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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. Sierra Endoscopy Center, Llc
๐Ÿ”ช
Organization

Sierra Endoscopy Center, Llc

NPI: 1760440515
Grass Valley, CA
10 years of data
Ambulatory Surgical Center
$9.6M
Total Payments
25.8K
Beneficiaries
26.1K
Services
4.44x
Markup Ratio

Peer Comparison

97th
percentile in specialty
This provider$9.6M
Specialty median$657.1K

๐Ÿ“‹ Key Findings

1Billed $9.6M over 10 years
24.44x markup ratio (above median)
397th percentile in Ambulatory Surgical Center by payments
414 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $9.6M in total Medicare payments ranks in the 97th percentile of Ambulatory Surgical Center providers nationally.

This provider's billing patterns fall within normal ranges for their specialty.

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$1.4K$304.454.57x$1.1K$840.1K2.6K2.6K
2015$1.4K$334.014.17x$1.1K$944.0K2.7K2.7K
2016$1.4K$375.613.82x$1.1K$908.8K2.5K2.5K
2017$1.4K$352.093.95x$1.0K$965.7K2.7K2.7K
2018$1.4K$352.733.95x$1.0K$1.1M3.1K3.0K
2019$1.4K$349.304.08x$1.1K$1.0M2.8K2.8K
2020$1.3K$353.233.67x$943.37$879.7K2.3K2.3K
2021$1.4K$377.093.61x$982.91$931.5K2.4K2.4K
2022$1.3K$381.243.42x$924.21$931.3K2.4K2.3K
2023$2.9K$392.297.29x$2.5K$1.1M2.6K2.6K

Top Procedures (15)

45385Removal of polyps or growths of large bowel using an endoscopeโš  4.2x markup
$2.8M
6.7K services$417.20/svc4.20x markup
43239Biopsy of the esophagus, stomach, and/or upper small bowel using an endoscopeโš  5.4x markup
$2.2M
7.9K services$283.49/svc5.40x markup
G0105Colorectal cancer screening; colonoscopy on individual at high riskโš  4.0x markup
$1.5M
3.7K services$399.06/svc4.00x markup
45380Biopsy of large bowel using an endoscopeโš  4.6x markup
$896.4K
2.5K services$364.53/svc4.58x markup
43249Balloon dilation of esophagus using an endoscope
$698.8K
1.2K services$578.02/svc2.80x markup
G0121Colorectal cancer screening; colonoscopy on individual not meeting criteria for high riskโš  4.5x markup
$501.4K
1.2K services$405.00/svc4.48x markup
45388Destruction of large bowel growths using an endoscopeโš  4.0x markup
$404.8K
979 services$413.49/svc3.99x markup
45378Diagnostic examination of large bowel using an endoscopeโš  5.5x markup
$331.4K
1.0K services$327.49/svc5.46x markup
45383Removal of polyps or growths in large bowel using an endoscopeโš  5.5x markup
$82.9K
287 services$288.76/svc5.54x markup
43235Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscopeโš  4.1x markup
$51.8K
156 services$332.24/svc4.14x markup
45331Biopsy of large bowel using an endoscopeโš  3.7x markup
$39.9K
145 services$275.46/svc3.73x markup
45381Injections of large bowel using an endoscopeโš  4.6x markup
$38.8K
149 services$260.22/svc4.64x markup
43450Dilation of esophagusโš  4.9x markup
$31.8K
139 services$228.78/svc4.86x markup
45382Control of bleeding in large bowel using an endoscopeโš  7.1x markup
$2.5K
11 services$225.38/svc7.10x markup
45330Diagnostic exam of lower portion of large bowel using a flexible endoscopeโš  17.7x markup
$1.3K
11 services$115.35/svc17.72x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
45385Removal of polyps or growths of large bowel using an endoscope6.7K$2.8M$417.204.20x
43239Biopsy of the esophagus, stomach, and/or upper small bowel using an endoscope7.9K$2.2M$283.495.40x
G0105Colorectal cancer screening; colonoscopy on individual at high risk3.7K$1.5M$399.064.00x
45380Biopsy of large bowel using an endoscope2.5K$896.4K$364.534.58x
43249Balloon dilation of esophagus using an endoscope1.2K$698.8K$578.022.80x
G0121Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk1.2K$501.4K$405.004.48x
45388Destruction of large bowel growths using an endoscope979$404.8K$413.493.99x
45378Diagnostic examination of large bowel using an endoscope1.0K$331.4K$327.495.46x
45383Removal of polyps or growths in large bowel using an endoscope287$82.9K$288.765.54x
43235Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope156$51.8K$332.244.14x
45331Biopsy of large bowel using an endoscope145$39.9K$275.463.73x
45381Injections of large bowel using an endoscope149$38.8K$260.224.64x
43450Dilation of esophagus139$31.8K$228.784.86x
45382Control of bleeding in large bowel using an endoscope11$2.5K$225.387.10x
45330Diagnostic exam of lower portion of large bowel using a flexible endoscope11$1.3K$115.3517.72x

Markup Analysis

Charge-to-Payment Ratio

4.44x

This provider submits charges 4.44 times higher than what Medicare actually pays.

What This Means

A markup ratio of 4.44x means for every $100 Medicare pays, this provider initially charges $444. This is higher than the national average.

Location

Grass Valley, CA

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 CA for peer comparison.

Sierra Endoscopy Center, Llc (you)
$9.6M
Specialty Surgical Center, Llc
$49.2M
Santa Rosa Surgery Center L P
$41.3M
Peninsula Eye Surgery Center Llc
$37.0M
Fort Sutter Surgery Center A California Limited Partnership
$33.6M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Specialty Surgical Center, LlcBeverly Hills, CA$49.2Mโœ“ Clear
Santa Rosa Surgery Center L PSanta Rosa, CA$41.3Mโœ“ Clear
Peninsula Eye Surgery Center LlcMountain View, CA$37.0Mโœ“ Clear
Fort Sutter Surgery Center A California Limited PartnershipSacramento, CA$33.6Mโœ“ 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.

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