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

Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Sf Nassau Asc Llc
๐Ÿ”ช
Organization

Sf Nassau Asc Llc

NPI: 1760931349
Greenvale, NY
6 years of data
Ambulatory Surgical Center
$7.2M
Total Payments
6.1K
Beneficiaries
6.9K
Services
8.33x
Markup Ratio

Peer Comparison

95th
percentile in specialty
This provider$7.2M
Specialty median$657.1K

๐Ÿ“‹ Key Findings

1Billed $7.2M over 6 years
28.33x markup ratio (above median)
395th percentile in Ambulatory Surgical Center by payments
4Payments surged 90% in 2021
519 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $7.2M in total Medicare payments ranks in the 95th percentile of Ambulatory Surgical Center providers nationally.

Their average markup ratio of 8.33x is significantly above the specialty median of 6.1x.

Medicare payments to this provider grew 424% from 2018 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 90% in 2021

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
2018$6.5K$852.147.67x$5.7K$408.3K740632
2019$7.1K$897.137.93x$6.2K$638.7K1.0K871
2020$10.2K$1.2K8.30x$9.0K$829.4K843761
2021$11.9K$1.5K8.07x$10.4K$1.6M1.3K1.1K
2022$12.0K$1.4K8.28x$10.5K$1.6M1.4K1.2K
2023$12.4K$1.5K8.13x$10.9K$2.1M1.6K1.4K

Top Procedures (20)

27447Repair of knee jointโš  9.5x markup
$1.6M
197 services$8.1K/svc9.48x markup
25609Open treatment of broken of lower forearm or growth plate separation with insertion of hardware 3 or more fragments
$646.9K
172 services$3.8K/svc2.87x markup
27130Replacement of thigh bone and hip joint prosthesisโš  9.4x markup
$617.7K
75 services$8.2K/svc9.38x markup
49650Repair of groin hernia using an endoscopeโš  8.0x markup
$541.4K
335 services$1.6K/svc7.95x markup
29827Repair of shoulder rotator cuff using an endoscopeโš  3.8x markup
$494.0K
228 services$2.2K/svc3.75x markup
62323Injection of substance into spinal canal of lower back or sacrum using imaging guidanceโš  9.5x markup
$398.6K
1.4K services$283.06/svc9.49x markup
64721Release and/or relocation of median nerve of handโš  8.1x markup
$363.4K
510 services$712.63/svc8.10x markup
26055Incision of tendon coveringโš  10.3x markup
$315.0K
592 services$532.16/svc10.26x markup
29880Removal of both knee cartilages using an endoscopeโš  9.2x markup
$312.1K
265 services$1.2K/svc9.15x markup
47562Removal of gallbladder using an endoscopeโš  7.0x markup
$207.8K
101 services$2.1K/svc7.05x markup
64483Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidanceโš  12.1x markup
$161.6K
536 services$301.50/svc12.10x markup
29881Removal of one knee cartilage using an endoscopeโš  9.0x markup
$161.4K
137 services$1.2K/svc8.98x markup
29828Release of shoulder biceps tendon using an endoscopeโš  3.4x markup
$151.8K
55 services$2.8K/svc3.35x markup
64493Injections of lower or sacral spine facet joint using imaging guidanceโš  9.8x markup
$145.9K
513 services$284.32/svc9.78x markup
29848Release of wrist ligament using an endoscopeโš  16.3x markup
$134.0K
212 services$632.17/svc16.25x markup
19380Revision of reconstructed breastโš  10.3x markup
$115.6K
73 services$1.6K/svc10.35x markup
20680Removal of deep bone implantโš  9.6x markup
$74.1K
80 services$926.82/svc9.55x markup
25115Removal of fluid-filled sac (bursa) of wrist joint lining or forearm tendonโš  10.8x markup
$73.8K
140 services$527.28/svc10.76x markup
62321Injection of substance into spinal canal of upper or middle back using imaging guidanceโš  9.5x markup
$65.2K
230 services$283.44/svc9.49x markup
25447Removal of bone joints between wrist and fingersโš  8.7x markup
$62.2K
73 services$852.43/svc8.69x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
27447Repair of knee joint197$1.6M$8.1K9.48x
25609Open treatment of broken of lower forearm or growth plate separation with insertion of hardware 3 or more fragments172$646.9K$3.8K2.87x
27130Replacement of thigh bone and hip joint prosthesis75$617.7K$8.2K9.38x
49650Repair of groin hernia using an endoscope335$541.4K$1.6K7.95x
29827Repair of shoulder rotator cuff using an endoscope228$494.0K$2.2K3.75x
62323Injection of substance into spinal canal of lower back or sacrum using imaging guidance1.4K$398.6K$283.069.49x
64721Release and/or relocation of median nerve of hand510$363.4K$712.638.10x
26055Incision of tendon covering592$315.0K$532.1610.26x
29880Removal of both knee cartilages using an endoscope265$312.1K$1.2K9.15x
47562Removal of gallbladder using an endoscope101$207.8K$2.1K7.05x
64483Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidance536$161.6K$301.5012.10x
29881Removal of one knee cartilage using an endoscope137$161.4K$1.2K8.98x
29828Release of shoulder biceps tendon using an endoscope55$151.8K$2.8K3.35x
64493Injections of lower or sacral spine facet joint using imaging guidance513$145.9K$284.329.78x
29848Release of wrist ligament using an endoscope212$134.0K$632.1716.25x
19380Revision of reconstructed breast73$115.6K$1.6K10.35x
20680Removal of deep bone implant80$74.1K$926.829.55x
25115Removal of fluid-filled sac (bursa) of wrist joint lining or forearm tendon140$73.8K$527.2810.76x
62321Injection of substance into spinal canal of upper or middle back using imaging guidance230$65.2K$283.449.49x
25447Removal of bone joints between wrist and fingers73$62.2K$852.438.69x

Markup Analysis

Charge-to-Payment Ratio

8.33x

This provider submits charges 8.33 times higher than what Medicare actually pays.

What This Means

A markup ratio of 8.33x means for every $100 Medicare pays, this provider initially charges $833. This is higher than the national average.

Location

Greenvale, NY

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 NY for peer comparison.

Sf Nassau Asc Llc (you)
$7.2M
Island Eye Surgicenter Llc
$69.9M
Long Island Ambulatory Surgery Center, Llc
$41.6M
Syracuse Asc, Llc
$38.3M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Island Eye Surgicenter LlcWestbury, NY$69.9Mโœ“ Clear
Long Island Ambulatory Surgery Center, LlcBrentwood, NY$41.6Mโœ“ Clear
Syracuse Asc, LlcLiverpool, NY$38.3Mโœ“ 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