamitos, CA $17 $12 ★ 1/5 238 min —
UCI Health-Fountain Valley Fountain Valley, CA $17 $12 ★ 2/5 158 min —
Banner Lassen Medical Center Susanville, CA $18 $15 ★ 3/5 116 min —
El Camino Health Mountain View, CA $22 — ★ 4/5 163 min —
Pioneers Memorial Healthcare District Brawley, CA $23 $10 ★ 3/5 191 min —
College Medical Center Long Beach, CA $23 $9 ★ 3/5 322 min —
College Hospital Cerritos, CA $23 $9 — — —
Glendora Hospital Glendora, CA $23 $9 — — —
Sharp Mesa Vista Hospital San Diego, CA $24 $22 — — —
Community Memorial Hospital-Ojai Ojai, CA $24 $38 — 114 min —
San Joaquin General Hospital French Camp, CA $26 $9 ★ 2/5 213 min —

CMS rating = overall hospital star rating (1–5); ER wait = median minutes in the emergency department; Readmit = 30-day readmission rate (lower is better) — all from Medicare’s Care Compare; “—” = not reported. Data last updated October 2026. Prices from hospitals’ machine-readable files (45 CFR §180); Medicare benchmark from CMS PFS/CLFS/IPPS. Prices below 15% of the median are excluded as likely partial or mis-coded charges. Estimates — confirm with the hospital. Report an incorrect price.

Price comparison (median)

Chargemaster (list price)
$136
Cash / self-pay
$68
Insurer-negotiated
$9
Medicare pays
$9
$9$231
Median cash $68  ·  Medicare $9  ·  bar = typical cash range (10th–90th percentile)
Is this a fair price?
1× Medicarefair ≈2×5×+

Typical cash price here is $68 — about 7.6× the Medicare rate ($9). High vs Medicare. A fair cash price is usually within ~2× Medicare ($18).

💡 Asking for the cash price instead of the $136 list price could save about $68 (50%).

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Rough estimate from this procedure’s median insurer-negotiated rate. Your actual cost depends on your plan — confirm with your insurer.

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