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    OpenPayerNPI Medicare & MedicaidJoon Ahn
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    Joon Ahn — Billing Profile & Reimbursement Data

    NPI 1083681027 · Mount Vernon, IL · Orthopaedic Hand Surgery Physician

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    Joon Ahn is a orthopaedic hand surgery physician provider located in Mount Vernon, Illinois. This profile covers 31 Medicare and 12 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
    OrganizationJoon Ahn
    Address4121 Veterans Memorial Dr
    CityMount Vernon
    StateIL
    ZIP62864
    TaxonomyOrthopaedic Hand Surgery Physician
    NPI EnumeratedMarch 8, 2006

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

    Payer SourceTotal Paid
    Medicare$136.7K
    Medicaid$71.3K

    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.

    31 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…380$70$24.6K
    29848The provider inserts an endoscope into the wrist joint to divide the transverse carpal ligament and reduce compression on the median nerve in the carpal tunnel that results in pain and numbness.60$360$23K
    29827The provider examines the tissue inside the shoulder joint with an arthroscope. She inserts additional instruments to repair a torn rotator cuff, the grouping of muscles and tendons that surround and…10$860$10.3K
    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,…250$40$10.2K
    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…100$80$8.3K
    29999Use 29999 to report arthroscopy procedures in the musculoskeletal system that does not have a specific code.20$460$6.9K
    73221In this diagnostic procedure, the provider performs a magnetic resonance imaging, or MRI imaging, of any of the joints of a patient’s upper extremity, which can be the shoulder, elbow, wrist, or…70$70$5.3K
    73130In this procedure, the provider takes a minimum of three X–ray images of a patient’s hand to check for any fracture, swelling, or reason of pain in the hand.190$30$4.7K
    73110The provider takes at least three X–ray images of a patient’s complete wrist to check for any fracture, swelling, or reason of pain in the wrist area.170$30$4.5K
    20550Aponeurosis is an abnormal sheet like extension of the tendon. Injection of a tendon or ligament is the medical therapeutic procedure to reduce the aponeurosis formation.120$40$4.4K

    Showing 1–10 of 31

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 31 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    31 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    298278911020$1,030$22.6K
    2984864040$450$19.9K
    9921414,81018,540110$80$17.1K
    992131,51217,39070$60$8.8K
    2999921020$490$8.3K
    206106941,55060$50$7.6K
    7214846070050$80$6.2K
    732217039030$90$4K
    992037366,15030$70$3.8K
    77089132080$30$3.6K

    Showing 1–10 of 31

    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.

    12 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…1,520$20$33.4K
    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,…700$20$13.2K
    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…330$30$10.6K
    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…250$30$7.3K
    73110The provider takes at least three X–ray images of a patient’s complete wrist to check for any fracture, swelling, or reason of pain in the wrist area.250$10$3.6K
    73130In this procedure, the provider takes a minimum of three X–ray images of a patient’s hand to check for any fracture, swelling, or reason of pain in the hand.170$10$2.3K
    73140In this diagnostic procedure, the provider performs a radiological study of one or more fingers. He performs two or more views.70$10$950
    20550Aponeurosis is an abnormal sheet like extension of the tendon. Injection of a tendon or ligament is the medical therapeutic procedure to reduce the aponeurosis formation.10$20$320
    J3301Injection, triamcinolone acetonide, not otherwise specified, 10 mg80$1$240
    73030This particular procedure is for a minimum of 2 X–ray views of the complete shoulder.20$10$160

    Showing 1–10 of 12

    Medicaid: Competitive Analysis & Benchmarks

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

    Full comparison — all codes billed, vs. Illinois median

    12 rows

    CPT/HCPCS CodeDescriptionRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    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…7,93414,680300$50$48.7K
    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…2,70014,190280$20$38.9K
    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…6553,27080$40$11.1K
    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,…5273,33090$10$7.4K
    20550Aponeurosis is an abnormal sheet like extension of the tendon. Injection of a tendon or ligament is the medical therapeutic procedure to reduce the aponeurosis formation.242050$20$3.2K
    73030This particular procedure is for a minimum of 2 X–ray views of the complete shoulder.44555060$10$3K
    73110The provider takes at least three X–ray images of a patient’s complete wrist to check for any fracture, swelling, or reason of pain in the wrist area.7736060$10$2.9K
    73130In this procedure, the provider takes a minimum of three X–ray images of a patient’s hand to check for any fracture, swelling, or reason of pain in the hand.16751070$10$2.8K
    J1040Injection, methylprednisolone acetate, 80 mg467070$10$2.2K
    J1030Injection, methylprednisolone acetate, 40 mg779090$10$1.8K

    Showing 1–10 of 12

    Related Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Columbus Radiology CorpOHDiagnostic Radiology Physician$0$49.9M
    Amanda MckeeILFamily Nurse Practitioner$5.5M$1.6M
    Faisel AhmadILRetina Specialist (Ophthalmology) Physician$1.6M$4.1M
    Omar AhmadILRetina Specialist (Ophthalmology) Physician$2.9M$2.1M
    Michael CovlinILObstetrics & Gynecology Physician$6.8K$1.4M
    Neetin PatelILDiagnostic Radiology Physician$330.8K$1M
    Elisabeth Beyer-nolenILObstetrics & Gynecology Physician$7.6K$1.3M
    Fadi ShamshamILInterventional Cardiology Physician$835.1K$52.2K
    Kathleen NaegeleILHematology & Oncology Physician$805.1K$57.9K
    Linda ArmstrongGADiagnostic Radiology Physician$643.9K$175.1K

    Nearby Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Christopher Greater Area Rural Health Planning CorporationILFederally Qualified Health Center (FQHC)$0$9.5M
    One Hope UnitedILMental Health Clinic/Center (Including Community Mental Health Center)$0$4.9M
    Jefferson County ComprehensiveILMental Health Clinic/Center (Including Community Mental Health Center)$0$4.5M
    Heartland Women's Healthcare, LtdILRural Health Clinic/Center$0$4.4M
    Litton Ambulance Service, IncILAmbulance$739.6K$3.3M
    Spero Family ServicesILMental Health Clinic/Center (Including Community Mental Health Center)$0$3.9M
    Air Evac Ems IncILAir Ambulance$1.7M$1.4M
    Marion Eye Surgery Center LLCILAmbulatory Surgical Clinic/Center$1.6M$52.9K
    Udaya LiyanageILSurgery Physician$1M$109.2K
    Emily BoydILObstetrics & Gynecology Physician$10.1K$803.4K

    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. Illinois Distribution
    Joon Ahn — 4 of 25 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Illinois
    Medicaid Revenue by Year vs. Illinois Providers
    0 of 7 years billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Claims Volume vs. Illinois Distribution
    Joon Ahn — 0 of 12 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Illinois