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 & MedicaidBac Nguyen
    Ask Trek AI about this page

    Table of contents

    Progress1 / 11

    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

    Bac Nguyen — Billing Profile & Reimbursement Data

    NPI 1851400527 · West Covina, CA · Otolaryngology Physician

    Customize your policy alerts

    Sign up for Bac Nguyen — 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.

    Bac Nguyen is a otolaryngology physician provider located in West Covina, California. This profile covers 18 Medicare and 7 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
    OrganizationBac Nguyen
    Address933 S Sunset Avenue
    CityWest Covina
    StateCA
    ZIP91790
    TaxonomyOtolaryngology Physician
    NPI EnumeratedAugust 29, 2006

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

    Payer SourceTotal Paid
    Medicare$521.6K
    Medicaid$117.4K

    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.

    18 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    69610The provider repairs a perforated eardrum, which may include site preparation, or roughening of the site before closure. The procedure may also include applying a paper patch to the closure.520$320$165.1K
    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…1,480$70$105.3K
    31231In this procedure, the provider inserts an endoscope into the nasal cavity to examine the structures of the nasal cavity on one or both sides.500$160$80K
    99232The provider sees a patient for a subsequent hospital inpatient or observation care visit involving evaluation and management (E/M). The visit involves a moderate level of medical decision making or…560$60$35.3K
    31505The provider uses a laryngeal mirror to look inside the larynx (voice box) to detect any abnormalities. This code represents a diagnostic procedure.410$70$30.1K
    69200The provider removes a foreign body from the external auditory canal without the use of general anesthesia.730$40$29.9K
    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…100$140$13.7K
    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…140$90$11.6K
    31237In this procedure, the provider inserts an endoscope into the nasal cavity. She examines the nasal contents. The provider then performs a nasal biopsy, polypectomy, or debridement.50$210$9.4K
    31575The provider uses a flexible laryngoscope to look inside the larynx, or voice box, to detect the presence of any abnormalities. This code applies to diagnostic services.70$80$5.8K

    Showing 1–10 of 18

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 18 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    18 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    69610110270$320$84.9K
    992339,21111,530120$100$26.2K
    9921425,69637,970120$90$23.2K
    312311954070$100$20.1K
    992321,21412,28090$70$16.3K
    312374211040$280$14.3K
    9921347334,66080$70$13.2K
    992233,10613,19050$140$11.3K
    3157522261050$100$7.3K
    992049,11219,36040$120$7.2K

    Showing 1–10 of 18

    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.

    7 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    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…2,490$40$94.5K
    69610The provider repairs a perforated eardrum, which may include site preparation, or roughening of the site before closure. The procedure may also include applying a paper patch to the closure.790$20$15K
    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…70$50$3.4K
    31231In this procedure, the provider inserts an endoscope into the nasal cavity to examine the structures of the nasal cavity on one or both sides.370$10$3.3K
    69200The provider removes a foreign body from the external auditory canal without the use of general anesthesia.510$1$1.5K
    69220The provider cleans out the cavity left by a mastoidectomy. Patients sometimes require one or more debridement procedures after mastoidectomy before the cavity settles down, i.e., dries out.100$10$690
    31505The provider uses a laryngeal mirror to look inside the larynx (voice box) to detect any abnormalities. This code represents a diagnostic procedure.40$1$80

    Medicaid: Competitive Analysis & Benchmarks

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

    Full comparison — all codes billed, vs. California median

    7 rows

    CPT/HCPCS CodeDescriptionRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    31231In this procedure, the provider inserts an endoscope into the nasal cavity to examine the structures of the nasal cavity on one or both sides.70170200$80$124.2K
    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…4,53514,520760$10$122.8K
    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…3,7435,590180$50$62.4K
    69610The provider repairs a perforated eardrum, which may include site preparation, or roughening of the site before closure. The procedure may also include applying a paper patch to the closure.110790$20$15.3K
    69200The provider removes a foreign body from the external auditory canal without the use of general anesthesia.42030$30$13.9K
    31505The provider uses a laryngeal mirror to look inside the larynx (voice box) to detect any abnormalities. This code represents a diagnostic procedure.21040$60$3.4K
    69220The provider cleans out the cavity left by a mastoidectomy. Patients sometimes require one or more debridement procedures after mastoidectomy before the cavity settles down, i.e., dries out.210300$1$640

    Related Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Johnson LeeCAPlastic Surgery Physician$22.5M$0
    James MichailCAGeriatric Medicine (Family Medicine) Physician$20.4M$86.8K
    Leo PolosajianCAClinical Cardiac Electrophysiology Physician$6M$1.6M
    Humberto VillalvazoORFamily Medicine Physician$4.3M$0
    Jonathan EskenaziCANeurology Physician$2.9M$407.6K
    Gerald HoCARheumatology Physician$2.5M$745.5K
    Sean AdreanCARetina Specialist (Ophthalmology) Physician$3.1M$163.9K
    Desmond McguireCARetina Specialist (Ophthalmology) Physician$1.4M$1.1M
    Rizwan NuraniCARadiation Oncology Physician$2.4M$0
    Frank LusherCADermatology Physician$241.3K$2.2M

    Nearby Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Altamed Health Services CorpCAFederally Qualified Health Center (FQHC)$0$83.6M
    East Valley Community Health Center, Inc.CAFederally Qualified Health Center (FQHC)$0$34.5M
    Premier Healthcare Services, LLCCAHome Health Agency$0$28.7M
    Emanate Health Medical CenterCAGeneral Acute Care Hospital$0$23.5M
    Philip NgaiCAGlaucoma Specialist (Ophthalmology) Physician$1.2M$0
    Catherine Noel-uyloanCAGeneral Practice Physician$1.2M$0
    Brian LeberthonCAHematology & Oncology Physician$333.1K$542.4K
    Harold GomezCALicensed Practical Nurse$45.2K$825.1K
    Joseph LinCAOphthalmology Physician$187K$0
    Gerald GrossmanCADiagnostic Radiology Physician$130.7K$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
    Bac Nguyen — 5 of 18 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — California
    Medicaid Revenue by Year vs. California Providers
    0 of 7 years billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Claims Volume vs. California Distribution
    Bac Nguyen — 0 of 7 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — California