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 & MedicaidMark Chang
    Ask Trek AI about this page

    Table of contents

    Progress1 / 10

    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

    Mark Chang — Billing Profile & Reimbursement Data

    NPI 1871607507 · Dyer, IN · Orthopaedic Surgery Physician

    Customize your policy alerts

    Sign up for Mark Chang — 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.

    Mark Chang is a orthopaedic surgery physician provider located in Dyer, Indiana. This profile covers 25 Medicare and 3 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
    OrganizationMark Chang
    Address1100 Joliet St
    CityDyer
    StateIN
    ZIP46311
    TaxonomyOrthopaedic Surgery Physician
    NPI EnumeratedAugust 19, 2006

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

    Payer SourceTotal Paid
    Medicare$196.7K
    Medicaid$100

    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.

    25 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    63047The provider performs a laminectomy (excision of the thin bony plate at the back of a vertebra), facetectomy (excision of an area of a vertebra characterized by its smooth surface), and foraminotomy…50$690$36.5K
    22633In this procedure the provider joins two adjoining lumbar vertebral bodies permanently, accessing the operative site with a combination of approaches for a better outcome. The provider performs this…20$1,310$27.6K
    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,…610$30$20.1K
    22612The provider performs arthrodesis, also known as spinal fusion, in the lumbar spine (lower back), to permanently join two vertebrae, the interlocking bones of the spine. The provider applies bone…20$1,190$17.9K
    22842The provider places spinal instrumentation at the back of the spine across three to six vertebral segments to correct a spinal deformity during the course of a spinal surgery, such as a spinal…30$550$17.1K
    63655In this procedure, the provider removes a portion of the vertebra called the lamina and places a permanent plate/paddle electrode in the epidural space, or area between the dura membrane and the wall…20$590$9.5K
    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…160$60$9.1K
    72100The technician takes 2 or 3 views of the vertebrae in the lumbar region which is the lower part of the spine and the sacrum, the area that connects the spine to the pelvis. Lumbosacral spine X–rays…330$30$8.2K
    63048At the same session as laminectomy, facetectomy, and foraminotomy on an initial segment for decompression, the provider performs the procedure on an additional vertebral segment.40$150$6K
    22634In this add–on procedure, the provider joins two additional adjoining lumbar vertebral bodies permanently, accessing the operative site with a combination of approaches for a better outcome. The…20$350$5.2K

    Showing 1–10 of 25

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 25 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    25 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    63685205020$8,700$174.1K
    6365541020$2,160$41K
    22612255020$880$17.6K
    22633247020$840$16.8K
    630471110020$460$11.5K
    22614596040$190$9.4K
    992132,82710,82080$50$7.6K
    22842107020$370$7.1K
    22634112020$230$4.6K
    228537312030$120$4.3K

    Showing 1–10 of 25

    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.

    3 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    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,…10$10$100
    G8417Bmi is documented above normal parameters and a follow-up plan is documented10$0$0
    G8427Eligible clinician attests to documenting in the medical record they obtained, updated, or reviewed the patient's current medications30$0$0

    Medicaid: Competitive Analysis & Benchmarks

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

    Full comparison — all codes billed, vs. Indiana median

    3 rows

    CPT/HCPCS CodeDescriptionRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    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,…832880250$40$59.2K
    G8417Bmi is documented above normal parameters and a follow-up plan is documented6970150$0$0
    G8427Eligible clinician attests to documenting in the medical record they obtained, updated, or reviewed the patient's current medications159190250$0$0

    Nearby Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Mohamad KassarINHematology & Oncology Physician$4.7M$0
    Franciscan Health Dyer & HammondINGeneral Acute Care Hospital$0$4.5M
    Tae'ni Chang-stroman M.d., P.C.INPediatrics Physician$0$3.5M
    Cannan Healthcare Services & Staffing IncINHome Health Agency$0$3.2M
    Neel ShahINHematology & Oncology Physician$3.2M$0
    Pathology Consultants IncINAnatomic Pathology & Clinical Pathology Physician$0$2.9M
    Michael TallaricoINMedical Oncology Physician$2.7M$0
    Northwest Cancer Centers, PCINInternal Medicine Physician$0$2.5M
    Gowri RamadasINHematology & Oncology Physician$1.3M$0
    Shruti SinghINHematology & Oncology Physician$1.1M$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. Indiana Distribution
    Mark Chang — 4 of 25 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Indiana
    Medicaid Revenue by Year vs. Indiana Providers
    0 of 3 years billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Claims Volume vs. Indiana Distribution
    Mark Chang — 0 of 1 code billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Indiana