Loading...

    Explore
    • Policy Monitoring
    • Live Policy Feed
    • Billing Codes
    • NPI Medicare & Medicaid
    • Healthcare Providers
    • Health Insurance Payers
    • States
    • Service Lines
    • Taxonomy Codes
    Lookup tools
    • Billing Code Lookup
    • CPT Modifier Lookup
    • Provider Taxonomy Code Lookup
    • Healthcare Provider & Facility Lookup
    • Health Insurance Payer Lookup
    • Payer Contact Directory

    Policy & Benchmark Tools

    • Prior Authorization Lookup
    • Coverage Criteria Lookup
    • Timely Filing Lookup
    • Billing Code Reimbursement Rates
    • Payer Comparison Dashboard
    • Facility Comparison Dashboard
    • All tools

    Company

    • About OpenPayer
    • Data Sources
    • Trek Health
    OpenPayerby Trek Health
    LinkedInYouTube

    © 2026 Trek Health. All rights reserved.

    OpenPayer is built and maintained by Trek Health.

    v1.0.28
    OpenPayerNPI Medicare & MedicaidW William Cox
    Ask Trek AI about this page

    W William Cox — Billing Profile & Reimbursement Data

    NPI 1114912094 · Suite 1, AK · Hematology & Oncology Physician

    Customize your policy alerts

    Sign up for W William Cox — Billing Profile & Reimbursement Data policy alerts

    Get alerted when relevant policies change without checking for updates manually.

    Monitor payer policy activity

    Receive email alerts as soon as relevant payer policies are published or updated.

    W William Cox is a hematology & oncology physician provider located in Suite 1, Alaska. This profile covers 38 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.

    Table of contents

    Progress1 / 9

    Explore openpayer tools

    • Billing CodesCPT, HCPCS, DRG & more
    • Reimbursement RatesCommercial vs. Medicare rate reports
    • ProvidersHospitals & facilities
    • PayersPlans & market footprint
    • Taxonomy CodesNUCC specialty codes
    • ModifiersCPT modifiers & usage
    • Prior AuthorizationPA policies by payer & drug
    • Timely FilingFiling deadlines by payer
    • Coverage CriteriaMedical necessity by payer
    • Payer ContactsClaims, PA & appeals contacts
    View all tools

    Provider details (source: NPPES NPI Registry)

    FieldValue
    Entity TypeIndividual
    OrganizationW William Cox
    Address1640 Cowles St
    CitySuite 1
    StateAK
    ZIP99701
    TaxonomyHematology & Oncology Physician
    NPI EnumeratedSeptember 15, 2005

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

    Payer SourceTotal Paid
    Medicare$472.4K
    Medicaid$0

    Key Findings

    This provider’s billing mix is consistent with a hematology/oncology infusion practice: the dominant procedure is pembrolizumab administration (J9271) complemented by chemotherapy administration codes such as 96413 and multiple infusion add-on codes (96417, 96415, 96367). Office evaluation and management codes (99213, 99214, 99215) also appear across the top codes, indicating the practice combines infusion services with clinic follow-up and management visits rather than being purely an inpatient or surgical specialty.

    Revenue is highly concentrated in a single drug line: the top three Medicare codes (J9271, 99213, and 96413) account for 81.6% of the provider’s total Medicare revenue, and J9271 alone represents 70.4% of Medicare revenue with $327.6K attributed to that code. This concentration means most Medicare dollars reported ($472.4K total Medicare revenue) are tied to pembrolizumab administration rather than a broad mix of services.

    The provider appears effectively single‑payer in this dataset: Medicare revenue totals $472.4K while there is no Medicaid billing on file. The absence of Medicaid activity indicates the provider’s public-payer exposure is centered on Medicare and any Medicaid-related population or contract exposure is minimal or non‑existent in the available claims.

    Despite the outsized revenue share from J9271, the provider is a modest participant in national pembrolizumab billing volume: J9271 shows 7.8K claims and $42 avg paid/claim but the code ranks #1430 of 1841 providers nationally (21th percentile; typical, unremarkable volume for this code). By contrast, office visit code 99213 is comparatively strong in scale (373 claims, $85 avg paid/claim) and ranks #43482 of 457151 providers nationally (90th percentile; typical, unremarkable volume for this code), suggesting the practice maintains above‑median clinic visit volume even if it is not a top national administrator of the drug itself.

    Operational signals in the code mix point to an outpatient infusion model with continuity services: presence of G0498 (initiation and continuation of infusion with portable pump), multiple infusion add-on codes (96417, 96415), and follow‑on IV infusion codes (96367, 96375) indicates the practice not only initiates infusions but also manages multi‑drug or extended infusion sessions. The combination of these infusion administration codes with diagnostic/biopsy code 38222 (21 claims, $75 avg paid/claim, $1.6K revenue) suggests they offer both therapeutic infusions and in‑office diagnostic procedures.

    The claim-level economics reflect the billing unit structure for high-cost oncology drugs: J9271 shows a low average paid per claim ($42 avg paid/claim) but very high aggregate revenue ($327.6K) and claim count (7.8K claims), consistent with a per‑milligram J‑code that accumulates revenue through many billed units rather than a high per‑claim payment. Other oncology drug codes with large claim counts but low per‑claim averages (for example J0640 with 544 claims at $3 avg paid/claim) reinforce that unit-based drug billing is the major revenue engine.

    Longitudinal presence is established: the NPI was enumerated on 2005-09-15 (~21 years ago), indicating an enduring practice footprint that could support established referral patterns and payer relationships. That tenure, combined with the concentrated oncology infusion activity, suggests a stable clinical role even if the provider is not a dominant national player for the leading drug code.

    The heavy reliance on a single chemotherapy/immunotherapy code creates concentration sensitivity: because J9271 accounts for 70.4% of Medicare revenue, changes in utilization patterns, unit pricing, or payer coverage for that specific drug or its billing units would materially affect practice revenue. Combined with no recorded Medicaid revenue, reimbursement changes in the Medicare program would have outsized financial impact on the provider compared with practices having a more diversified payer mix.

    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.

    38 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    J9271Injection, pembrolizumab, 1 mg7,800$40$327.6K
    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…370$90$31.7K
    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…190$110$20.6K
    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…170$120$20.3K
    J9217Leuprolide acetate (for depot suspension), 7.5 mg100$140$12.8K
    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…30$220$6.1K
    G0498Chemotherapy administration, intravenous infusion technique; initiation of infusion in the office/clinic setting using office/clinic pump/supplies, with continuation of the infusion in the community…30$150$4.6K
    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$180$4K
    99212The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a straightforward level of medical decision making,…80$50$3.7K
    96367The provider administers an additional intravenous infusion or infusions, after an initial infusion, of a different medication or substance for a period up to one hour to prevent, treat, or diagnose…130$30$3.6K

    Showing 1–10 of 38

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 38 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    38 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    J9271111013,300$40$609.5K
    964131420230$110$30.2K
    992143681,21090$100$16.2K
    J92171320100$130$14.8K
    9921530240040$150$11K
    99213701,29070$70$8.5K
    G049881050$150$7.5K
    992056414030$190$7.4K
    9920431346030$140$6.1K
    964171120100$60$5.3K

    Showing 1–10 of 38

    Related Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Aimee JohnsonAKPhysician Assistant$914.7K$0
    Angela EmersonAKPhysician Assistant$403.8K$0
    Jacqueline CoxAKHematology & Oncology Physician$403.3K$0
    Britni BrowningAKPhysician Assistant$256.7K$0
    Dennis BeckworthGUMedical Oncology Physician$6K$0

    Nearby Providers

    Other providers in the same ZIP code as W William Cox, ranked by combined Medicare and Medicaid revenue.

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Tanana Chiefs ConferenceAKMulti-Specialty Clinic/Center$0$107.5M
    Fairbanks Memorial Hospital, LLCAKGeneral Acute Care Hospital$0$83.6M
    Fairbanks Resource Agency IncAKCommunity/Behavioral Health Agency$0$48M
    Presbyterian Hospitality HouseAKEmotionally Disturbed Childrens' Residential Treatment Facility$0$34.9M
    Fairbanks Native AssociationAKSubstance Abuse Rehabilitation Facility$0$32.6M
    Tanana Chiefs ConfenerceAKTransportation Broker$0$24.1M
    Tanana Chiefs ConferenceAKCommunity/Behavioral Health Agency$0$17M
    Tanana Chiefs ConferenceAKMulti-Specialty Clinic/Center$0$16.3M
    Restore LLCAKSubstance Use Disorder Rehabilitation Clinic/Center$0$16.3M
    Tanana Valley Clinic LLCAKMulti-Specialty Clinic/Center$0$15.2M

    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. Alaska Distribution
    W William Cox — 0 of 25 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Alaska