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 & MedicaidGeoffrey Lam
    Ask Trek AI about this page

    Geoffrey Lam — Billing Profile & Reimbursement Data

    NPI 1619156205 · Grand Rapids, MI · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician

    Customize your policy alerts

    Sign up for Geoffrey Lam — 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.

    Geoffrey Lam is a thoracic surgery (cardiothoracic vascular surgery) physician provider located in Grand Rapids, Michigan. This profile covers 4 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 / 7

    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
    OrganizationGeoffrey Lam
    Address221 Michigan St Ne Ste 300
    CityGrand Rapids
    StateMI
    ZIP49503
    TaxonomyThoracic Surgery (Cardiothoracic Vascular Surgery) Physician
    NPI EnumeratedOctober 31, 2007

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

    Payer SourceTotal Paid
    Medicare$19.5K
    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.

    4 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    32663This procedure involves visualizing the chest cavity and the lobe of the lung to remove it.10$1,110$13.3K
    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…20$150$3.6K
    32674This procedure involves visualizing the chest cavity and the mediastinal lymph nodes in order to remove them.10$170$2.4K
    71046In this diagnostic procedure, the provider performs a minimum of two radiological views of the chest. He performs this study for the assessment of conditions affecting the chest, its contents, and…10$20$240

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 4 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    4 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    3266351010$1,140$16K
    992057331,68020$150$4.3K
    3267461020$170$2.8K
    710461,2541,38070$10$1.5K

    Related Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Bachar HamadILGastroenterology Physician$325.3K$829.9K
    Zhe LiangMIRheumatology Physician$1M$14.6K
    Enid Ling-stowersMIEmergency Medicine Physician$253.4K$67.6K
    Tejinder ManderMICardiovascular Disease Physician$315K$0
    Harvinder SinghMICardiovascular Disease Physician$249K$0
    Byron SlatonMINephrology Physician$245.5K$0
    Charles CrellinMIOrthopaedic Surgery Physician$131.2K$0
    Matthew VillerotMIPain Medicine (Anesthesiology) Physician$119.1K$0
    Ashok SriramMINeurology Physician$101.3K$0
    John PappMIGastroenterology Physician$99K$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. Michigan Distribution
    Geoffrey Lam — 0 of 4 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Michigan