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    OpenPayerNPI Medicare & MedicaidReid Johnstone
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    Reid Johnstone — Billing Profile & Reimbursement Data

    NPI 1013907260 · Greenville, SC · Allergy & Immunology Physician

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    Reid Johnstone is a allergy & immunology physician provider located in Greenville, South Carolina. This profile covers 16 Medicare and 5 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
    OrganizationReid Johnstone
    Address48 Creekview Ct
    CityGreenville
    StateSC
    ZIP29615
    TaxonomyAllergy & Immunology Physician
    NPI EnumeratedOctober 27, 2005

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

    Payer SourceTotal Paid
    Medicare$150K
    Medicaid$7.1K

    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.

    16 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    J2357Injection, omalizumab, 5 mg2,250$30$67.5K
    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…290$60$17.1K
    95165In this procedure, the provider mixes and prepares the antigens for allergen immunotherapy. Use this code when the provider prepares one or more antigens.1,500$10$14.9K
    95004The provider performs a percutaneous test with allergenic extracts to determine which substances (allergens) trigger an allergic reaction in the patient.3,300$1$9.9K
    95148The provider mixes and prepares a specified number of doses of extract of four single stinging insect venoms.150$60$9.2K
    95117The provider injects the patient with allergenic extracts to desensitize the patient to the allergen; the patient receives 2 or more injections at a single visit.990$10$6.9K
    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…60$90$5.6K
    99204The provider sees a new 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 provider…40$110$4.6K
    95115The provider injects the patient with allergenic extracts to desensitize the patient to the allergen; the patient receives a single injection during the visit.550$10$3.3K
    99203The provider sees a new 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 provider…40$70$3K

    Showing 1–10 of 16

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 16 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    16 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    J235726304,360$30$183.8K
    992145,6277,860160$80$23.2K
    95165401001,270$10$20.9K
    992131,4367,690100$60$10.8K
    95148110150$60$9.2K
    9500416801,790$1$6.4K
    992042,0874,52040$110$6.4K
    9511726120350$10$5.7K
    992031,2372,97030$70$3.9K
    950244660430$10$3.8K

    Showing 1–10 of 16

    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.

    5 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    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…60$60$3.2K
    99244The provider sees a patient for an office or other outpatient consultation involving evaluation and management (E/M). The E/M involves a moderate level of medical decision making or the provider…10$140$1.7K
    95004The provider performs a percutaneous test with allergenic extracts to determine which substances (allergens) trigger an allergic reaction in the patient.10$70$940
    95117The provider injects the patient with allergenic extracts to desensitize the patient to the allergen; the patient receives 2 or more injections at a single visit.120$10$870
    95115The provider injects the patient with allergenic extracts to desensitize the patient to the allergen; the patient receives a single injection during the visit.50$10$290

    Medicaid: Competitive Analysis & Benchmarks

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

    Full comparison — all codes billed, vs. South Carolina median

    5 rows

    CPT/HCPCS CodeDescriptionRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    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…1,9962,770210$60$254.5K
    95004The provider performs a percutaneous test with allergenic extracts to determine which substances (allergens) trigger an allergic reaction in the patient.2930860$130$203.7K
    99244The provider sees a patient for an office or other outpatient consultation involving evaluation and management (E/M). The E/M involves a moderate level of medical decision making or the provider…10411070$150$157.3K
    95117The provider injects the patient with allergenic extracts to desensitize the patient to the allergen; the patient receives 2 or more injections at a single visit.5680260$10$46.2K
    95115The provider injects the patient with allergenic extracts to desensitize the patient to the allergen; the patient receives a single injection during the visit.2940300$10$13.2K

    Related Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Allergy Partners, PLLCNMAllergy & Immunology Physician$0$5M
    Allergy Partners, PLLCINAllergy & Immunology Physician$0$3.1M
    Allergy Partners, PLLCSCAllergy & Immunology Physician$0$3M
    Allergy Partners, PLLCSCAllergy & Immunology Physician$0$2.2M
    Allergy Partners, PLLCSCAllergy & Immunology Physician$0$1.6M
    Allergy Partners, PLLCNMAllergy & Immunology Physician$0$1.4M
    Eric KarlinVAAllergy & Immunology Physician$564.6K$1.6K
    Michael NeulandFLAllergy & Immunology Physician$471.8K$0
    Sol DrapkinILAllergy & Immunology Physician$409.6K$28.8K
    Andrew DavidsonSCAllergy & Immunology Physician$355.1K$14.6K

    Nearby Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Childrens Medical CenterSCSpecialist$0$17.1M
    Prisma Health University Medical GroupSCDevelopmental - Behavioral Pediatrics Physician$0$16M
    Agapi Behavioral ConsultantsSCBehavior Analyst$0$15M
    St Francis Hospital, Inc.SCGeneral Acute Care Hospital$0$13M
    Eastside Pediatric Dentistry PASCPediatric Dentistry$0$10M
    Magnolia Medical Group IncSCPhysical Therapist$0$9.9M
    Greenville Health CorporationSCDurable Medical Equipment & Medical Supplies$0$8.9M
    D&s Community Services Sc, LLCSCIntellectual and/or Developmental Disabilities Community Based Residential Treatment Facility$0$8.3M
    Bloom Behavioral Therapy LLCSCMental Health Counselor$0$7.5M
    Prisma Health-upstateSCGeneral Acute Care Hospital$0$6.4M

    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. South Carolina Distribution
    Reid Johnstone — 0 of 16 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — South Carolina
    Medicaid Revenue by Year vs. South Carolina Providers
    0 of 1 year billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Claims Volume vs. South Carolina Distribution
    Reid Johnstone — 0 of 5 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — South Carolina