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Data Sources: Centers for Medicare & Medicaid Services (CMS), Medicare Provider Utilization and Payment Data
Disclaimer: This site is an independent journalism project. Data analysis and editorial content are not affiliated with or endorsed by CMS or any government agency. All spending figures are based on publicly available Medicare payment records.
Sister Sites: OpenMedicaid ยท OpenFeds ยท OpenSpending

ยฉ 2026 OpenMedicare. Independent data journalism. Built by TheDataProject.ai

Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Westmont Surgery Center Llc
๐Ÿ”ช
Organization

Westmont Surgery Center Llc

NPI: 1295897106
Westmont, IL
10 years of data
Ambulatory Surgical Center
$6.7M
Total Payments
4.9K
Beneficiaries
6.0K
Services
5.56x
Markup Ratio

Peer Comparison

95th
percentile in specialty
This provider$6.7M
Specialty median$657.1K

๐Ÿ“‹ Key Findings

1Billed $6.7M over 10 years
25.56x markup ratio (above median)
395th percentile in Ambulatory Surgical Center by payments
4Payments surged 95% in 2022
520 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $6.7M in total Medicare payments ranks in the 95th percentile of Ambulatory Surgical Center providers nationally.

Their average markup ratio of 5.56x is significantly above the specialty median of 6.1x.

Medicare payments to this provider grew 329% from 2014 to 2023.

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

๐Ÿ“ˆ

Notable: Payments increased 95% in 2022

Year-over-year payment surges can indicate changes in practice volume, new services, or billing pattern shifts.

Submitted Charges vs. Medicare Payments

Average per-service amounts submitted by the provider compared to what Medicare actually paid โ€” the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$2.1K$816.352.59x$1.3K$358.5K813549
2015$2.2K$803.782.70x$1.4K$337.7K709511
2016$3.8K$869.914.32x$2.9K$271.1K550384
2017$6.1K$994.216.10x$5.1K$335.2K539405
2018$10.0K$1.6K6.18x$8.4K$471.3K565449
2019$9.5K$1.6K6.10x$7.9K$555.6K600460
2020$9.3K$1.6K5.75x$7.7K$528.9K463406
2021$9.7K$1.6K5.98x$8.0K$782.3K625566
2022$12.4K$2.2K5.75x$10.3K$1.5M586557
2023$14.3K$2.5K5.70x$11.8K$1.5M598574

Top Procedures (20)

27447Repair of knee jointโš  5.4x markup
$1.3M
186 services$6.9K/svc5.44x markup
27130Replacement of thigh bone and hip joint with prosthesisโš  4.6x markup
$721.2K
100 services$7.2K/svc4.59x markup
29827Repair of shoulder rotator cuff using an endoscopeโš  5.1x markup
$685.6K
368 services$1.9K/svc5.13x markup
27446Repair of knee jointโš  6.8x markup
$569.3K
86 services$6.6K/svc6.82x markup
64483Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidanceโš  5.2x markup
$518.7K
2.0K services$253.13/svc5.17x markup
25609Open treatment of broken of lower forearm or growth plate separation with insertion of hardware 3 or more fragmentsโš  3.9x markup
$511.0K
173 services$3.0K/svc3.89x markup
64721Release and/or relocation of median nerve of handโš  5.8x markup
$443.5K
741 services$598.50/svc5.83x markup
29881Removal of one knee cartilage using an endoscopeโš  5.5x markup
$346.9K
349 services$993.99/svc5.46x markup
23430Anchoring of biceps tendonโš  6.1x markup
$247.0K
147 services$1.7K/svc6.13x markup
29828Release of shoulder biceps tendon using an endoscopeโš  5.3x markup
$244.7K
110 services$2.2K/svc5.25x markup
29880Removal of both knee cartilages using an endoscopeโš  5.0x markup
$216.7K
220 services$985.21/svc4.96x markup
26055Incision of tendon coveringโš  5.9x markup
$212.9K
450 services$473.14/svc5.90x markup
29860Diagnostic examination of hip using an endoscopeโš  4.6x markup
$129.1K
59 services$2.2K/svc4.60x markup
29823Extensive removal of shoulder joint tissue using an endoscopeโš  11.3x markup
$111.2K
201 services$553.14/svc11.29x markup
29824Partial removal of collar bone at shoulder using an endoscopeโš  11.5x markup
$100.1K
186 services$538.27/svc11.52x markup
29848Release of wrist ligament using an endoscopeโš  11.9x markup
$83.3K
154 services$540.72/svc11.89x markup
20680Removal of deep bone implantโš  4.5x markup
$60.8K
79 services$769.02/svc4.51x markup
25608Open treatment of broken of lower forearm or growth plate separation with insertion of hardware of 2 fragmentsโš  4.3x markup
$46.8K
15 services$3.1K/svc4.31x markup
62311Injections of substances into lower or sacral spineโš  3.9x markup
$38.2K
135 services$282.93/svc3.85x markup
27570Alignment of knee joint under anesthesiaโš  5.7x markup
$31.3K
57 services$548.42/svc5.66x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
27447Repair of knee joint186$1.3M$6.9K5.44x
27130Replacement of thigh bone and hip joint with prosthesis100$721.2K$7.2K4.59x
29827Repair of shoulder rotator cuff using an endoscope368$685.6K$1.9K5.13x
27446Repair of knee joint86$569.3K$6.6K6.82x
64483Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidance2.0K$518.7K$253.135.17x
25609Open treatment of broken of lower forearm or growth plate separation with insertion of hardware 3 or more fragments173$511.0K$3.0K3.89x
64721Release and/or relocation of median nerve of hand741$443.5K$598.505.83x
29881Removal of one knee cartilage using an endoscope349$346.9K$993.995.46x
23430Anchoring of biceps tendon147$247.0K$1.7K6.13x
29828Release of shoulder biceps tendon using an endoscope110$244.7K$2.2K5.25x
29880Removal of both knee cartilages using an endoscope220$216.7K$985.214.96x
26055Incision of tendon covering450$212.9K$473.145.90x
29860Diagnostic examination of hip using an endoscope59$129.1K$2.2K4.60x
29823Extensive removal of shoulder joint tissue using an endoscope201$111.2K$553.1411.29x
29824Partial removal of collar bone at shoulder using an endoscope186$100.1K$538.2711.52x
29848Release of wrist ligament using an endoscope154$83.3K$540.7211.89x
20680Removal of deep bone implant79$60.8K$769.024.51x
25608Open treatment of broken of lower forearm or growth plate separation with insertion of hardware of 2 fragments15$46.8K$3.1K4.31x
62311Injections of substances into lower or sacral spine135$38.2K$282.933.85x
27570Alignment of knee joint under anesthesia57$31.3K$548.425.66x

Markup Analysis

Charge-to-Payment Ratio

5.56x

This provider submits charges 5.56 times higher than what Medicare actually pays.

What This Means

A markup ratio of 5.56x means for every $100 Medicare pays, this provider initially charges $556. This is higher than the national average.

Location

Westmont, IL

Provider Verification

Always verify provider credentials and location before scheduling appointments. This data reflects Medicare payments and may not include all practice locations.

Similar Providers

Other Ambulatory Surgical Center providers in IL for peer comparison.

Westmont Surgery Center Llc (you)
$6.7M
Dupage Eye Surgery Center, Llc
$37.8M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Dupage Eye Surgery Center, LlcWheaton, IL$37.8Mโœ“ Clear

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Data Sources

  • โ€ข Centers for Medicare & Medicaid Services (CMS)
  • โ€ข Medicare Provider Utilization and Payment Data (2014-2023)
  • โ€ข National Plan and Provider Enumeration System (NPPES)

Last Updated: February 2026 (data through 2023, the latest CMS release)

Note: All data is from publicly available Medicare records. OpenMedicare is an independent journalism project not affiliated with CMS.

Believe this data is inaccurate? Dispute this data