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    OpenPayerNPI Medicare & MedicaidWilliam Ashley
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    William Ashley — Billing Profile & Reimbursement Data

    NPI 1033238647 · Baltimore, MD · Neurological Surgery Physician

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    William Ashley is a neurological surgery physician provider located in Baltimore, Maryland. This profile covers 14 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
    OrganizationWilliam Ashley
    Address5051 Greenspring Ave
    CityBaltimore
    StateMD
    ZIP21209
    TaxonomyNeurological Surgery Physician
    NPI EnumeratedMarch 28, 2007

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

    Payer SourceTotal Paid
    Medicare$123.8K
    Medicaid$0

    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.

    14 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    61624The provider performs a transcatheter permanent occlusion or embolization procedure within the central nervous system, which includes the brain (intracranial) or spinal cord. Using imaging guidance,…30$920$28.5K
    61312Hematoma is an unusual collection of blood outside the blood vessels due to internal hemorrhage. Subdural or extradural hematoma is caused by head injuries, and it is a life–threatening condition.…10$1,700$23.7K
    36224In this procedure, the provider performs imaging supervision and interpretation for angiography performed by inserting a catheter through a distal artery into the thoracic aorta and farther into the…50$320$14.4K
    61645Using fluoroscopy, live X–rays displayed on a video monitor, the provider inserts a catheter percutaneously (through a small incision in the skin) into an intracranial artery, a branch of the carotid…20$710$13.4K
    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…130$100$12.6K
    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…60$180$10.6K
    36226In this procedure, the provider performs imaging supervision and interpretation for angiography performed by inserting a catheter through a distal artery into the thoracic aorta and aortic arch. He…20$210$4.7K
    75898As a follow–up study, the provider performs vessel imaging called angiography through the catheter that is already present in the vessel because of previous therapy, embolization, or infusion, other…50$80$3.5K
    36223In this procedure, the provider performs imaging supervision and interpretation for angiography performed by inserting a catheter through a distal artery into the thoracic aorta and farther into the…10$270$3.5K
    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$150$2.8K

    Showing 1–10 of 14

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 14 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    14 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    6131231020$1,760$28.1K
    6162441020$870$24.4K
    992145,52010,270150$90$24.1K
    6164521020$690$11K
    36223111020$340$10.9K
    992153,2374,07050$120$10.9K
    992232,6962,93040$140$10.3K
    3622432020$340$10.2K
    992053411,91030$160$6.5K
    3622691030$210$6.4K

    Showing 1–10 of 14

    Related Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Medical Practices Of Antietam, LLCMDGeneral Practice Physician$0$20.5M
    University Of Maryland St. Joseph Medical Group, LLCMDGeneral Practice Physician$0$6.2M
    Brian LarsenILRetina Specialist (Ophthalmology) Physician$3.8M$197.6K
    Syed Sameer NasirTNHematology & Oncology Physician$3.5M$0
    Victoria CoraglioFLFamily Medicine Physician$1.3M$1M
    Naryan SabherwalILRetina Specialist (Ophthalmology) Physician$1.2M$949.6K
    Rima PatelAZRetina Specialist (Ophthalmology) Physician$1.8M$0
    Shivan TekwaniILOphthalmology Physician$1.7M$10.7K
    Ikumi SuzukiMDMedical Oncology Physician$1.6M$0
    David WengMDMedical Oncology Physician$1.5M$0

    Nearby Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Neel S. Satpute, Dds, PAMDDental Clinic/Center$0$5M
    Newman SundMDOphthalmology Physician$4M$0
    Eric SuanMDOphthalmology Physician$3.8M$0
    Matthew SpeicherMDOphthalmology Physician$3.7M$0
    Timothy PolkMDOphthalmology Physician$3.5M$0
    Chaim MondMDRheumatology Physician$1.7M$418.1K
    Heather TamezMDRetina Specialist (Ophthalmology) Physician$1.3M$0
    Greenspring Surgery Center LLCMDAmbulatory Surgical Clinic/Center$1M$1.8K
    Jeffrey BankerMDCardiovascular Disease Physician$683.4K$0
    Sunal MakadiaMDCardiovascular Disease Physician$433.2K$0

    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. Maryland Distribution
    William Ashley — 0 of 14 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Maryland