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    v1.0.28
    OpenPayerNPI Medicare & MedicaidGregory Grimberg
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    Gregory Grimberg — Billing Profile & Reimbursement Data

    NPI 1104245307 · Mason City, IA · Surgery Physician

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    Gregory Grimberg is a surgery physician provider located in Mason City, Iowa. This profile covers 14 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.

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    Provider details (source: NPPES NPI Registry)

    FieldValue
    Entity TypeIndividual
    OrganizationGregory Grimberg
    Address250 S Crescent Dr
    CityMason City
    StateIA
    ZIP50401
    TaxonomySurgery Physician
    NPI EnumeratedApril 15, 2014

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

    Payer SourceTotal Paid
    Medicare$74.1K
    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.

    14 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    43281The provider performs repair of a paraesophageal hernia, where the stomach slides up next to the esophagus, using laparoscopy. He may also perform fundoplasty, wrapping part of the stomach around the…30$1,090$29.5K
    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…140$60$8K
    99215The provider sees an established 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…70$110$7.8K
    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.80$80$6.6K
    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…40$130$4.5K
    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…30$90$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$130$2.7K
    99214The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a moderate level of medical decision making, and/or the…40$70$2.5K
    91040The provider performs esophageal balloon dilation to determine whether the patient’s chest pain results from esophageal or cardiac causes. The procedure includes provocation, if performed.…50$40$2K
    91035The provider performs gastroesphageal reflux test to determine the backflow of acid from the stomach into the esophagus with telemetry pH electrode placement. He records and interprets the report.30$60$1.9K

    Showing 1–10 of 14

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 14 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    14 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    992143,6574,690100$70$14.4K
    4328121020$640$13.4K
    9923363091060$90$10.5K
    992325941,74080$60$9.3K
    432393915050$110$8.8K
    992234981,01040$120$7.3K
    992152701,22030$110$6.4K
    992041,3251,87030$100$5K
    9920525748020$140$4.2K
    992228431,27030$90$3.8K

    Showing 1–10 of 14

    Related Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Somc Medical Care Foundation, Inc.OHFamily Medicine Physician$0$25.3M
    North Iowa Mercy ClinicsIAEmergency Medicine Physician$0$3.9M
    North Iowa Mercy ClinicsIACardiovascular Disease Physician$0$2.7M
    North Iowa Mercy ClinicsIAPediatric Adolescent Medicine Physician$0$2.4M
    Mason City Clinic PCIAOtolaryngology Physician$0$1.1M
    Amad ZineldineAZCardiovascular Disease Physician$587K$0
    Yen Chen LiuIADermatology Physician$403.4K$0
    Kyle UlvelingIACardiovascular Disease Physician$325.1K$0
    Rakshak SardaIACardiovascular Disease Physician$320.7K$0
    Kevin OrcuttIARadiation Oncology Physician$297.2K$0

    Nearby Providers

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

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Mercy Health Services-iowa CorpIARural Acute Care Hospital$0$45.7M
    Prairie Ridge Integrated Behavioral HealthcareIASubstance Abuse Rehabilitation Facility$0$24.2M
    North Iowa Vocational CenterIADevelopmentally Disabled Services Day Training Agency$0$15.3M
    Mason City Community School DistrictIALocal Education Agency (LEA)$0$6.8M
    Community Health Center Of Fort Dodge, Inc.IAFederally Qualified Health Center (FQHC)$0$6.4M
    City Of Mason CityIALand Ambulance$616.5K$4.3M
    Todd HoeppnerIAPediatric Dentistry$0$4.8M
    North Iowa Transition CenterIACommunity/Behavioral Health Agency$0$3.7M
    Mason City Ambulatory Surgery Center, LLCIAAmbulatory Surgical Clinic/Center$2.2M$422.9K
    Good Shepherd Geriatric Center, Inc.IAAssisted Living Facility$0$2.5M

    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. Iowa Distribution
    Gregory Grimberg — 2 of 14 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Iowa