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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. Big Sky Surgery Center, Llc
๐Ÿ”ช
Organization

Big Sky Surgery Center, Llc

NPI: 1639158645
Missoula, MT
10 years of data
Ambulatory Surgical Center
$5.9M
Total Payments
7.9K
Beneficiaries
9.7K
Services
5.13x
Markup Ratio

Peer Comparison

94th
percentile in specialty
This provider$5.9M
Specialty median$657.1K

๐Ÿ“‹ Key Findings

1Billed $5.9M over 10 years
25.13x markup ratio (above median)
394th percentile in Ambulatory Surgical Center by payments
419 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $5.9M in total Medicare payments ranks in the 94th percentile of Ambulatory Surgical Center providers nationally.

Their average markup ratio of 5.13x is significantly above the specialty median of 6.1x.

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

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$2.7K$646.814.10x$2.0K$527.1K1.2K863
2015$3.2K$596.635.31x$2.6K$469.9K1.1K856
2016$3.7K$684.695.39x$3.0K$620.7K1.3K972
2017$2.9K$549.035.26x$2.3K$543.2K1.3K1.0K
2018$3.8K$875.444.38x$3.0K$777.5K1.5K1.1K
2019$3.2K$637.455.06x$2.6K$576.5K1.0K861
2020$4.1K$826.964.92x$3.2K$490.1K572531
2021$4.5K$956.374.74x$3.6K$515.2K524494
2022$5.1K$1.1K4.48x$4.0K$655.5K579544
2023$4.7K$1.2K3.93x$3.5K$736.2K675634

Top Procedures (20)

29827Repair of shoulder rotator cuff using an endoscopeโš  6.7x markup
$1.6M
824 services$2.0K/svc6.67x markup
64483Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidanceโš  5.0x markup
$397.1K
1.8K services$223.61/svc5.05x markup
64635Destruction of lower or sacral spinal facet joint nerves using imaging guidanceโš  3.8x markup
$376.6K
677 services$556.34/svc3.83x markup
52332Insertion of stent in urinary duct (ureter) using an endoscopeโš  3.7x markup
$310.1K
401 services$773.20/svc3.69x markup
23430Anchoring of biceps tendonโš  3.9x markup
$229.1K
161 services$1.4K/svc3.94x markup
64721Release and/or relocation of median nerve of handโš  4.6x markup
$212.6K
397 services$535.43/svc4.62x markup
29881Removal of one knee cartilage using an endoscopeโš  5.3x markup
$193.1K
210 services$919.42/svc5.26x markup
27447Replacement of knee joint, both sides of kneeโš  3.6x markup
$186.8K
27 services$6.9K/svc3.61x markup
52356Crushing of stone in urinary duct (ureter) with stent using an endoscopeโš  4.4x markup
$165.7K
113 services$1.5K/svc4.42x markup
52601Electro-removal of prostate through bladder canal (urethra) with control of bleeding using an endoscopeโš  4.2x markup
$164.8K
114 services$1.4K/svc4.23x markup
64493Injections of lower or sacral spine facet joint using imaging guidanceโš  4.5x markup
$153.7K
722 services$212.87/svc4.55x markup
62323Injection of substance into spinal canal of lower back or sacrum using imaging guidanceโš  6.7x markup
$151.5K
723 services$209.56/svc6.67x markup
62311Injections of substances into lower or sacral spineโš  5.2x markup
$149.7K
584 services$256.26/svc5.24x markup
31267Removal of nasal sinus tissue using an endoscopeโš  3.4x markup
$124.3K
135 services$920.68/svc3.37x markup
25609Open treatment of broken of lower forearm or growth plate separation with insertion of hardware 3 or more fragmentsโš  5.0x markup
$111.0K
35 services$3.2K/svc5.02x markup
52234Destruction and/or removal of (0.5 to 2.0 centimeters) small growths of the bladder using an endoscopeโš  3.6x markup
$98.3K
105 services$936.51/svc3.57x markup
C9740Cystourethroscopy, with insertion of transprostatic implant; 4 or more implants
$95.9K
20 services$4.8K/svc2.49x markup
26055Incision of tendon coveringโš  3.7x markup
$92.4K
216 services$427.97/svc3.67x markup
G0260Injection procedure for sacroiliac joint; provision of anesthetic, steroid and/or other therapeutic agent, with or without arthrographyโš  5.9x markup
$86.2K
433 services$199.07/svc5.87x markup
25447Removal of bone joints between wrist and fingersโš  6.5x markup
$82.8K
101 services$819.67/svc6.55x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
29827Repair of shoulder rotator cuff using an endoscope824$1.6M$2.0K6.67x
64483Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidance1.8K$397.1K$223.615.05x
64635Destruction of lower or sacral spinal facet joint nerves using imaging guidance677$376.6K$556.343.83x
52332Insertion of stent in urinary duct (ureter) using an endoscope401$310.1K$773.203.69x
23430Anchoring of biceps tendon161$229.1K$1.4K3.94x
64721Release and/or relocation of median nerve of hand397$212.6K$535.434.62x
29881Removal of one knee cartilage using an endoscope210$193.1K$919.425.26x
27447Replacement of knee joint, both sides of knee27$186.8K$6.9K3.61x
52356Crushing of stone in urinary duct (ureter) with stent using an endoscope113$165.7K$1.5K4.42x
52601Electro-removal of prostate through bladder canal (urethra) with control of bleeding using an endoscope114$164.8K$1.4K4.23x
64493Injections of lower or sacral spine facet joint using imaging guidance722$153.7K$212.874.55x
62323Injection of substance into spinal canal of lower back or sacrum using imaging guidance723$151.5K$209.566.67x
62311Injections of substances into lower or sacral spine584$149.7K$256.265.24x
31267Removal of nasal sinus tissue using an endoscope135$124.3K$920.683.37x
25609Open treatment of broken of lower forearm or growth plate separation with insertion of hardware 3 or more fragments35$111.0K$3.2K5.02x
52234Destruction and/or removal of (0.5 to 2.0 centimeters) small growths of the bladder using an endoscope105$98.3K$936.513.57x
C9740Cystourethroscopy, with insertion of transprostatic implant; 4 or more implants20$95.9K$4.8K2.49x
26055Incision of tendon covering216$92.4K$427.973.67x
G0260Injection procedure for sacroiliac joint; provision of anesthetic, steroid and/or other therapeutic agent, with or without arthrography433$86.2K$199.075.87x
25447Removal of bone joints between wrist and fingers101$82.8K$819.676.55x

Markup Analysis

Charge-to-Payment Ratio

5.13x

This provider submits charges 5.13 times higher than what Medicare actually pays.

What This Means

A markup ratio of 5.13x means for every $100 Medicare pays, this provider initially charges $513. This is higher than the national average.

Location

Missoula, MT

Provider Verification

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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.

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