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    OpenPayerNPI Medicare & MedicaidCasey Phan
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    Casey Phan — Billing Profile & Reimbursement Data

    NPI 1720421118 · Honolulu, HI · Anatomic Pathology & Clinical Pathology Physician

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    Casey Phan is a anatomic pathology & clinical pathology physician provider located in Honolulu, Hawaii. This profile covers 18 Medicare and 1 Medicaid CPT/HCPCS procedure codes, with claims volume, average reimbursement, and total revenue by code, benchmarked against other providers billing the same services.

    Provider details (source: NPPES NPI Registry)

    FieldValue
    Entity TypeIndividual
    OrganizationCasey Phan
    Address1301 Punchbowl Street
    CityHonolulu
    StateHI
    ZIP96813
    TaxonomyAnatomic Pathology & Clinical Pathology Physician
    NPI EnumeratedApril 16, 2013

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

    Payer SourceTotal Paid
    Medicare$296.5K
    Medicaid$830

    Key Findings

    This NPI is an anatomic pathology & clinical pathology physician whose Medicare billing is concentrated in surgical pathology and ancillary pathology services. The top Medicare lines by revenue are 88305 ($136.3K), G0416 ($41K), and 88341 ($37.8K), which — based on their descriptions — indicate routine gross and microscopic surgical pathology, prostate needle‑biopsy pathology, and immunohistochemical/single‑antibody interpretation activity. These codes together drive the core clinical workflows reflected in the Medicare revenue mix.

    Revenue concentration is high on Medicare: the precomputed top 3 Medicare codes account for 72.4% of this provider's total Medicare revenue while total Medicare revenue is $296.5K. On Medicaid the revenue footprint is effectively entirely concentrated in a single code: the precomputed top‑3 Medicaid codes account for 100.0% of Medicaid revenue and Medicaid revenue totals $829, all from 88305. This indicates a narrow code-level revenue base, especially on Medicaid.

    Payer mix is heavily Medicare‑skewed: Medicare revenue ($296.5K) dwarfs Medicaid revenue ($829), so the provider is effectively a Medicare provider with minimal Medicaid activity. The small absolute Medicaid total and its concentration in a single surgical‑pathology code suggest little participation in the state Medicaid market or minimal billed Medicaid volume.

    National competitive standing on the provider's top Medicare codes shows relatively high percentile ranks but are described in the file as routine activity. 88305 ranks #1136 of 14580 (92th percentile; typical, unremarkable volume for this code), G0416 ranks #155 of 2465 (94th percentile; typical, unremarkable volume for this code), and 88341 ranks #959 of 10274 (91th percentile; typical, unremarkable volume for this code). In plain terms, the provider posts solid activity on these national leaderboards but the dataset characterizes those volumes as typical rather than indicative of a uniquely dominant national position.

    Statewide competitive standing on Medicaid is minimal: 88305 on Medicaid ranks #24 of 25 in-state (4th percentile; typical, unremarkable volume for this code), reflecting very low Medicaid billing compared with in‑state peers. Even though 88305 is the sole Medicaid revenue source, its in‑state rank implies the provider is a modest Medicaid participant in Hawaii.

    Tenure and stability: the NPI was enumerated on 2013-04-16 (~13 years ago), indicating more than a decade of billing history under this NPI. This length of enrollment supports interpretation of the observed patterns as established billing behavior rather than a transient reporting artifact.

    Code‑level service mix points to a pathology practice that augments core surgical pathology with immunohistochemistry and cytopathology services. Beyond 88305, notable Medicare contributions come from immunostain and ancillary pathology codes such as 88341 ($37.8K, 12.7% of Medicare revenue), 88342 ($18.9K, 6.4%), and 88344 ($8.8K, 2.9%), suggesting routine use of IHC/additional stains in the practice workflow.

    There are no codes in the top lists labeled as extreme outliers; most listed codes are characterized as "typical, unremarkable volume for this code" even where percentiles are high or low. This pattern implies the provider's volumes are within the expected distribution for pathologists doing surgical pathology and related ancillary testing rather than showing anomalous utilization on specific CPT/HCPCS codes.

    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.

    18 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    88305The physician, typically a pathologist, performs a level IV examination of a surgical pathology specimen. The examination includes accessioning the specimen into the lab, which involves formally…2,900$50$136.3K
    G0416Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method150$280$41K
    88341The lab analyst applies an additional single antibody stain on a slide or slides prepared from the same patient specimen as the initial antibody stain, such as tumor tissue. Then a qualified…660$60$37.8K
    88342The lab analyst applies an initial single antibody stain on a slide or slides prepared from a single patient specimen, such as tumor tissue. Then a qualified provider, typically a pathologist,…280$70$18.9K
    88312The lab analyst performs the technical lab steps to stain a specimen with a special stain. This code applies to Group I for microorganisms. A qualified provider, typically a pathologist, interprets…170$80$13.5K
    88307The physician, typically a pathologist, performs a level V examination of a surgical pathology specimen. The examination includes accessioning the specimen into the lab, which involves formally…110$100$11.4K
    88173The lab analyst performs the technical lab test to analyze a cytopathology specimen from a fine needle aspirate and then interprets and reports the results.100$100$10.7K
    88344The lab analyst applies a single multiplex antibody stain on a slide or slides prepared from a single patient specimen, such as tumor tissue. Then a qualified provider, typically a pathologist,…70$130$8.8K
    88360The lab analyst applies a single antibody stain on a slide or slides prepared from a single patient specimen, such as tumor tissue. Then a qualified provider, typically a pathologist, evaluates the…50$90$4.2K
    88304The physician, typically a pathologist, performs a level III examination of a surgical pathology specimen. The examination includes accessioning the specimen into the lab, which involves formally…110$40$3.9K

    Showing 1–10 of 18

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 18 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    18 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    88305250460$40$35.1K
    88341230230$40$9.8K
    G041611020$230$8.4K
    8834224090$50$5.3K
    8833152050$70$4.7K
    8831232040$60$4.4K
    8830743060$70$4.4K
    8817332040$60$3.3K
    8836082050$40$3.3K
    8834411040$80$3K

    Showing 1–10 of 18

    Medicaid: Total Revenue Breakdown by CPT/HCPCS Code

    Medicaid revenue breakdown by year and by CPT/HCPCS procedure code, including monthly billing trends and the top codes driving revenue.

    View: By Year1 / 3

    Medicaid: Complete Services Breakdown

    Every CPT/HCPCS code this provider has billed to Medicaid, with claims volume, average payment, and total revenue.

    1 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    88305The physician, typically a pathologist, performs a level IV examination of a surgical pathology specimen. The examination includes accessioning the specimen into the lab, which involves formally…20$50$830

    Medicaid: Competitive Analysis & Benchmarks

    How this provider's Medicaid billing volume and revenue compare to other Hawaii providers billing the same CPT/HCPCS codes.

    Full comparison — all codes billed, vs. Hawaii median

    1 rows

    CPT/HCPCS CodeDescriptionRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    88305The physician, typically a pathologist, performs a level IV examination of a surgical pathology specimen. The examination includes accessioning the specimen into the lab, which involves formally…24301,750$70$378K

    Related Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Hawaii Pathologists' LaboratoryHIAnatomic Pathology & Clinical Pathology Physician$0$3.8M
    Christopher LumHIAnatomic Pathology & Clinical Pathology Physician$842.1K$0
    Koah VierkoetterHIAnatomic Pathology & Clinical Pathology Physician$119.7K$0
    Pamela Tauchi-nishiHIAnatomic Pathology & Clinical Pathology Physician$112.4K$0
    Hiroko ShinodaHIAnatomic Pathology & Clinical Pathology Physician$107K$0
    Wichit Sae-owHIAnatomic Pathology & Clinical Pathology Physician$85.3K$0
    Tomomi YafusoHIAnatomic Pathology & Clinical Pathology Physician$75.3K$0
    Natalia ZagorskiHIAnatomic Pathology & Clinical Pathology Physician$64.7K$0
    Wesley KimHIAnatomic Pathology & Clinical Pathology Physician$53.6K$0
    David GooHIAnatomic Pathology & Clinical Pathology Physician$43.5K$0

    Nearby Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    The Queens Medical CenterHIGeneral Acute Care Hospital$0$200M
    Straub Clinic & HospitalHIGeneral Acute Care Hospital$0$45.6M
    State Of Hawaii Dept. Of Health Adult Mental Health DivisionHICommunity/Behavioral Health Agency$0$29.3M
    Positive Behavior Supports CorporationHICommunity/Behavioral Health Agency$0$26.4M
    Easter Seals HawaiiHIDevelopmentally Disabled Services Day Training Agency$0$16.8M
    The Emergency Group, Inc.HIEmergency Medicine Physician$0$15M
    Hawaii Dental Group, Inc.HIGeneral Practice Dentistry$0$12.4M
    The Queen's Medical CenterHIGeneral Acute Care Hospital$0$10.3M
    Hawaii Home Care IncHINursing Care Agency$0$9.3M
    Evergreen Adult Day CareHIAdult Day Care Clinic/Center$0$8.9M

    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. Hawaii Distribution
    Casey Phan — 5 of 18 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Hawaii
    Medicaid Revenue by Year vs. Hawaii Providers
    0 of 1 year billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Claims Volume vs. Hawaii Distribution
    Casey Phan — 0 of 1 code billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Hawaii