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    OpenPayerNPI Medicare & MedicaidHakan Kaya
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    Hakan Kaya — Billing Profile & Reimbursement Data

    NPI 1255320974 · Spokane, WA · Medical Oncology Physician

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    Hakan Kaya is a medical oncology physician provider located in Spokane, Washington. This profile covers 44 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
    OrganizationHakan Kaya
    Address601 S Sherman St
    CitySpokane
    StateWA
    ZIP99202
    TaxonomyMedical Oncology Physician
    NPI EnumeratedOctober 14, 2005

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

    Payer SourceTotal Paid
    Medicare$1.8M
    Medicaid$0

    Key Findings

    HAKAN KAYA is functionally a specialty oncology infusion practice based on the code mix and revenue drivers: high-volume biologic and chemotherapy drug codes (J9144, J2783, J0897, Q5119, J9041) dominate the ledger while E/M and infusion administration codes (99215, 96413, 96401, 96375) appear as supportive clinical visit and chemotherapy administration services. The presence of many HCPCS drug codes and infusion CPTs indicates the practice’s revenue is driven primarily by outpatient parenteral cancer therapies rather than by office visits or diagnostic imaging.

    Medicare revenue is the sole recorded payer activity: total Medicare revenue is $1.8M while there is no Medicaid billing on file, so this provider effectively operates as a single-payer (Medicare) billing entity in the available data. Analysts should treat this profile as Medicare-focused for scale and utilization comparisons, with no statewide Medicaid activity to evaluate.

    Revenue concentration is extreme: the precomputed top-3 Medicare codes account for 81.4% of this provider’s total Medicare revenue, showing the business is highly dependent on a very small set of treatments. In particular, J9144 alone accounts for $1.3M (71.5% of Medicare revenue), meaning one drug product dominates the revenue stream and operational throughput.

    The provider’s national competitive standing is elevated for several specific drug codes: J9144 ranks #6 of 615 nationally and is labeled an extreme outlier, indicating volume for daratumumab administration is far above typical peers. Similarly, 99215 ranks in the 99th percentile (#1038 of 145531) and is also called an extreme outlier, suggesting unusually high use of high-complexity E/M visits relative to most clinicians. These high ranks point to HAKAN KAYA being a major national-volume administrator for selected oncology services.

    A subset of codes show above-typical but not extreme volume, reflecting a focused product mix: J2783 (rasburicase) is listed as rank #1 of 1 with no peer comparison available, and J9041, J0897, Q5119, and 96401 fall in upper percentiles (68th–90th) or noted as notably above typical for 38222. This pattern suggests the provider treats a concentration of cancer indications that require both high-cost biologics and supportive agents, producing above-average utilization in several oncology-specific pharmaceuticals and procedures.

    Clinical visit patterns support a high-acuity oncology practice: 635 claims for 99215 ($83.2K revenue) and 360 claims for 99214 indicate frequent high- and moderate-complexity established patient visits, consistent with ongoing chemotherapy management and complex decision making. These E/M volumes, combined with infusion and administration CPTs (96413, 96375, 96365), align with a workflow centered on recurrent infusion appointments and longitudinal cancer care.

    Tenure is long: the provider’s NPI was enumerated on 2005-10-14 (~21 years ago), indicating an established practice presence in Spokane, WA. This longevity, together with concentrated high-volume drug billing, suggests sustained specialization in oncology services over many years.

    From a payer or network perspective, the financial and operational risk is concentrated: relying on a few high-revenue drug codes (top three = 81.4% of Medicare revenue) exposes both payer and provider to utilization or pricing shifts for those agents. Contracting or utilization management discussions should therefore prioritize oversight of J9144 and the other top biologic administrations to understand clinical drivers and cost-control opportunities.

    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.

    44 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    J9144Injection, daratumumab, 10 mg and hyaluronidase‑fihj35,640$40$1.3M
    J2783Injection, rasburicase, 0.5 mg340$280$94.2K
    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…640$130$83.2K
    J0897Injection, denosumab, 1 mg4,500$20$81K
    Q5119Injection, rituximab-pvvr, biosimilar, (ruxience), 10 mg2,890$20$60.7K
    99214The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a moderate level of medical decision making, and/or the…360$90$32K
    96413Chemotherapy is a therapeutic procedure used for the treatment of cancer via the use of chemical agents. These chemical agents (drugs) work on the cancerous cells of the body to destroy them. These…250$110$26.6K
    96401The provider administers nonhormonal, antineoplastic chemotherapy drugs subcutaneously or intramuscularly to the patient.360$60$20.3K
    J9041Injection, bortezomib, 0.1 mg4,520$1$18.1K
    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…220$70$14.6K

    Showing 1–10 of 44

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 44 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    44 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    J91441106,480$40$357.9K
    J2783110340$280$94.2K
    J0897311501,800$20$57.9K
    J3490137070$50$51.2K
    Q51192101,460$20$43.9K
    964132416080$110$15K
    992141,21510,860100$80$13.6K
    74177433550110$80$12.3K
    J90411103,080$1$11.2K
    992331,1132,42060$90$10.4K

    Showing 1–10 of 44

    Related Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    St. Joseph Hospital LLCIDGeneral Acute Care Hospital$0$4.7M
    Cancer Care Northwest Centers P SWAHematology & Oncology Physician$0$3M
    Danko MartincicIDHematology & Oncology Physician$2.6M$0
    Columbia Surgical Specialists, PsWAAmbulatory Surgical Clinic/Center$891.1K$1.2M
    Vijay NarendranFLHematology & Oncology Physician$2M$0
    Saritha ThummaWAHematology & Oncology Physician$1.8M$0
    Christopher LeeWARadiation Oncology Physician$1.7M$0
    Elizabeth GundersonWAMedical Oncology Physician$1.6M$0
    Srivalli GopaluniWAHematology & Oncology Physician$1.6M$0
    Wayne LamoreauxWARadiation Oncology Physician$1.5M$0

    Nearby Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Multicare Health SystemWAInternal Medicine Physician$0$46.6M
    Frontier Behavioral HealthWACommunity/Behavioral Health Agency$0$34.3M
    Dungarvin Washington Children's Services, LLCWADevelopmental Disabilities Clinic/Center$0$21.3M
    Community Health Association Of SpokaneWAFederally Qualified Health Center (FQHC)$0$8.2M
    Providence Health & Services- WashingtonWARehabilitation Hospital$0$8M
    Compass Career Solutions LLCWADevelopmentally Disabled Services Day Training Agency$0$7.7M
    Inland Imaging LLCWADiagnostic Radiology Physician$0$6.8M
    Northwest Autism CenterWACommunity/Behavioral Health Agency$0$5.9M
    Northwest Pediatric OphthalmologyWAOphthalmology Physician$0$4.2M
    Inland Northwest Renal Care Group, LLCWAEnd-Stage Renal Disease (ESRD) Treatment Clinic/Center$0$4.1M

    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. Washington Distribution
    Hakan Kaya — 8 of 25 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Washington