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 & MedicaidCastle Ambulatory Surgery Center, LLC
    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

    Castle Ambulatory Surgery Center, LLC — Billing Profile & Reimbursement Data

    NPI 1447415278 · Kailua, HI · Ambulatory Surgical Clinic/Center

    Customize your policy alerts

    Sign up for Castle Ambulatory Surgery Center, LLC — 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.

    Castle Ambulatory Surgery Center, LLC is a ambulatory surgical clinic/center provider located in Kailua, Hawaii. This profile covers 10 Medicare and 2 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 TypeOrganization
    OrganizationCastle Ambulatory Surgery Center, LLC
    Address642 Ulukahiki St
    CityKailua
    StateHI
    ZIP96734
    TaxonomyAmbulatory Surgical Clinic/Center
    NPI EnumeratedJuly 21, 2008

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

    Payer SourceTotal Paid
    Medicare$391.8K
    Medicaid$114.9K

    Key Findings

    CASTLE AMBULATORY SURGERY CENTER, LLC bills predominantly for GI and ophthalmologic ambulatory procedures, consistent with its taxonomy as an Ambulatory Surgical Clinic/Center. Medicare top codes include 45380 (colonoscopy with biopsy), 66984 (routine extracapsular cataract extraction with IOL), and 45385 (colonoscopy with polypectomy), while Medicaid billing is almost entirely dominated by 45380 and 43239 (EGD with biopsy), indicating the center’s operations are concentrated on endoscopy and cataract work rather than broad multi-specialty inpatient services.

    Revenue concentration on Medicare is high: the precomputed top 3 Medicare codes by revenue account for 66.6% of this provider’s total Medicare revenue, driven by 45380 (29.3% of Medicare revenue), 66984 (19.3%), and 45385 (17.9%). This concentration suggests that a relatively small set of procedure lines—primarily colonoscopy and cataract surgery—drive the majority of Medicare receipts.

    Medicaid revenue is extremely concentrated: the precomputed top 3 Medicaid codes account for 100.0% of the provider’s total Medicaid revenue, with 45380 alone representing $103.6K or 90.2% of Medicaid revenue and 43239 contributing the remaining 9.8%. In practice, this means Medicaid activity is nearly synonymous with colonoscopic services at this facility.

    On payer mix, the provider reports $391.8K in lifetime Medicare revenue compared with $114.9K in lifetime Medicaid revenue, so Medicare is the materially larger payer relationship for this facility. The presence of both payers indicates mixed payer activity, but Medicare is the primary source of fee-for-service revenue on the record.

    Competitive standing by code is mixed: for Medicare 45380 the provider ranks #680 of 16427 nationally (96th percentile) and is described as notably above typical national volume, signaling national-level strength for that colonoscopy code. By contrast, Medicare 66984 ranks #8949 of 15965 (44th percentile) and 45385 ranks #2846 of 16310 (82th percentile), both labeled as typical or unremarkable volume, and Medicaid rankings for 45380 (#10 of 20; 53th percentile) and 43239 (#26 of 31; 17th percentile) position the center as a modest in-state participant rather than a dominant statewide provider.

    Observed unit economics vary across payers and procedures: Medicare average paid per claim is $419 for 45380 and $971 for 66984, while Medicaid average paid per claim is $484 for 45380 and $433 for 43239 as reported. These per-claim payment levels, combined with the claim counts (e.g., Medicare 45380: 274 claims; Medicaid 45380: 214 claims), indicate substantial utilization of colonoscopy services across both payers even as procedure-level reimbursement differs by code and payer.

    The provider has an established presence, with an NPI enumeration date of 2008-07-21 (~18 years ago), suggesting long-standing operation in Kailua, HI. Despite multi-year tenure, the lifetime reported Medicare ($391.8K) and Medicaid ($114.9K) revenue figures imply a relatively modest overall billing scale for an ambulatory surgery center, concentrated in a few high-volume procedure lines.

    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.

    10 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    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…270$420$114.8K
    66984The provider inserts an artificial lens after removing an extracapsular cataract by aspiration or use of ultrasonic waves. This procedure is done without the use of an endoscopic laser probe to…80$970$75.7K
    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…130$520$70.2K
    66982The provider inserts an intraocular lens prosthesis after extracapsular cataract extraction using complex techniques and devices. He may perform this by means of an iris expansion device, providing…30$990$32.7K
    J1097phenylephrine 10.16 mg/ml and ketorolac 2.88 mg/ml ophthalmic irrigation solution, 1 ml430$80$32.5K
    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.120$260$30.9K
    43251An esophagogastroduodenoscopy is a procedure to view the esophagus, stomach, and duodenum by means of flexible endoscope through the mouth. The physician removes one or more lesions using a snare…20$700$10.5K
    G0121Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk20$470$9.9K
    G0105Colorectal cancer screening; colonoscopy on individual at high risk20$480$9.6K
    45381The provider inserts a flexible endoscope into the anus and navigates the scope through the entire colon. The provider performs one or more injections into the submucosa (the tissue below the mucous…20$320$4.8K

    Medicare: Competitive Analysis & Benchmarks

    How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 10 CPT/HCPCS codes.

    View: State1 / 2

    Full comparison — all codes billed, vs. state median

    10 rows

    CPT/HCPCS CodeRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    J1097210430$80$152.2K
    66984287060$640$88.9K
    6698282030$770$25.5K
    4538575040$320$23.5K
    4538046050$210$16.1K
    4323985050$130$8.4K
    G0105121030$270$8.1K
    G012192020$310$7.8K
    4325141020$430$7.7K
    4538161020$150$5.6K

    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.

    2 rows

    CPT/HCPCS CodeDescriptionClaimsAvg PaidRevenue
    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…210$480$103.6K
    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.30$430$11.3K

    Medicaid: Competitive Analysis & Benchmarks

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

    Full comparison — all codes billed, vs. Hawaii median

    2 rows

    CPT/HCPCS CodeDescriptionRankProvider CountMedian ClaimsAvg PaidAverage Revenue
    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…1020190$340$177.3K
    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.2630100$280$111.1K

    Nearby Providers

    Other providers in the same ZIP code as Castle Ambulatory Surgery Center, LLC, ranked by combined Medicare and Medicaid revenue.

    ProviderStateTaxonomyMedicare RevenueMedicaid Revenue
    Castle Medical CenterHIGeneral Acute Care Hospital$0$37.6M
    Hawaii Emergency Physicians Associated IncHIEmergency Medicine Physician$0$20.2M
    Howard Y Kim Dds IncHIPediatric Dentistry$0$3.3M
    Liberty Dialysis - Hawaii LLCHIEnd-Stage Renal Disease (ESRD) Treatment Clinic/Center$0$3.1M
    Pacific Island Medical, Inc.HIDurable Medical Equipment & Medical Supplies$0$2.8M
    Hawaii Dermatology Centers, IncHISpecialist$0$1.4M
    Medical Clinic, Inc.HIMulti-Specialty Clinic/Center$0$1.3M
    Kupunaride CorporationHINon-emergency Medical Transport (VAN)$0$943.9K
    Stuart Lerner, M.d. LLCHIFamily Medicine Physician$0$920.4K
    Windward Heart Center LLCHICardiovascular Disease Physician$0$885K

    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. Hawaii Distribution
    Castle Ambulatory Surgery Center, LLC — 0 of 10 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Hawaii
    Medicaid Revenue by Year vs. Hawaii Providers
    0 of 7 years billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Claims Volume vs. Hawaii Distribution
    Castle Ambulatory Surgery Center, LLC — 0 of 2 codes billed far more than typical (above p95)
    p5–p95 (all providers)p25–p75MedianThis providerOutlier
    Rank Distribution — Hawaii