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    OpenPayerNPI Medicare & MedicaidWalter Gardiner
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    Walter Gardiner — Billing Profile & Reimbursement Data

    NPI 1225035280 · Christiansted, VI · Ph.D. Medical Genetics

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    Walter Gardiner is a ph.d. medical genetics provider located in Christiansted, U.S. Virgin Islands. This profile covers 5 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
    OrganizationWalter Gardiner
    Address5134 Sundial Park
    CityChristiansted
    StateVI
    ZIP00820
    TaxonomyPh.D. Medical Genetics
    NPI EnumeratedJuly 6, 2005

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

    Payer SourceTotal Paid
    Medicare$120.5K
    Medicaid$0

    Key Findings

    WALTER GARDINER's Medicare activity is tightly concentrated in dialysis-related monthly management codes: 90960 and 90961 together account for 94.6% of the provider's Medicare revenue, and the precomputed note that the top three Medicare codes represent 97.2% of total Medicare revenue underscores that nearly all Medicare dollars come from a small set of services. This concentration indicates the provider operates primarily in ESRD monthly care management rather than a broad outpatient practice mix.

    Code-level volume shows a specialized service-line focus: 90960 alone represents $96K of the $120.5K total Medicare revenue (79.6% of the provider's Medicare revenue) from 400 claims, and 90961 contributes $18K (15.0%) from 96 claims; the remaining billed evaluation-and-management codes (99214, 99213) and remote monitoring (99457) are comparatively minor revenue sources. Together these figures support an operational model centered on recurring monthly ESRD management encounters rather than episodic office visits.

    Competitive standing on Medicare for the top dialysis management code is elevated: the provider ranks #426 of 6549 providers nationally for 90960 and is described as "notably above typical national volume for this code," indicating a significantly higher-than-typical market share for that specific ESRD service relative to peers. For 90961 the provider ranks #1102 of 6091 (82nd percentile), which the data labels as "typical, unremarkable volume," so while 90961 is a meaningful revenue contributor it is less distinctive competitively than 90960.

    This entity is effectively single-payer in the available data: lifetime Medicare revenue is $120.5K while there is no Medicaid billing on file. The absence of Medicaid claims means payer mix is concentrated entirely on Medicare in the datasets provided, which has implications for contracting, reimbursement risk, and market reach in the territory.

    Tenure is long-lived: the provider's NPI was enumerated on 2005-07-06 (approximately 21 years ago), which suggests an established presence in the market and that the observed billing pattern represents an enduring service footprint rather than a recently launched specialty. This duration supports interpreting the concentrated ESRD billing as a stable practice focus.

    Lower-level E/M and remote monitoring activity is present but small: 99214 ($3.2K, 40 claims) and 99213 ($2.2K, 42 claims) together represent only a few percent of Medicare revenue, and 99457 contributes approximately $1.2K. These volumes and ranking percentiles (23rd–32nd for the E/M codes, 9th percentile for 99457) suggest routine, ancillary outpatient and RPM services that supplement the core ESRD management business rather than driving the practice.

    Revenue concentration creates operational sensitivity to ESRD policy and reimbursement changes: because 90960 and 90961 drive the majority of Medicare dollars (with the top three codes accounting for 97.2% of Medicare revenue), any shifts in ESRD monthly management payment or utilization would disproportionately affect this provider's Medicare revenue stream. Analysts and payers should treat this as a targeted clinical line of business when evaluating network value or rate negotiations.

    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.

    5 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    90960The provider manages all the services associated with the monthly care of a patient who is 20 years old or older and has a condition known as end stage renal disease or ESRD. For this service, the…400$240$96K
    90961The provider manages all the services associated with the monthly care of a patient who is 20 years old or older and has a condition known as end stage renal disease, or ESRD. For this service, the…100$190$18K
    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…40$80$3.2K
    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…40$50$2.2K
    99457The provider manages treatment using data from remote physiologic monitoring. The service requires at least one real–time interactive communication with the patient or caregiver during the month and…30$40$1.2K

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 5 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    5 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    90960110270$250$72.4K
    992145480100$80$15.5K
    9096111060$190$10.7K
    992136180100$50$7.6K
    99457410150$40$5.8K

    Nearby Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    St Croix Vision Center IncVIOptometrist$0$3.6M
    One Dental Practice LLCVIDentist$0$3.2M
    Governor Juan F. Luis Hospital & Medical CenterVIEnd-Stage Renal Disease (ESRD) Treatment Clinic/Center$0$3M
    Js Therapies, LLCVIOccupational Therapist$0$2.9M
    Healthquest, LLC.VIEnd-Stage Renal Disease (ESRD) Treatment Clinic/Center$0$2.4M
    Department Of Health, Ems StxVILand Ambulance$0$2.2M
    Lindsy Wagner LLCVIClinical Social Worker$0$2.2M
    Ophthalmology Consultants, PCVIOphthalmology Physician$0$2.1M
    Acute Alternative Medical GroupVIEmergency Medical Services (Emergency Medicine) Physician$0$1.9M
    Pediatric Care Center LLCVIPediatrics Physician$0$1.7M

    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. U.S. Virgin Islands Distribution
    Walter Gardiner — 2 of 5 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — U.S. Virgin Islands