Contra Costa County
Contra Costa County was paid $874K by Medicaid between Jan 2018 and Dec 2024, across 23 billing codes. Its largest line is 87491, Infectious agent detection by nucleic acid; Chlamydia trachomatis, amplified probe — 40% of everything it billed.
MARTINEZ, CA 94553
Next to other Clinical Medical Laboratory providers in California
Peers share this provider's primary NPPES type and state. Size alone says nothing about billing quality: a big agency or a hospital system is expected to sit far above the median.
Auditor's notes
Automated statistical signals. Not evidence of fraud — how these are computed.
Paid by month
By year, as a table
| Year | Claims | Paid | |
|---|---|---|---|
| 2018 | 8,480 | $178K | |
| 2019 | 7,599 | $161K | |
| 2020 | 2,761 | $48K | |
| 2021 | 4,558 | $89K | |
| 2022 | 5,744 | $65K | |
| 2023 | 32,537 | $189K | |
| 2024incomplete | 33,795 | $144K |
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 87491 | Infectious agent detection by nucleic acid; Chlamydia trachomatis, amplified probe | 40% | 23,090 | 22,339 | $353K |
| 87591 | Infectious agent detection by nucleic acid; Neisseria gonorrhoeae, amplified probe | 38% | 23,010 | 22,245 | $334K |
| 86762 | 3.8% | 2,908 | 2,714 | $33K | |
| 87661 | Infectious agent detection by nucleic acid; Trichomonas vaginalis, amplified probe | 3.8% | 2,936 | 2,932 | $33K |
| 87389 | Infectious agent antigen detection by immunoassay technique, HIV-1 antigen with HIV-1 and HIV-2 antibodies | 3.8% | 11,707 | 11,690 | $33K |
| 86803 | 2.9% | 11,874 | 11,705 | $25K | |
| 87340 | 2.9% | 6,213 | 6,009 | $25K | |
| 86592 | 2.0% | 9,401 | 9,125 | $17K | |
| 86787 | 1.0% | 1,236 | 1,146 | $9K | |
| 87536 | <1% | 758 | 749 | $4K | |
| 87209 | <1% | 174 | 135 | $1K | |
| 86704 | <1% | 523 | 520 | $1K |
11 more codes
| 86706 | <1% | 722 | $945.18 | |
| 87177 | <1% | 206 | $863.42 | |
| 86708 | <1% | 441 | $805.69 | |
| 86480 | <1% | 15 | $743.10 | |
| 87633 | Infectious agent detection by nucleic acid, respiratory virus, 12-25 targets | <1% | 53 | $212.40 |
| 87798 | Infectious agent detection by nucleic acid; not otherwise specified, amplified probe, each organism | <1% | 35 | $108.52 |
| 86705 | <1% | 52 | $55.98 | |
| 87116 | <1% | 19 | $49.26 | |
| 87486 | 0% | 31 | $0.00 | |
| 87517 | 0% | 39 | $0.00 | |
| 87581 | 0% | 31 | $0.00 |
Claims and beneficiary counts add up across code × month rows, so one patient seen every month counts many times. Rows with fewer than 12 claims are suppressed by HHS, so small lines can be missing.
Who's on the registration
| Provider | Location | Paid |
|---|---|---|
| Contra Costa County | Martinez, CA | $536.98M |
| Contra Costa County | Pittsburg, CA | $202.20M |
| Contra Costa County | San Pablo, CA | $170.81M |
| Contra Costa County | Martinez, CA | $100.64M |
| Contra Costa County | Martinez, CA | $90.59M |
| Contra Costa County | Concord, CA | $83.05M |
| Contra Costa County | Antioch, CA | $65.79M |
| Contra Costa County | Martinez, CA | $64.10M |
| Contra Costa County | Brentwood, CA | $45.11M |
| Contra Costa County | Concord, CA | $33.14M |
| Lone Star Ambulance 1, LLC | Corpus Christi, TX | $31.57M |
| Contra Costa County | Martinez, CA | $30.20M |
| Contra Costa County | San Pablo, CA | $28.69M |
| Contra Costa County | Pittsburg, CA | $24.26M |
| Contra Costa County | Concord, CA | $19.55M |
| Contra Costa County | Antioch, CA | $17.16M |
| Contra Costa County | Martinez, CA | $15.98M |
| Contra Costa County | North Richmond, CA | $14.20M |
| Contra Costa County | San Pablo, CA | $13.26M |
| Contra Costa County | Bay Point, CA | $10.44M |
Matched on the authorized-official name exactly as entered in NPPES. A common name can match unrelated people.