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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. David Chu
๐ŸŽ—๏ธ
MDIndividual

David Chu, M.D.

NPI: 1750585287
Port Jefferson Station, NY
10 years of data
Hematology-Oncology
$27.0M
Total Payments
782
Beneficiaries
2.7M
Services
4x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$27.0M
Specialty median$339.6K

๐Ÿ“‹ Key Findings

1Billed $27.0M over 10 years
24x markup ratio (above median)
3Risk score: 66 โ€” flagged for review
499th percentile in Hematology-Oncology by payments
51.1K services/day โ€” physically implausible
6Payments surged 58% in 2021

โš ๏ธ Flagged for Review

Risk Score: 66
  • 47x specialty median spending
  • Markup 8.8x (specialty median: 4.0x)
  • 61x specialty median beneficiaries
  • 304x specialty median services
View Deep Dives โ†’Report Fraud โ†’

Statistical flag only โ€” not an accusation of fraud

โš ๏ธ This provider averages 1.1K services per working day โ€” physically unusual for an individual practitioner

Based on 2.7M total services over 10 years (250 working days/year). Learn about impossible service volumes โ†’

๐Ÿ”Ž Data Analysis

This provider's $27.0M in total Medicare payments ranks in the 99th percentile of Hematology-Oncology providers nationally.

Averaging 1.1K services per working day raises questions about billing patterns.

Medicare payments to this provider grew 61% from 2014 to 2023.

This provider has been statistically flagged with a risk score of 66/100. Statistical flags are not accusations of fraud.

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 58% in 2021

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$26.65$9.612.77x$17.04$1.9M197.1K65
2015$27.22$10.822.52x$16.40$2.3M216.6K66
2016$23.57$9.002.62x$14.57$2.0M222.1K68
2017$27.22$10.742.53x$16.48$3.1M289.2K74
2018$51.49$12.094.26x$39.40$3.1M253.4K84
2019$42.85$9.254.63x$33.60$2.5M269.6K82
2020$49.81$9.845.06x$39.97$2.1M215.2K81
2021$47.86$9.165.22x$38.70$3.3M364.9K88
2022$46.02$9.274.96x$36.75$3.6M391.0K87
2023$51.98$11.994.34x$39.99$3.1M254.5K87

Top Procedures (20)

J9271Injection, pembrolizumab, 1 mg
$3.1M
73.2K services$41.76/svc2.31x markup
88185Flow cytometry technique for dna or cell analysis, each additional markerโš  4.2x markup
$2.5M
88.9K services$28.52/svc4.21x markup
99214Established patient office or other outpatient visit, 30-39 minutesโš  3.4x markup
$2.0M
19.7K services$100.83/svc3.40x markup
J0897Injection, denosumab, 1 mgโš  4.3x markup
$1.5M
105.4K services$14.62/svc4.29x markup
J9310Injection, rituximab, 100 mg
$1.2M
1.9K services$620.72/svc2.23x markup
78816Nuclear medicine study with CT imaging whole body
$1.1M
869 services$1.3K/svc2.24x markup
J2796Injection, romiplostim, 10 micrograms
$962.4K
15.9K services$60.34/svc2.78x markup
J2505Injection, pegfilgrastim, 6 mgโš  3.1x markup
$942.7K
308 services$3.1K/svc3.15x markup
J0885Injection, epoetin alfa, (for non-esrd use), 1000 unitsโš  3.0x markup
$881.3K
90.0K services$9.79/svc3.05x markup
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutesโš  3.5x markup
$727.3K
7.8K services$93.62/svc3.50x markup
99215Established patient office or other outpatient visit, 40-54 minutesโš  5.5x markup
$640.5K
4.4K services$146.10/svc5.49x markup
J1439Injection, ferric carboxymaltose, 1 mgโš  6.5x markup
$640.5K
744.8K services$0.86/svc6.50x markup
J9299Injection, nivolumab, 1 mg
$602.3K
28.6K services$21.03/svc2.57x markup
96413Administration of chemotherapy into vein, 1 hour or lessโš  3.9x markup
$583.2K
4.3K services$134.50/svc3.86x markup
J1568Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mgโš  3.2x markup
$582.9K
18.7K services$31.15/svc3.19x markup
99490Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month
$456.9K
10.4K services$43.83/svc2.83x markup
J0881Injection, darbepoetin alfa, 1 microgram (non-esrd use)โš  7.5x markup
$446.3K
166.5K services$2.68/svc7.45x markup
J1454Injection, fosnetupitant 235 mg and palonosetron 0.25 mgโš  4.7x markup
$383.5K
956 services$401.17/svc4.71x markup
99205New patient office or other outpatient visit, 60-74 minutesโš  3.3x markup
$316.7K
1.7K services$191.51/svc3.29x markup
82728Ferritin (blood protein) levelโš  8.5x markup
$302.9K
20.1K services$15.08/svc8.49x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
J9271Injection, pembrolizumab, 1 mg73.2K$3.1M$41.762.31x
88185Flow cytometry technique for dna or cell analysis, each additional marker88.9K$2.5M$28.524.21x
99214Established patient office or other outpatient visit, 30-39 minutes19.7K$2.0M$100.833.40x
J0897Injection, denosumab, 1 mg105.4K$1.5M$14.624.29x
J9310Injection, rituximab, 100 mg1.9K$1.2M$620.722.23x
78816Nuclear medicine study with CT imaging whole body869$1.1M$1.3K2.24x
J2796Injection, romiplostim, 10 micrograms15.9K$962.4K$60.342.78x
J2505Injection, pegfilgrastim, 6 mg308$942.7K$3.1K3.15x
J0885Injection, epoetin alfa, (for non-esrd use), 1000 units90.0K$881.3K$9.793.05x
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes7.8K$727.3K$93.623.50x
99215Established patient office or other outpatient visit, 40-54 minutes4.4K$640.5K$146.105.49x
J1439Injection, ferric carboxymaltose, 1 mg744.8K$640.5K$0.866.50x
J9299Injection, nivolumab, 1 mg28.6K$602.3K$21.032.57x
96413Administration of chemotherapy into vein, 1 hour or less4.3K$583.2K$134.503.86x
J1568Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg18.7K$582.9K$31.153.19x
99490Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month10.4K$456.9K$43.832.83x
J0881Injection, darbepoetin alfa, 1 microgram (non-esrd use)166.5K$446.3K$2.687.45x
J1454Injection, fosnetupitant 235 mg and palonosetron 0.25 mg956$383.5K$401.174.71x
99205New patient office or other outpatient visit, 60-74 minutes1.7K$316.7K$191.513.29x
82728Ferritin (blood protein) level20.1K$302.9K$15.088.49x

Markup Analysis

Charge-to-Payment Ratio

4x

This provider submits charges 4 times higher than what Medicare actually pays.

What This Means

A markup ratio of 4x means for every $100 Medicare pays, this provider initially charges $400. This is higher than the national average.

Location

Port Jefferson Station, NY

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.

Believe this data is inaccurate? Dispute this data