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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. Dae Rheem
๐Ÿฅ
MDIndividual

Dae Rheem, M.D.

NPI: 1295915585
Los Angeles, CA
10 years of data
Gastroenterology
$7.3M
Total Payments
75.6K
Beneficiaries
135.6K
Services
2.77x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$7.3M
Specialty median$87.0K

๐Ÿ“‹ Key Findings

1Billed $7.3M over 10 years
22.77x markup ratio (above median)
399th percentile in Gastroenterology by payments
454 services/day โ€” unusually high
5Payments surged 116% in 2015
63 procedures with >3x markup

This provider averages 54 services per working day

Based on 135.6K total services over 10 years (250 working days/year). Learn about impossible service volumes โ†’

๐Ÿ”Ž Data Analysis

This provider's $7.3M in total Medicare payments ranks in the 99th percentile of Gastroenterology providers nationally.

Averaging 54 services per working day raises questions about billing patterns.

Medicare payments to this provider grew 61% 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 116% in 2015

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$221.32$87.642.53x$133.68$338.4K4.8K3.2K
2015$223.31$92.152.42x$131.16$729.6K11.2K6.7K
2016$266.42$74.823.56x$191.60$711.8K13.7K7.5K
2017$212.41$66.583.19x$145.83$829.6K17.6K9.3K
2018$172.66$56.783.04x$115.88$835.6K17.0K8.4K
2019$160.93$59.802.69x$101.13$845.4K17.5K9.6K
2020$151.50$57.092.65x$94.41$852.1K16.5K9.1K
2021$207.56$60.663.42x$146.90$846.6K16.3K9.6K
2022$188.75$58.463.23x$130.29$749.4K11.4K6.7K
2023$207.70$52.733.94x$154.97$543.6K9.6K5.4K

Top Procedures (20)

99213Established patient office or other outpatient visit, typically 15 minutes
$1.5M
22.4K services$66.20/svc1.89x markup
76700Ultrasound of abdomen
$1.0M
9.6K services$108.66/svc1.99x markup
76536Ultrasound of head and neck
$962.2K
9.2K services$104.84/svc2.01x markup
76770Ultrasound behind abdominal cavity
$807.7K
9.3K services$87.15/svc2.37x markup
43239Biopsy of the esophagus, stomach, and/or upper small bowel using an endoscopeโš  6.7x markup
$600.2K
4.5K services$133.15/svc6.69x markup
45380Biopsy of large bowel using an endoscopeโš  5.7x markup
$381.2K
2.1K services$182.04/svc5.72x markup
99212Established patient office or other outpatient visit, typically 10 minutes
$241.0K
6.0K services$39.92/svc1.87x markup
96372Injection beneath the skin or into muscle for therapy, diagnosis, or prevention
$230.8K
14.1K services$16.34/svc2.48x markup
96360Hydration infusion into a vein 31 minutes to 1 hour
$187.5K
4.6K services$40.74/svc2.58x markup
99204New patient office or other outpatient visit, typically 45 minutes
$180.2K
1.3K services$139.18/svc1.88x markup
99232Subsequent hospital inpatient care, typically 25 minutes per day
$98.7K
1.7K services$59.78/svc2.34x markup
99497Advance care planning by the physician or other qualified health care professional
$96.7K
1.3K services$76.58/svc1.99x markup
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
$92.5K
693 services$133.47/svc1.60x markup
G0438Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit
$81.5K
447 services$182.42/svc1.61x markup
45385Removal of polyps or growths of large bowel using an endoscopeโš  4.3x markup
$72.1K
270 services$267.04/svc4.32x markup
99223Initial hospital inpatient care, typically 70 minutes per day
$68.6K
415 services$165.39/svc1.95x markup
99203New patient office or other outpatient visit, typically 30 minutes
$67.1K
754 services$89.00/svc1.69x markup
94010Measurement and graphic recording of total and timed exhaled air capacity
$55.9K
1.9K services$29.27/svc2.15x markup
96361Hydration infusion into a vein
$51.6K
4.1K services$12.65/svc2.48x markup
G0008Administration of influenza virus vaccine
$43.9K
1.8K services$24.72/svc1.58x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99213Established patient office or other outpatient visit, typically 15 minutes22.4K$1.5M$66.201.89x
76700Ultrasound of abdomen9.6K$1.0M$108.661.99x
76536Ultrasound of head and neck9.2K$962.2K$104.842.01x
76770Ultrasound behind abdominal cavity9.3K$807.7K$87.152.37x
43239Biopsy of the esophagus, stomach, and/or upper small bowel using an endoscope4.5K$600.2K$133.156.69x
45380Biopsy of large bowel using an endoscope2.1K$381.2K$182.045.72x
99212Established patient office or other outpatient visit, typically 10 minutes6.0K$241.0K$39.921.87x
96372Injection beneath the skin or into muscle for therapy, diagnosis, or prevention14.1K$230.8K$16.342.48x
96360Hydration infusion into a vein 31 minutes to 1 hour4.6K$187.5K$40.742.58x
99204New patient office or other outpatient visit, typically 45 minutes1.3K$180.2K$139.181.88x
99232Subsequent hospital inpatient care, typically 25 minutes per day1.7K$98.7K$59.782.34x
99497Advance care planning by the physician or other qualified health care professional1.3K$96.7K$76.581.99x
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit693$92.5K$133.471.60x
G0438Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit447$81.5K$182.421.61x
45385Removal of polyps or growths of large bowel using an endoscope270$72.1K$267.044.32x
99223Initial hospital inpatient care, typically 70 minutes per day415$68.6K$165.391.95x
99203New patient office or other outpatient visit, typically 30 minutes754$67.1K$89.001.69x
94010Measurement and graphic recording of total and timed exhaled air capacity1.9K$55.9K$29.272.15x
96361Hydration infusion into a vein4.1K$51.6K$12.652.48x
G0008Administration of influenza virus vaccine1.8K$43.9K$24.721.58x

Markup Analysis

Charge-to-Payment Ratio

2.77x

This provider submits charges 2.77 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.77x means for every $100 Medicare pays, this provider initially charges $277. This is higher than the national average.

Location

Los Angeles, CA

Provider Verification

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

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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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