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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. Chee Woo
๐Ÿ’‰
MDIndividual

Chee Woo, MD

NPI: 1992703805
Wilmington, DE
10 years of data
Anesthesiology
$5.5M
Total Payments
38.7K
Beneficiaries
87.4K
Services
4.85x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$5.5M
Specialty median$26.7K

๐Ÿ“‹ Key Findings

1Billed $5.5M over 10 years
24.85x markup ratio (above median)
399th percentile in Anesthesiology by payments
4Payments surged 445% in 2015
519 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $5.5M in total Medicare payments ranks in the 99th percentile of Anesthesiology providers nationally.

Medicare payments to this provider grew 1189% 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 445% 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$403.15$67.006.02x$336.15$69.0K1.1K767
2015$698.72$95.027.35x$603.70$375.9K4.7K2.3K
2016$960.17$93.3910.28x$866.78$385.5K4.6K2.1K
2017$1.1K$95.9911.14x$973.57$364.5K5.1K2.3K
2018$927.23$102.239.07x$825.00$478.3K11.0K4.3K
2019$905.60$101.558.92x$804.05$668.4K13.1K5.0K
2020$867.66$96.788.97x$770.88$702.7K10.9K5.2K
2021$757.87$97.897.74x$659.98$720.7K10.1K4.7K
2022$786.10$102.017.71x$684.09$825.5K11.6K5.2K
2023$718.87$88.828.09x$630.05$889.0K15.3K6.8K

Top Procedures (20)

99214Established patient office or other outpatient, visit typically 25 minutes
$1.4M
15.6K services$90.13/svc2.97x markup
G0483Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/msโš  3.0x markup
$870.5K
3.6K services$242.22/svc3.05x markup
99213Established patient office or other outpatient visit, typically 15 minutesโš  3.1x markup
$749.4K
12.4K services$60.32/svc3.06x markup
80307Testing for presence of drugโš  3.4x markup
$336.8K
5.4K services$62.38/svc3.37x markup
96138Psychological or neuropsychological test administration and scoring by technician, first 30 minutesโš  4.3x markup
$324.4K
11.5K services$28.25/svc4.25x markup
G0482Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/msโš  3.0x markup
$249.6K
1.3K services$195.79/svc3.04x markup
64493Injections of lower or sacral spine facet joint using imaging guidanceโš  14.1x markup
$136.7K
967 services$141.40/svc14.11x markup
27096Injection procedure into sacroiliac joint for anesthetic or steroidโš  10.1x markup
$129.1K
873 services$147.88/svc10.12x markup
G0481Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/msโš  3.4x markup
$118.0K
760 services$155.26/svc3.35x markup
62323Injection of substance into spinal canal of lower back or sacrum using imaging guidanceโš  10.7x markup
$111.7K
541 services$206.40/svc10.68x markup
64483Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidanceโš  12.1x markup
$89.2K
471 services$189.33/svc12.14x markup
64635Destruction of lower or sacral spinal facet joint nerves using imaging guidanceโš  9.4x markup
$76.5K
231 services$331.19/svc9.41x markup
99204New patient office or other outpatient visit, typically 45 minutesโš  3.4x markup
$75.5K
596 services$126.69/svc3.37x markup
64494Injections of lower or sacral spine facet joint using imaging guidanceโš  14.3x markup
$70.0K
964 services$72.66/svc14.32x markup
64495Injections of lower or sacral spine facet joint using imaging guidanceโš  13.5x markup
$59.3K
827 services$71.65/svc13.49x markup
92548Computerized dynamic assessment of balance and postural instabilityโš  7.8x markup
$43.1K
1.1K services$38.23/svc7.85x markup
77002Fluoroscopic guidance for insertion of needleโš  4.7x markup
$43.1K
658 services$65.49/svc4.68x markup
64490Injections of upper or middle spine facet joint using imaging guidanceโš  14.0x markup
$42.5K
276 services$153.87/svc13.97x markup
96372Injection beneath the skin or into muscle for therapy, diagnosis, or preventionโš  7.6x markup
$36.7K
2.7K services$13.69/svc7.59x markup
64484Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidanceโš  14.6x markup
$35.4K
448 services$79.02/svc14.57x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99214Established patient office or other outpatient, visit typically 25 minutes15.6K$1.4M$90.132.97x
G0483Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms3.6K$870.5K$242.223.05x
99213Established patient office or other outpatient visit, typically 15 minutes12.4K$749.4K$60.323.06x
80307Testing for presence of drug5.4K$336.8K$62.383.37x
96138Psychological or neuropsychological test administration and scoring by technician, first 30 minutes11.5K$324.4K$28.254.25x
G0482Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms1.3K$249.6K$195.793.04x
64493Injections of lower or sacral spine facet joint using imaging guidance967$136.7K$141.4014.11x
27096Injection procedure into sacroiliac joint for anesthetic or steroid873$129.1K$147.8810.12x
G0481Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms760$118.0K$155.263.35x
62323Injection of substance into spinal canal of lower back or sacrum using imaging guidance541$111.7K$206.4010.68x
64483Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidance471$89.2K$189.3312.14x
64635Destruction of lower or sacral spinal facet joint nerves using imaging guidance231$76.5K$331.199.41x
99204New patient office or other outpatient visit, typically 45 minutes596$75.5K$126.693.37x
64494Injections of lower or sacral spine facet joint using imaging guidance964$70.0K$72.6614.32x
64495Injections of lower or sacral spine facet joint using imaging guidance827$59.3K$71.6513.49x
92548Computerized dynamic assessment of balance and postural instability1.1K$43.1K$38.237.85x
77002Fluoroscopic guidance for insertion of needle658$43.1K$65.494.68x
64490Injections of upper or middle spine facet joint using imaging guidance276$42.5K$153.8713.97x
96372Injection beneath the skin or into muscle for therapy, diagnosis, or prevention2.7K$36.7K$13.697.59x
64484Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidance448$35.4K$79.0214.57x

Markup Analysis

Charge-to-Payment Ratio

4.85x

This provider submits charges 4.85 times higher than what Medicare actually pays.

What This Means

A markup ratio of 4.85x means for every $100 Medicare pays, this provider initially charges $485. This is higher than the national average.

Location

Wilmington, DE

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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