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    OpenPayerNPI Medicare & MedicaidJohn Gundzik
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    John Gundzik — Billing Profile & Reimbursement Data

    NPI 1659390995 · Bakersfield, CA · Diagnostic Radiology Physician

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    John Gundzik is a diagnostic radiology physician provider located in Bakersfield, California. This profile covers 45 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
    OrganizationJohn Gundzik
    Address2301 Bahamas Dr
    CityBakersfield
    StateCA
    ZIP93309
    TaxonomyDiagnostic Radiology Physician
    NPI EnumeratedJuly 18, 2006

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

    Payer SourceTotal Paid
    Medicare$484K
    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.

    45 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    A9584Iodine 1-123 ioflupane, diagnostic, per study dose, up to 5 millicuries60$2,210$123.5K
    78608In this diagnostic procedure, the provider performs PET, positron emission tomography, a type of nuclear imaging test. It tells how the brain is functioning with information on metabolism, such as…50$1,340$65.4K
    70551The provider uses magnetic resonance imaging, or MRI, to examine the brain and brain stem. The provider does not administer contrast for this exam.340$150$51.6K
    70553In this procedure, the provider performs a magnetic resonance imaging, or MRI, study of the brain including the brain stem. He performs this procedure without using contrast material. He then follows…120$270$31.1K
    72148In this diagnostic procedure, the provider performs magnetic resonance imaging (MRI) of the lumbar spinal canal and contents without using contrast.180$160$28.6K
    72141In this diagnostic procedure, the provider performs a magnetic resonance imaging (MRI) study of the cervical spinal canal and contents without using contrast material.190$150$28K
    A9552Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries60$290$18.4K
    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.290$60$18K
    78803The provider uses a nuclear imaging test called SPECT to localize a tumor, inflammatory process, or radioactive tracer distribution. Vascular flow and blood pool imaging are included if performed.…60$310$17.2K
    77080The provider performs an imaging procedure, called dual–energy X–ray absorptiometry (DXA), of one or more bony areas on the trunk to determine the bone mineral density (BMD) and whether the patient…400$40$16.2K

    Showing 1–10 of 45

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 45 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    45 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    A958482040$2,190$107.2K
    A955217633070$280$34.9K
    7860875020$980$34.5K
    784521,0311,19050$250$22.8K
    705532221,00050$150$13K
    741771,7852,09090$100$12.9K
    721482021,35060$110$11.5K
    70551301,33060$90$7.5K
    741761,5231,95070$80$7.2K
    704505332,040150$30$7K

    Showing 1–10 of 45

    Related Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Kern Radiology Medical Group, IncCADiagnostic Radiology Physician$0$38.7M
    Vinh-linh NguyenCAHematology & Oncology Physician$11.5M$0
    Mark LeFLDiagnostic Radiology Physician$10.7M$0
    Nathan SteinleCARetina Specialist (Ophthalmology) Physician$9.5M$0
    Amiel MoshfeghCAVascular & Interventional Radiology Physician$7.6M$0
    Alessandro CastellarinCARetina Specialist (Ophthalmology) Physician$5.4M$0
    Dilsher DhootCARetina Specialist (Ophthalmology) Physician$5.4M$0
    Khaled TawansyCAOphthalmology Physician$2.8M$2.4M
    Daniel LearnedCARetina Specialist (Ophthalmology) Physician$5.1M$0
    Dante PieramiciCARetina Specialist (Ophthalmology) Physician$3.7M$0

    Nearby Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Omni Family HealthCAFederally Qualified Health Center (FQHC)$0$84.8M
    Oh Dmd IncCAGeneral Practice Dentistry$0$38M
    County Of KernCAAdult Mental Health Clinic/Center$0$36.6M
    Infusion And Clinical Services, IncCAInternal Medicine Physician$0$29.2M
    Stockdale Podiatry Group IncCAFoot & Ankle Surgery Podiatrist$0$27.5M
    Emergency Physicians Urgent Care IncCAUrgent Care Clinic/Center$0$27M
    Truxtun Surgery Center IncCAAmbulatory Surgical Clinic/Center$961.8K$3.9M
    Silver Summit Medical CorporationCAAmbulatory Surgical Clinic/Center$332.4K$2.2M
    Jeffrey CrowleyCADermatology Physician$2.3M$0
    Ravi PatelCASpecialist$2M$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
    John Gundzik — 2 of 25 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — California