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    OpenPayerNPI Medicare & MedicaidAndrej Zajac
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    Andrej Zajac — Billing Profile & Reimbursement Data

    NPI 1316929623 · Munster, IN · Radiation Oncology Physician

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    Andrej Zajac is a radiation oncology physician provider located in Munster, Indiana. This profile covers 19 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
    OrganizationAndrej Zajac
    Address901 Macarthur Blvd
    CityMunster
    StateIN
    ZIP46321
    TaxonomyRadiation Oncology Physician
    NPI EnumeratedNovember 14, 2005

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

    Payer SourceTotal Paid
    Medicare$188.8K
    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.

    19 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    77427Radiation therapy utilizes ionizing radiation beams that are directed at cancerous cells in order to destroy them. The radiation, damages the DNA (the genetic material) in the cell, thus preventing…350$140$48.6K
    77301Intensity modulated radiotherapy (IMRT) uses advanced computer technology to deliver very precise radiation beams that target and destroy the cancerous cells while avoiding the surrounding healthy…70$310$23.2K
    77263The provider decides the location and the number of ports (the points for the radiation beams to enter the body), the design and location of the shielding blocks, and the modes of therapy (e.g., arc…120$120$14.5K
    77338In this procedure, the provider participates in the design and construction of one or more multi–leaf collimator, MLC, devices for intensity modulated radiation therapy, IMRT. IMRT is a radiotherapy…80$170$13.4K
    77334The provider designs, develops, and constructs special and customized devices for proper radiation dose delivery and protection of nearby healthy tissues.290$40$12.6K
    77300Radiation therapy is one of the most effective treatment methods for cancerous tumors. Due to its negative side effects like damage to the healthy cells, radiation therapy involves thorough planning…480$20$11.6K
    77295Computer–generated radiographic reconstruction and volumetric dose calculation are used to improve accuracy of external beam radiation administration. Documentation may include 3D volume…70$170$11.1K
    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…90$130$10.9K
    77435In this procedure, the provider manages the complete course of stereotactic body radiotherapy treatment in which he uses a three–dimensional coordinate system to locate small targets or lesions…20$470$7.1K
    77290Before starting radiation therapy, a physician needs to know the location and size of the cancerous tumor, the radiation doses required to treat the tumor, and the positioning of the radiation beams…110$60$6.7K

    Showing 1–10 of 19

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 19 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    19 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    77280239050$180$41.4K
    7742717110180$140$28.9K
    77301138040$570$27.3K
    7701482110500$50$27.1K
    992149,01710,540110$80$15.5K
    77338138040$220$11.6K
    773341390170$50$9.6K
    7726369070$130$8.9K
    G60021560200$30$8.6K
    992231,9493,08040$120$8.2K

    Showing 1–10 of 19

    Related Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Community Care Network IncINFamily Medicine Physician$0$33.9M
    Mohamad KassarINHematology & Oncology Physician$4.7M$0
    Shruti SinghINHematology & Oncology Physician$1.1M$0
    Sulman HussainINCardiovascular Disease Physician$846.9K$107.7K
    Virag DandekarINRadiation Oncology Physician$950.4K$0
    George SloanINHematology & Oncology Physician$685K$0
    Guneesh SalujaINEmergency Medicine Physician$119K$494.6K
    William SpearILClinical Cardiac Electrophysiology Physician$523.6K$10.3K
    David StewartILInterventional Cardiology Physician$428.7K$0
    Andrea DeleoINNeurology Physician$427.4K$0

    Nearby Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Munster Medical Research Foundation IncINGeneral Acute Care Hospital$0$23.6M
    Munster Radiology Group PCINDiagnostic Radiology Physician$0$6.4M
    Preference Health Services Inc.INHome Health Agency$0$6.1M
    Nwi Urgent Care, LLCINUrgent Care Clinic/Center$0$4.4M
    Childrens & Family Medicine Clinic PCINPrimary Care Clinic/Center$0$4.2M
    UrgentdentINDental Clinic/Center$0$4M
    Chest Physician Consultants, LtdINMulti-Specialty Clinic/Center$0$3.9M
    Cep America LLCINEmergency Medicine Physician$0$3.5M
    Midwest Emergency Associates-munster, LLCINEmergency Medicine Physician$0$3.2M
    Jeffrey T. Meister, Dds, LLCINGeneral Practice Dentistry$0$3M

    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. Indiana Distribution
    Andrej Zajac — 1 of 19 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Indiana