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 & MedicaidSing Chan
    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

    Sing Chan — Billing Profile & Reimbursement Data

    NPI 1225053523 · Flushing, NY · Gastroenterology Physician

    Customize your policy alerts

    Sign up for Sing Chan — 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.

    Sing Chan is a gastroenterology physician provider located in Flushing, New York. This profile covers 17 Medicare and 64 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
    OrganizationSing Chan
    Address3808 Union St
    CityFlushing
    StateNY
    ZIP11354
    TaxonomyGastroenterology Physician
    NPI EnumeratedJuly 13, 2006

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

    Payer SourceTotal Paid
    Medicaid$10.2M
    Medicare$165.1K

    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.

    17 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    43239The provider inserts a flexible endoscope through the mouth and down into the esophagus, stomach, and duodenum where he removes one or more tissue biopsy specimens for diagnostic analysis.150$350$51.2K
    45385The provider examines the colon and rectum using a colonoscope, a long, thin flexible tubular instrument with a light source and camera. He removes one or more tumors, polyps, or other lesions with a…70$390$27.1K
    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…240$80$18.1K
    45398During a flexible colonoscopy, the provider ligates a structure such as a hemorrhoid using a flexible band.20$760$16K
    46250In this procedure, the provider excises two or more external hemorrhoids or hemorrhoid groups.30$430$11.6K
    46221In this procedure, the provider ligates, or ties off, the base of a hemorrhoid inside the rectum with a rubber band. The provider performs this procedure to let the hemorrhoid dry out due to a lack…30$270$7K
    45378The provider examines the colon and rectum using a colonoscope, a flexible tube with a camera at its inserted end. If he sees any areas of abnormal mucosa or tissue, he takes samples using a brush…20$290$6.6K
    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…60$90$5.5K
    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,…120$40$5.2K
    45380The provider examines the rectum and colon using a flexible colonoscope, a tubular instrument with a light source and camera, to look for the cause of a patient's symptoms, which may include…10$380$4.9K

    Showing 1–10 of 17

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 17 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    17 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    46500172060$290$23K
    453852661,10040$320$19.4K
    9921422,73930,45090$100$19K
    4539811020$760$16K
    453801,1261,22040$230$15K
    46221365040$250$14.2K
    432391441,29050$180$14.2K
    992136,23531,44080$70$12.1K
    4625011030$430$11.6K
    4537833669020$230$8.3K

    Showing 1–10 of 17

    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.

    64 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    43239The provider inserts a flexible endoscope through the mouth and down into the esophagus, stomach, and duodenum where he removes one or more tissue biopsy specimens for diagnostic analysis.7,590$230$1.7M
    46250In this procedure, the provider excises two or more external hemorrhoids or hemorrhoid groups.3,530$330$1.2M
    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…16,480$50$856.8K
    88312The lab analyst performs the technical lab steps to stain a specimen with a special stain. This code applies to Group I for microorganisms. A qualified provider, typically a pathologist, interprets…1,040$680$705.1K
    88305The physician, typically a pathologist, performs a level IV examination of a surgical pathology specimen. The examination includes accessioning the specimen into the lab, which involves formally…1,540$440$673.4K
    45385The provider examines the colon and rectum using a colonoscope, a long, thin flexible tubular instrument with a light source and camera. He removes one or more tumors, polyps, or other lesions with a…2,190$280$612.1K
    45350In this procedure, the provider ligates a structure such as a hemorrhoid with a flexible band using a flexible sigmoidoscope, a scope designed to examine the rectum and sigmoid colon.1,350$430$572.9K
    88313The lab analyst performs the technical lab steps to stain a specimen for Group II identification, for example an iron stain or trichrome stain. A qualified provider, typically a pathologist,…1,040$490$513.7K
    46230In this procedure, the provider removes multiple external abnormal growths, known as external papilla or skin tags, from the anal area. A provider removes these lesions as they are often associated…3,930$120$467.7K
    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…4,240$80$343.1K

    Showing 1–10 of 64

    Medicaid: Competitive Analysis & Benchmarks

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

    Full comparison — all codes billed, vs. New York median

    64 rows

    CPT/HCPCS CodeDescriptionRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    46250In this procedure, the provider excises two or more external hemorrhoids or hemorrhoid groups.1103,530$330$1.2M
    45350In this procedure, the provider ligates a structure such as a hemorrhoid with a flexible band using a flexible sigmoidoscope, a scope designed to examine the rectum and sigmoid colon.1101,350$430$573K
    46230In this procedure, the provider removes multiple external abnormal growths, known as external papilla or skin tags, from the anal area. A provider removes these lesions as they are often associated…1103,930$120$468.1K
    43239The provider inserts a flexible endoscope through the mouth and down into the esophagus, stomach, and duodenum where he removes one or more tissue biopsy specimens for diagnostic analysis.10610310$380$397.9K
    J0585Injection, onabotulinumtoxina, 1 unit6580150$620$380.1K
    45380The provider examines the rectum and colon using a flexible colonoscope, a tubular instrument with a light source and camera, to look for the cause of a patient's symptoms, which may include…56390240$450$332.2K
    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…90019,110360$70$321K
    88305The physician, typically a pathologist, performs a level IV examination of a surgical pathology specimen. The examination includes accessioning the specimen into the lab, which involves formally…2856401,080$60$251.5K
    46221In this procedure, the provider ligates, or ties off, the base of a hemorrhoid inside the rectum with a rubber band. The provider performs this procedure to let the hemorrhoid dry out due to a lack…810850$200$250K
    45378The provider examines the colon and rectum using a colonoscope, a flexible tube with a camera at its inserted end. If he sees any areas of abnormal mucosa or tissue, he takes samples using a brush…48260140$500$245.2K

    Showing 1–10 of 64

    Nearby Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Longevity Health Services LLCNYHome Health Agency$0$428.6M
    Evergreen Homecare Service Of Ny IncNYHome Health Agency$0$112.7M
    Life Improvement Homecare, Inc.NYHome Health Agency$0$108.9M
    Red Sun Home Care Inc.NYHome Health Agency$0$87.7M
    Supreme Homecare Agency Of Ny IncNYHome Health Agency$0$71.5M
    Centerlight Healthcare, Inc.NYPACE Provider Organization$0$67.7M
    1st Class Care Services, Inc.NYHome Health Agency$0$61.5M
    Supreme Home Care Agency Of Ny IncNYHome Health Agency$0$58.5M
    Help Home Health Care Agency LLCNYHome Health Agency$0$48.9M
    Sunrise Senior Service LLCNYAdult Development & Aging Psychologist$0$45M

    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. New York Distribution
    Sing Chan — 1 of 17 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — New York
    Medicaid Revenue by Year vs. New York Providers
    4 of 7 years billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Claims Volume vs. New York Distribution
    Sing Chan — 10 of 25 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — New York