OpenMedicare
Start Here
Explore
Fraud
Investigations
Data
Tools
About

Footer

OpenMedicare

Independent Medicare data journalism

Sister Sites

  • OpenMedicaid
  • OpenFeds
  • OpenSpending

Explore

  • Providers
  • Procedures
  • States
  • Specialties
  • Search

Fraud Analysis

  • Still Out There (AI)
  • Fraud Overview
  • Fraud Watchlist
  • Deep Dive Profiles
  • Impossible Numbers
  • Report Fraud

Investigations

  • The Algorithm Knows
  • How We Built the Model
  • Internal Medicine Crisis
  • Florida & California Fraud
  • Million Dollar Flagged
  • All Investigations

Tools

  • Provider Lookup
  • Compare
  • Cost Calculator
  • Your Medicare Dollar
  • Downloads

About

  • About OpenMedicare
  • Methodology
  • Glossary
  • Data Sources
  • API Docs
  • Updates
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. Monterey Bay Endoscopy Center Llc
๐Ÿ”ช
Organization

Monterey Bay Endoscopy Center Llc

NPI: 1508818634
Monterey, CA
10 years of data
Ambulatory Surgical Center
$15.2M
Total Payments
35.6K
Beneficiaries
36.1K
Services
3.39x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$15.2M
Specialty median$657.1K

๐Ÿ“‹ Key Findings

1Billed $15.2M over 10 years
23.39x markup ratio (above median)
398th percentile in Ambulatory Surgical Center by payments
410 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $15.2M in total Medicare payments ranks in the 98th percentile of Ambulatory Surgical Center providers nationally.

Medicare payments to this provider grew 128% 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

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$622.79$326.961.90x$295.83$1.0M3.0K2.9K
2015$1.0K$374.852.68x$629.28$1.1M3.1K3.0K
2016$1.5K$395.523.77x$1.1K$1.3M3.5K3.4K
2017$1.5K$421.473.60x$1.1K$1.5M3.8K3.7K
2018$1.5K$392.093.80x$1.1K$1.5M3.9K3.8K
2019$1.5K$448.313.32x$1.0K$1.6M3.7K3.7K
2020$1.5K$448.193.33x$1.0K$1.4M3.2K3.1K
2021$1.6K$468.643.31x$1.1K$1.6M3.5K3.5K
2022$1.6K$468.923.31x$1.1K$1.8M3.9K3.9K
2023$1.6K$603.722.59x$961.59$2.3M4.5K4.5K

Top Procedures (18)

45385Removal of polyps or growths of large bowel using an endoscope
$5.2M
9.9K services$521.05/svc2.82x markup
45380Biopsy of large bowel using an endoscopeโš  3.8x markup
$3.5M
9.0K services$387.17/svc3.81x markup
43239Biopsy of the esophagus, stomach, and/or upper small bowel using an endoscopeโš  4.5x markup
$2.2M
7.3K services$306.11/svc4.52x markup
G0105Colorectal cancer screening; colonoscopy on individual at high risk
$1.3M
2.6K services$489.26/svc2.64x markup
G0121Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk
$874.0K
1.8K services$479.96/svc2.65x markup
45378Diagnostic examination of large bowel using an endoscopeโš  3.9x markup
$430.1K
1.2K services$363.90/svc3.94x markup
43249Balloon dilation of esophagus using an endoscope
$376.9K
545 services$691.47/svc2.10x markup
45381Injections of large bowel using an endoscopeโš  5.3x markup
$345.5K
1.3K services$275.08/svc5.25x markup
43235Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscopeโš  4.2x markup
$337.0K
1.0K services$333.01/svc4.16x markup
43248Insertion of guide wire with dilation of esophagus using an endoscopeโš  4.2x markup
$262.7K
748 services$351.27/svc4.16x markup
43251Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope
$236.6K
351 services$674.12/svc2.10x markup
45390Removal of large bowel tissue using an endoscope
$36.1K
38 services$949.55/svc1.84x markup
43450Dilation of esophagusโš  3.2x markup
$32.4K
107 services$302.88/svc3.23x markup
45331Biopsy of large bowel using an endoscopeโš  3.8x markup
$23.8K
78 services$305.51/svc3.81x markup
45388Destruction of large bowel growths using an endoscopeโš  3.1x markup
$10.7K
24 services$444.08/svc3.07x markup
43255Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope
$9.2K
11 services$836.30/svc1.79x markup
45383Removal of polyps or growths in large bowel using an endoscope
$4.9K
19 services$259.80/svc2.32x markup
45330Diagnostic examination of large bowel using an endoscopeโš  10.9x markup
$2.5K
23 services$106.95/svc10.87x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
45385Removal of polyps or growths of large bowel using an endoscope9.9K$5.2M$521.052.82x
45380Biopsy of large bowel using an endoscope9.0K$3.5M$387.173.81x
43239Biopsy of the esophagus, stomach, and/or upper small bowel using an endoscope7.3K$2.2M$306.114.52x
G0105Colorectal cancer screening; colonoscopy on individual at high risk2.6K$1.3M$489.262.64x
G0121Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk1.8K$874.0K$479.962.65x
45378Diagnostic examination of large bowel using an endoscope1.2K$430.1K$363.903.94x
43249Balloon dilation of esophagus using an endoscope545$376.9K$691.472.10x
45381Injections of large bowel using an endoscope1.3K$345.5K$275.085.25x
43235Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope1.0K$337.0K$333.014.16x
43248Insertion of guide wire with dilation of esophagus using an endoscope748$262.7K$351.274.16x
43251Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope351$236.6K$674.122.10x
45390Removal of large bowel tissue using an endoscope38$36.1K$949.551.84x
43450Dilation of esophagus107$32.4K$302.883.23x
45331Biopsy of large bowel using an endoscope78$23.8K$305.513.81x
45388Destruction of large bowel growths using an endoscope24$10.7K$444.083.07x
43255Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope11$9.2K$836.301.79x
45383Removal of polyps or growths in large bowel using an endoscope19$4.9K$259.802.32x
45330Diagnostic examination of large bowel using an endoscope23$2.5K$106.9510.87x

Markup Analysis

Charge-to-Payment Ratio

3.39x

This provider submits charges 3.39 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.39x means for every $100 Medicare pays, this provider initially charges $339. This is higher than the national average.

Location

Monterey, 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.

Monterey Bay Endoscopy Center Llc (you)
$15.2M
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

Related

Browse
โ† Back to Provider Directory
State
All providers in CA โ†’
Specialty
All Ambulatory Surgical Center providers โ†’
Tool
Compare this provider โ†’
Analysis
Fraud Watchlist โ†’
Search
Search all providers โ†’

Share This Provider

Share this provider's Medicare payment information

Share:

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