Homocysteine test cost in Seattle, WA
In Seattle-Tacoma-Bellevue, WA, 15 hospitals list a cash price for Homocysteine blood test: from $17.10 to $161.10, with a median of $107.90. The lowest listed price is at Overlake Medical Center & Clinics — $90.80 less than the median here. Across Washington, the median is $117.00 at 33 hospitals.
Cash prices at 15 facilities across 13 cities for code 83090, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Feb 28, 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 Seattle-Tacoma-Bellevue, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Overlake Medical Center & Clinics lowest Bellevue, WA Hc Homocyst(E)Ine, Plasma | $17.10 | $34.20 | — | 50% | Apr 1, 2026 source file |
| Overlake Medical Center & Clinics Bellevue, WA Hc Assay Of Homocystine Lab3188 | $20.24 | $40.47 | — | 50% | Apr 1, 2026 source file |
| Virginia Mason Medical Center Seattle, WA ASSAY OF HOMOCYSTINE | $58.14 | $114.00 | $68.40–$91.20 | 49% | — source file |
| Saint Clare Hospital Lakewood, WA HC HOMOCYSTINE PLASMA QUANT | $88.02 | $305.34 | $17.92–$229.01 | 71% | Feb 28, 2026 source file |
| Franciscan Health System Gig Harbor, WA HC HOMOCYSTINE PLASMA QUANT | $92.87 | $305.34 | $17.92–$229.01 | 70% | Feb 28, 2026 source file |
| Highline Medical Center Burien, WA HC HOMOCYSTINE PLASMA QUANT | $93.24 | $305.34 | $17.92–$274.81 | 69% | Feb 28, 2026 source file |
| St Francis Community Hospital Federal Way, WA HC HOMOCYSTINE PLASMA QUANT | $95.83 | $305.34 | $17.92–$229.01 | 69% | Feb 28, 2026 source file |
| Franciscan Health System Tacoma, WA HC HOMOCYSTINE PLASMA QUANT | $101.13 | $305.34 | $17.92–$229.01 | 67% | Feb 28, 2026 source file |
| Enumclaw Regional Hospital Association Enumclaw, WA HC HOMOCYSTINE PLASMA QUANT | $107.90 | $305.34 | $17.92–$274.81 | 65% | Feb 28, 2026 source file |
| Kaiser Permanente Central Hospital E Seattle, WA HOMOCYSTINE ASSAY | $110.40 | $138.00 | $14.00–$50.00 | 20% | Apr 1, 2026 source file |
| Overlake Medical Center & Clinics Bellevue, WA Hc Assay Of Homocystine Lab6183 | $116.72 | $233.45 | — | 50% | Apr 1, 2026 source file |
| Swedish Health Services Issaquah, WA HC HOMOCYSTINE PLASMA (HYPERC) | $121.92 | $254.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Health Services Seattle, WA HC HOMOCYSTINE PLASMA (HYPERC) | $121.92 | $254.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Health Services Seattle, WA HC ASSAY OF HOMOCYSTEINE LAB | $121.92 | $254.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Edmonds Edmonds, WA HC ASSAY OF HOMOCYSTEINE LAB | $121.92 | $254.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Health Services Seattle, WA HC ASSAY OF HOMOCYSTEINE LAB | $121.92 | $254.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Health Services Seattle, WA HC HOMOCYSTINE PLASMA (HYPERC) | $121.92 | $254.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Health Services Issaquah, WA HC ASSAY OF HOMOCYSTEINE LAB | $121.92 | $254.00 | — | 52% | Apr 1, 2026 source file |
| Public Hospital Dist No 1 Skagit dba Cascade Valley Hospital Arlington, WA HC HOMOCYSTEIN LEVEL | $123.20 | $154.00 | $17.92–$138.60 | 20% | — source file |
| Providence Health And Services - Washington Everett, WA HC ASSAY OF HOMOCYSTEINE LAB | $132.08 | $254.00 | — | 48% | Apr 1, 2026 source file |
| Seattle Children's Hospital Seattle, WA Homocysteine, Total | $161.10 | $161.10 | $40.60–$154.66 | — | — source file |
Outpatient: lowest $17.10, median $107.90, highest $161.10 — a 9.4× difference within the same market.
As an inpatient, the same code is billed by 14 facilities here, median $104.52. 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 8 of 10 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 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 homocysteine test measures an amino acid that rises with low vitamin B12 or folate and in some inherited conditions.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.