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    v1.0.28
    OpenPayerNPI Medicare & MedicaidMichael Koumjian
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    Michael Koumjian — Billing Profile & Reimbursement Data

    NPI 1366403321 · La Mesa, CA · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician

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    Michael Koumjian is a thoracic surgery (cardiothoracic vascular surgery) physician provider located in La Mesa, California. This profile covers 21 Medicare and 0 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 TypeIndividual
    OrganizationMichael Koumjian
    Address5525 Grossmont Center Dr
    CityLa Mesa
    StateCA
    ZIP91942
    TaxonomyThoracic Surgery (Cardiothoracic Vascular Surgery) Physician
    NPI EnumeratedMarch 30, 2006

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

    Payer SourceTotal Paid
    Medicare$116.3K
    Medicaid$0

    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.

    21 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    99232The provider sees a patient for a subsequent hospital inpatient or observation care visit involving evaluation and management (E/M). The visit involves a moderate level of medical decision making or…480$60$30.5K
    99223The provider sees a patient for an initial hospital inpatient or observation care visit involving evaluation and management (E/M). The visit involves a high level of medical decision making or the…150$140$20.8K
    33533Coronary artery bypass, using arterial graft(s); single arterial graft20$850$14.4K
    33361The provider uses a catheter to insert an aortic valve replacement through the lumen of a catheter, in a service known as TAVI or TAVR. This code is specific to inserting the valve using a…20$590$13.5K
    93452This procedure involves catheter placement in a left sided, systemic cardiac chambers left ventricle or left atrium. It also includes left ventricular injection and measuring left ventricular…60$170$9.4K
    99205The provider sees a new patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a high level of medical decision making, and/or the provider…20$180$4K
    93314In this procedure, the provider performs transesophageal echocardiography, TEE, with interpretation of the overall function of the heart’s valves and chambers and determines the presence of many…50$70$3.1K
    99215The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a high level of medical decision making, and/or the…20$150$3K
    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.40$70$2.7K
    99213The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a low level of medical decision making, and/or the…30$70$2.2K

    Showing 1–10 of 21

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 21 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    21 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    3353312120020$880$21.2K
    3336111821030$600$21.1K
    992321,43712,28090$70$16.3K
    9921512,24415,36050$130$14.4K
    9921326,50234,66080$70$13.2K
    741771,5652,09090$100$12.9K
    992231,70813,19050$140$11.3K
    938801,6932,23040$130$10.7K
    7557419726040$150$10.5K
    939701,8192,29040$100$8.4K

    Showing 1–10 of 21

    Related Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Harbinder BrarCAMaternal & Fetal Medicine Physician$0$31.3M
    Geoffrey TrenkleCAFacial Plastic Surgery Physician$517.4K$6.5M
    Hosea BrownCAAllergy Physician$71.7K$6.6M
    Huan LeCAPulmonary Disease Physician$335.6K$4.6M
    Walter NahmCADermatology Physician$3.1M$0
    Mehran MoussavianCAInterventional Cardiology Physician$3M$67.3K
    Alexander SalloumCAVascular Surgery Physician$2.8M$0
    Navid EzraCADermatology Physician$1.8M$975.2K
    Michael SamuelCARetina Specialist (Ophthalmology) Physician$2.2M$0
    Michael DavisCARetina Specialist (Ophthalmology) Physician$2.1M$5.2K

    Nearby Providers

    Other providers in the same ZIP code as Michael Koumjian, ranked by combined Medicare and Medicaid revenue.

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Grossmont Hospital CorporationCAGeneral Acute Care Hospital$0$226.7M
    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

    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
    Michael Koumjian — 2 of 21 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — California