Thyroid-stimulating hormone (TSH) blood test in Santa Rosa-Petaluma, CA — inpatient
In Santa Rosa-Petaluma, CA, 4 hospitals list a cash price for Thyroid-stimulating hormone (TSH) blood test as an inpatient: from $52.50 to $155.12, with a median of $137.70. The lowest listed price is at St Joseph Health Northern California LLC.
Cash prices at 4 facilities across 3 cities for code 84443, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 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 Santa Rosa-Petaluma, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| St Joseph Health Northern California LLC lowest Santa Rosa, CA HC TSH | $52.50 | $102.95 | 49% | Apr 1, 2026 source file |
| NorCal HealthConnect LLC Petaluma, CA HC TSH | $52.50 | $102.95 | 49% | Apr 1, 2026 source file |
| NorCal HealthConnect LLC Healdsburg, CA HC TSH REFLEX TO FT4 | $137.70 | $270.00 | 49% | Apr 1, 2026 source file |
| NorCal HealthConnect LLC Healdsburg, CA HC TSH | $137.70 | $270.00 | 49% | Apr 1, 2026 source file |
| NorCal HealthConnect LLC Healdsburg, CA HC ASSAY OF THYROID STIMULATING HORMONE TSH LAB | $137.70 | $270.00 | 49% | Apr 1, 2026 source file |
| Kaiser Foundation Hospital - Santa Rosa Santa Rosa, CA ASSAY OF THYROID STIMULATING HORMONE TSH | $155.12 | $277.00 | 44% | — source file |
Inpatient: lowest $52.50, median $137.70, highest $155.12 — a 3.0× difference within the same market.
As an outpatient, the same code is billed by 4 facilities here, median $136.68 — that is the price to compare if you are not being admitted.
What it is
A TSH test measures thyroid-stimulating hormone in the blood. It is the most common first test for an underactive or overactive thyroid and is used to monitor thyroid medicine doses.
What the price covers
The price usually covers running the TSH test only. The blood draw and any follow-up thyroid tests, such as free T4, are billed separately.
4 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 84443 ($82.80). 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.
| St Joseph Health Northern California LLC Santa Rosa, CAHC TSH REFLEX TO FT4 | $4.34 | file |
| St Joseph Health Northern California LLC Santa Rosa, CAHC ASSAY OF THYROID STIMULATING HORMONE TSH LAB | $4.34 | file |
| NorCal HealthConnect LLC Petaluma, CAHC TSH REFLEX TO FT4 | $4.34 | file |
| NorCal HealthConnect LLC Petaluma, CAHC ASSAY OF THYROID STIMULATING HORMONE TSH LAB | $4.34 | file |