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    OpenPayerNPI Medicare & MedicaidWestmed Ambulance Inc
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    Westmed Ambulance Inc — Billing Profile & Reimbursement Data

    NPI 1053453951 · Compton, CA · Ambulance

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    Westmed Ambulance Inc is a ambulance provider located in Compton, California. This profile covers 4 Medicare and 11 Medicaid CPT/HCPCS procedure codes, with claims volume, average reimbursement, and total revenue by code, benchmarked against other providers billing the same services.

    Provider details (source: NPPES NPI Registry)

    FieldValue
    Entity TypeOrganization
    OrganizationWestmed Ambulance Inc
    Address2020 S Central Ave
    CityCompton
    StateCA
    ZIP90220
    TaxonomyAmbulance
    NPI EnumeratedFebruary 14, 2007

    Lifetime revenue by payer source (source: CMS Medicare & Medicaid claims data)

    Payer SourceTotal Paid
    Medicaid$40M
    Medicare$6.3M

    Key Findings

    Service mix is dominated by emergency ambulance transports: the provider’s billing profile is primarily advanced life support and basic life support emergency transports, with A0427 and A0429 the obvious operational core. Both Medicare and Medicaid top-line revenues are driven by these transport codes, indicating an operation focused on high-volume emergency ground transport rather than elective or non-transport services.

    Medicare revenue is highly concentrated in just a few codes: the top three Medicare codes account for 98.7% of the provider’s total Medicare revenue, led by A0427 ($4.6M, 72.8%) and A0429 ($1.2M, 19.7%), with A0425 contributing $392.3K (6.2%). This concentration means the provider’s Medicare performance is essentially tied to volume and reimbursement for a very narrow set of ground-ambulance services.

    Medicaid revenue shows the same narrow dependence: the top three Medicaid codes account for 98.9% of total Medicaid revenue, with A0427 at $24.7M (61.6%), A0429 at $13.3M (33.1%), and A0425 at $1.7M (4.3%). Medicaid is the dominant payer by scale for this provider and the bulk of operating cashflow appears to come from those two transport codes.

    The provider’s payer mix is effectively Medicaid-dominant: total Medicaid revenue is $40M compared with total Medicare revenue of $6.3M, so Medicaid accounts for the vast majority of reported lifetime public-payer receipts. That skew implies contracting, utilization management, and reimbursement changes in Medicaid will materially affect the business more than Medicare shifts.

    For Medicare competitive standing, A0427 is an extreme national outlier (rank #39 of 6841, 99th percentile), and A0429 also ranks very high nationally (rank #100 of 7808, 99th percentile, described as notably above typical national volume). By contrast A0425 (ground mileage) sits at a more typical national volume position (rank #337 of 8934, 96th percentile). These ranks indicate the provider is a major national outlier for advanced life-support emergency transports under Medicare, not a modest participant.

    Within California Medicaid, the provider is a top-tier performer on the same transport lines: A0427 ranks #9 of 248 in-state (97th percentile) and A0429 ranks #9 of 386 in-state (98th percentile), both described as notably above typical state volume. A0425 and A0424 show high in-state ranks but contribute much smaller shares of revenue (A0425 $1.7M, 4.3%; A0424 $293.9K, 0.7%), implying statewide dominance in emergency transport volumes but more typical activity for ancillary mileage and attendant codes.

    The NPI was enumerated on 2007-02-14 (~19 years ago), indicating long tenure in the public-payer system. That longevity, combined with outsized ranks for core transport codes, suggests an established ambulance operator with sustained high volumes on emergency ALS/BLS services over many years.

    Ancillary and non-transport codes contribute negligible revenue relative to the transport lines: examples include 93005 ($48.7K, 0.1% of Medicaid revenue) and A0999 ($21.7K, 0.1% of Medicaid revenue), both described as typical, unremarkable volumes in-state. Operationally this reinforces that nearly all clinical and billing activity generating public-payer revenue is concentrated in emergency ground-transport codes rather than in ancillary monitoring or supply billing.

    Medicare: Total Revenue Breakdown by CPT/HCPCS Code

    Medicare revenue breakdown by CPT/HCPCS procedure code.

    View: Bar Chart1 / 2

    Medicare: Complete Services Breakdown

    The CPT/HCPCS codes generating the most Medicare revenue for this provider.

    4 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    A0427Ambulance service, advanced life support, emergency transport, level 1 (als 1 - emergency)10,110$450$4.6M
    A0429Ambulance service, basic life support, emergency transport (bls-emergency)3,250$380$1.2M
    A0425Ground mileage, per statute mile56,040$10$392.3K
    A0433Advanced life support, level 2 (als 2)120$660$80.2K

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 4 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    4 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    A042711210620$450$997.4K
    A042914220250$380$335.6K
    A0425382608,650$10$185.2K
    A043398040$660$46.9K

    Medicaid: Total Revenue Breakdown by CPT/HCPCS Code

    Medicaid revenue breakdown by year and by CPT/HCPCS procedure code, including monthly billing trends and the top codes driving revenue.

    View: By Year1 / 3

    Medicaid: Complete Services Breakdown

    Every CPT/HCPCS code this provider has billed to Medicaid, with claims volume, average payment, and total revenue.

    11 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    A0427Ambulance service, advanced life support, emergency transport, level 1 (als 1 - emergency)112,210$220$24.7M
    A0429Ambulance service, basic life support, emergency transport (bls-emergency)62,290$210$13.3M
    A0425Ground mileage, per statute mile171,820$10$1.7M
    A0424Extra ambulance attendant, ground (als or bls) or air (fixed or rotary winged); (requires medical review)24,490$10$293.9K
    93005The provider records the electrical conduction of the heart to examine any abnormality in its functioning, based on signals from at least 12 leads, wires that connect the recording device to…8,110$10$48.7K
    A0422Ambulance (als or bls) oxygen and oxygen supplies, life sustaining situation6,390$10$44.8K
    A0999Unlisted ambulance service21,700$1$21.7K
    A0433Advanced life support, level 2 (als 2)70$200$14.8K
    A0398Als routine disposable supplies3,410$1$3.4K
    A0382Bls routine disposable supplies1,420$1$1.4K

    Showing 1–10 of 11

    Medicaid: Competitive Analysis & Benchmarks

    How this provider's Medicaid billing volume and revenue compare to other California providers billing the same CPT/HCPCS codes.

    Full comparison — all codes billed, vs. California median

    11 rows

    CPT/HCPCS CodeDescriptionRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    A0427Ambulance service, advanced life support, emergency transport, level 1 (als 1 - emergency)92502,420$220$3.7M
    A0429Ambulance service, basic life support, emergency transport (bls-emergency)93901,270$220$1.5M
    A0425Ground mileage, per statute mile115803,120$30$963.2K
    93005The provider records the electrical conduction of the heart to examine any abnormality in its functioning, based on signals from at least 12 leads, wires that connect the recording device to…2387601,930$20$196K
    A0424Extra ambulance attendant, ground (als or bls) or air (fixed or rotary winged); (requires medical review)480520$20$112.5K
    A0999Unlisted ambulance service8100600$20$111.4K
    A0433Advanced life support, level 2 (als 2)2540170$210$101.5K
    93041The provider records the electrical conduction of the heart to examine any abnormality in its functioning using a maximum of three leads. This code represents the technical component of the service…93100890$10$73.5K
    A0422Ambulance (als or bls) oxygen and oxygen supplies, life sustaining situation211401,000$10$33.6K
    A0382Bls routine disposable supplies1020770$1$7.6K

    Showing 1–10 of 11

    Related Providers

    Other providers that share a Tax Identification Number (TIN) with Westmed Ambulance Inc, ranked by combined Medicare and Medicaid revenue.

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Kma Emergency Services, Inc.CALand Ambulance$1.4M$4.6M

    Nearby Providers

    Other providers in the same ZIP code as Westmed Ambulance Inc, ranked by combined Medicare and Medicaid revenue.

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Scott BinderCAAnatomic Pathology Physician$428.6K$0

    Frequently Asked Questions

    References

    1. 1.Medicare Physician & Other Practitioner by Provider and Service. CMS.gov.Provider-level Medicare Part B utilization and payment data.
    2. 2.NPPES NPI Registry. CMS.gov.National Provider Identifier registry used for provider enumeration and taxonomy metadata.

    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

    Medicare Revenue by CPT/HCPCS Code
    Claims Volume vs. California Distribution
    Westmed Ambulance Inc — 1 of 4 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — California
    Medicaid Revenue by Year vs. California Providers
    7 of 7 years billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Claims Volume vs. California Distribution
    Westmed Ambulance Inc — 4 of 11 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — California