Loading...

    Explore
    • Policy Monitoring
    • Live Policy Feed
    • Billing Codes
    • NPI Medicare & Medicaid
    • Healthcare Providers
    • Health Insurance Payers
    • States
    • Service Lines
    • Taxonomy Codes
    Lookup tools
    • Billing Code Lookup
    • CPT Modifier Lookup
    • Provider Taxonomy Code Lookup
    • Healthcare Provider & Facility Lookup
    • Health Insurance Payer Lookup
    • Payer Contact Directory

    Policy & Benchmark Tools

    • Prior Authorization Lookup
    • Coverage Criteria Lookup
    • Timely Filing Lookup
    • Billing Code Reimbursement Rates
    • Payer Comparison Dashboard
    • Facility Comparison Dashboard
    • All tools

    Company

    • About OpenPayer
    • Data Sources
    • Trek Health
    OpenPayerby Trek Health
    LinkedInYouTube

    © 2026 Trek Health. All rights reserved.

    OpenPayer is built and maintained by Trek Health.

    v1.0.28
    OpenPayerNPI Medicare & MedicaidAaron Jeng
    Ask Trek AI about this page

    Aaron Jeng — Billing Profile & Reimbursement Data

    NPI 1003053851 · San Gabriel, CA · Internal Medicine Physician

    Customize your policy alerts

    Sign up for Aaron Jeng — Billing Profile & Reimbursement Data policy alerts

    Get alerted when relevant policies change without checking for updates manually.

    Monitor payer policy activity

    Receive email alerts as soon as relevant payer policies are published or updated.

    Aaron Jeng is a internal medicine physician provider located in San Gabriel, California. This profile covers 34 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.

    Table of contents

    Progress1 / 8

    Explore openpayer tools

    • Billing CodesCPT, HCPCS, DRG & more
    • Reimbursement RatesCommercial vs. Medicare rate reports
    • ProvidersHospitals & facilities
    • PayersPlans & market footprint
    • Taxonomy CodesNUCC specialty codes
    • ModifiersCPT modifiers & usage
    • Prior AuthorizationPA policies by payer & drug
    • Timely FilingFiling deadlines by payer
    • Coverage CriteriaMedical necessity by payer
    • Payer ContactsClaims, PA & appeals contacts
    View all tools

    Provider details (source: NPPES NPI Registry)

    FieldValue
    Entity TypeIndividual
    OrganizationAaron Jeng
    Address438 W Las Tunas Dr
    CitySan Gabriel
    StateCA
    ZIP91776
    TaxonomyInternal Medicine Physician
    NPI EnumeratedJanuary 15, 2009

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

    Payer SourceTotal Paid
    Medicare$43.2M
    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.

    34 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    Q4236Carepatch, per square centimeter (add-on, list separately in addition to primary procedure)21,150$990$20.9M
    Q4281Barrera sl or barrera dl, per square centimeter (add-on, list separately in addition to primary procedure)11,040$1,220$13.4M
    Q4205Membrane graft or membrane wrap, per square centimeter (add-on, list separately in addition to primary procedure)7,230$1,160$8.4M
    99233The provider sees a patient for a subsequent hospital inpatient or observation care visit involving evaluation and management (E/M). The visit involves a high level of medical decision making or the…1,180$100$116.3K
    15271The provider uses a skin substitute, such as an allograft or xenograft, to cover wounds on the patient’s trunk, arms, and/or legs up to an area of 100 cm2. This code covers up to the first 25 cm2.440$130$56.4K
    95165In this procedure, the provider mixes and prepares the antigens for allergen immunotherapy. Use this code when the provider prepares one or more antigens.3,590$10$50.3K
    99349The provider sees an established patient for a home or residence visit involving evaluation and management (E/M). The visit involves moderate medical decision making or the provider spends at least…420$110$45.3K
    99223The provider sees a patient for an initial hospital inpatient or observation care visit involving evaluation and management (E/M). The visit involves a high level of medical decision making or the…220$150$31.9K
    15275The provider uses a skin substitute, such as an allograft or xenograft, to cover wounds on the face, scalp, eyelids, mouth, neck, ears, orbits, genitalia, hands, feet, and/or multiple digits, up to…220$140$31.4K
    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…310$70$21.4K

    Showing 1–10 of 34

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 34 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    34 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    Q42361203,950$960$6.2M
    Q42051101,890$1,150$2.7M
    Q4281120940$1,210$1.9M
    993099631,790210$80$48.1K
    G018126038060$90$42.9K
    99349182870110$90$31.7K
    95165392101,040$10$27.8K
    975981830120$30$27.3K
    9923340811,530120$100$26.2K
    9921416,58637,970120$90$23.2K

    Showing 1–10 of 34

    Related Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Richard ParkCAInternal Medicine Physician$31.7M$0
    Harbinder BrarCAMaternal & Fetal Medicine Physician$0$31.3M
    Jack AzadCAGeneral Practice Physician$17.2M$0
    Ravindra GautamCAInternal Medicine Physician$13M$0
    Mark LeFLDiagnostic Radiology Physician$10.7M$0
    Nathan SteinleCARetina Specialist (Ophthalmology) Physician$9.5M$0
    Leo PolosajianCAClinical Cardiac Electrophysiology Physician$6M$1.6M
    Amiel MoshfeghCAVascular & Interventional Radiology Physician$7.6M$0
    Barry EibschutzCARheumatology Physician$6.6M$583.6K
    John SaitoCAPediatric Pulmonology Physician$468.7K$6.5M

    Nearby Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    David ChenCADiagnostic Radiology Physician$1.4M$8.3K
    Sid DaneshCADermatology Physician$293.6K$1.1M
    Tai WuCAInternal Medicine Physician$1.3M$10.9K
    Second Bio Lab Clinical LaboratoryCAClinical Medical Laboratory$536.6K$160.5K
    Joseph LuCANeurology Physician$402.2K$235.4K
    Yih KokCACardiovascular Disease Physician$538K$1.7K
    Chester ZahnCAGastroenterology Physician$239K$175.6K
    Zhi ZengCAInternal Medicine Physician$367.4K$140
    Chonghao ZhaoCASpecialist$280.3K$0
    Jeffrey YoungCAFamily Medicine Physician$155.1K$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. California Distribution
    Aaron Jeng — 7 of 25 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — California