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    OpenPayerNPI Medicare & MedicaidGrossmont Hospital Corporation
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    Grossmont Hospital Corporation — Billing Profile & Reimbursement Data

    NPI 1528041811 · La Mesa, CA · General Acute Care Hospital

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    Grossmont Hospital Corporation is a general acute care hospital provider located in La Mesa, California. This profile covers 0 Medicare and 449 Medicaid CPT/HCPCS procedure codes, with claims volume, average reimbursement, and total revenue by code, benchmarked against other providers billing the same services.

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    Provider details (source: NPPES NPI Registry)

    FieldValue
    Entity TypeOrganization
    OrganizationGrossmont Hospital Corporation
    Address5555 Grossmont Center Dr
    CityLa Mesa
    StateCA
    ZIP91942
    TaxonomyGeneral Acute Care Hospital
    NPI EnumeratedNovember 21, 2005

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

    Payer SourceTotal Paid
    Medicaid$226.7M
    Medicare$0

    Key Findings

    GROSSMONT HOSPITAL CORPORATION reports no Medicare billing on file and $226.7M in lifetime Medicaid revenue, making its reported activity effectively single‑payer Medicaid at scale. Analysts should treat comparisons against Medicare peers as not applicable for this entity because there is no Medicare footprint to benchmark here.

    Revenue is highly concentrated: the precomputed top three Medicaid codes account for 48.3% of the provider's total Medicaid revenue, driven by 99283 ($34.2M, 20.6%), 0450 ($31.9M, 19.3%), and 99499 ($13.9M, 8.4%). This concentration indicates a small set of services is responsible for nearly half of Medicaid income and should be the focus of utilization and contract reviews.

    The code mix and descriptions point to a heavy emergency-department and acute diagnostic orientation: 99283 is an ED E/M code for low-level medical decision making and appears as the single largest revenue driver, while related ED codes 99284 and 99285 also appear in the top list. High volumes of rapid diagnostic and monitoring services—such as 93005 (ECG), 80053 (CMP), and 85025 (CBC)—support the interpretation that the hospital operates with substantial ED throughput and front-line acute care activity.

    Diagnostic imaging and advanced imaging capacity are significant revenue contributors: 74177 (CT abdomen/pelvis with contrast) generated $12.4M (7.5%), 70450 (CT head without contrast) generated $5.7M (3.4%), and 71275 (CTA chest) generated $1.6M (1.0%). Coupled with PET/CT 78815 ($2.3M, 1.4%), these lines suggest robust on-site radiology and cross-sectional imaging services that support inpatient and ED case management.

    Several codes show the provider is a statewide high-volume reporter for specific services: 99283 ranks #34 of 1570 providers in-state (98th percentile; extreme outlier) and 99499 ranks #3 of 307 (99th percentile; extreme outlier), indicating unusually large Medicaid volumes for those service categories relative to peers. Other codes that are described as extreme outliers or notably above typical—such as 0762 (rank #2 of 159, 99th percentile; extreme outlier) and 93005 (rank #7 of 760, 99th percentile; extreme outlier)—underscore that GROSSMONT is a dominant provider for particular procedural lines in California Medicaid.

    The provider makes notable use of unspecified or catch‑all E/M and other service codes: 99499 ($13.9M, 8.4%) is the third-largest revenue source and 99199 ($7.7M, 4.6%) also appears in the top list, with 99499 ranked as an extreme outlier. This pattern of high revenue from unlisted or miscellaneous codes can reflect a mix of complex, heterogeneous encounters or services that do not map neatly to standard CPT descriptors and should be examined in utilization and coding analyses.

    Infusional and procedure administration activity is material but not dominant: 96374 (IV push single medication) appears with $2.6M (1.6%) and 96375 (sequential IV push) with $2.3M (1.4%), both ranking notably above typical state volume for their categories. When combined with high imaging and laboratory throughput, these figures are consistent with an acute hospital that delivers both diagnostic workups and parenteral treatments in the ED/inpatient setting.

    The provider has been NPI‑enumerated since 2005-11-21 (~21 years ago), indicating a longstanding presence in the market. Combined with $226.7M in lifetime Medicaid revenue and the concentrated, high-volume code mix, this tenure and scale suggest an established acute-care facility with entrenched Medicaid service patterns that will shape payer contracting and network deliberations.

    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.

    449 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    99283The provider sees a patient for an emergency department visit involving evaluation and management (E/M). The visit involves a low level of medical decision making.77,720$440$34.2M
    0450N/A110,850$290$31.9M
    99499Use 99499 to report evaluation and management services for which there is no specific code available.53,160$260$13.9M
    74177The provider performs computed tomography of the abdomen and pelvis with contrast material to diagnose the cause of abdominal or pelvic pain or other abnormalities of the internal organs.18,420$670$12.4M
    99199Use this code to report other medicine services or procedures for which there is no specific code available.11,450$670$7.7M
    80053The lab analyst performs a comprehensive metabolic panel, or CMP test in which he measures the blood level of 14 chemicals the code descriptor lists for the panel.171,210$40$6.8M
    70450The provider performed computed tomography, or CT scanning, of the head or brain, without contrast. He performs the procedure to diagnose any brain or intracranial abnormalities.22,910$250$5.7M
    0762N/A11,660$480$5.6M
    0360N/A5,990$830$5M
    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…74,850$60$4.3M

    Showing 1–10 of 449

    • More pages

    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

    449 rows

    CPT/HCPCS CodeDescriptionRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    0450N/A4845016,140$90$3.6M
    0121N/A1770130$4,600$2.6M
    77386Intensity modulated radiation treatment delivery (IMRT), includes guidance and tracking, when performed; complex1420880$600$2.4M
    A0429Ambulance service, basic life support, emergency transport (bls-emergency)3653901,270$220$1.5M
    0206N/A174080$2,760$1.1M
    99283The provider sees a patient for an emergency department visit involving evaluation and management (E/M). The visit involves a low level of medical decision making.341,570680$110$1.1M
    99285The provider sees a patient for an emergency department visit involving evaluation and management (E/M). The visit involves a high level of medical decision making.2361,300510$100$943K
    U0003Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, making use of high…69750950$50$890K
    99284The provider sees a patient for an emergency department visit involving evaluation and management (E/M). The visit involves a moderate level of medical decision making.2551,400470$80$884.5K
    99281The provider sees a patient for the lowest level emergency department visit.2504301,140$90$769.9K

    Showing 1–10 of 449

    • More pages

    Related Providers

    Other providers that share a Tax Identification Number (TIN) with Grossmont Hospital Corporation, ranked by combined Medicare and Medicaid revenue.

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Brian MillerCAPsychiatry Physician$54.6K$0

    Nearby Providers

    Other providers in the same ZIP code as Grossmont Hospital Corporation, ranked by combined Medicare and Medicaid revenue.

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Hassan Kafri Md, Inc.CAInterventional Cardiology Physician$0$22.8M
    Grossmont Surgery Center LPCAAmbulatory Surgical Clinic/Center$1.2M$6M
    Paul DatoCAUrology Physician$2M$0
    Kai ZuCAHematology & Oncology Physician$1.7M$2K
    Igor MedicCAHematology & Oncology Physician$1.3M$0
    Reema BatraCAHematology & Oncology Physician$1.2M$1.5K
    Nassir AzimiCACardiovascular Disease Physician$1.1M$0
    Hassan KafriCACardiovascular Disease Physician$945.1K$6.5K
    Arudi PrabhakarCASpecialist$845.6K$0
    Scott BrownCAUrology Physician$577.1K$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.

    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
    Grossmont Hospital Corporation — 14 of 25 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — California