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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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Methodology•Download Data
  1. Home
  2. Providers
  3. Christopher Chu
❤️
MDIndividual

Christopher Chu, MD

NPI: 1326205873
Los Angeles, CA
10 years of data
Cardiology
$6.2M
Total Payments
40.6K
Beneficiaries
86.6K
Services
3.63x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$6.2M
Specialty median$193.1K

📋 Key Findings

1Billed $6.2M over 10 years
23.63x markup ratio (above median)
398th percentile in Cardiology by payments
4Payments surged 94% in 2018
515 procedures with >3x markup
✓ No flags detected

🔎 Data Analysis

This provider's $6.2M in total Medicare payments ranks in the 98th percentile of Cardiology providers nationally.

Medicare payments to this provider grew 414% 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

📈

Notable: Payments increased 94% in 2018

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 — the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$152.73$53.862.84x$98.87$162.1K3.0K1.7K
2015$181.54$71.452.54x$110.09$199.6K3.1K1.8K
2016$186.60$67.572.76x$119.03$348.6K5.2K2.2K
2017$173.00$62.842.75x$110.16$320.1K5.6K2.6K
2018$273.95$77.933.52x$196.02$621.5K9.2K3.8K
2019$302.31$88.893.40x$213.42$809.8K10.3K5.3K
2020$321.12$77.304.15x$243.82$1.1M14.8K5.9K
2021$318.87$75.424.23x$243.45$974.2K14.5K5.9K
2022$543.26$140.453.87x$402.81$853.8K11.5K6.0K
2023$779.76$237.403.28x$542.36$832.6K9.5K5.3K

Top Procedures (20)

99232Subsequent hospital inpatient care, typically 25 minutes per day⚠ 3.3x markup
$2.7M
43.7K services$62.36/svc3.32x markup
99222Initial hospital inpatient care, typically 50 minutes per day⚠ 3.5x markup
$858.6K
7.7K services$111.81/svc3.50x markup
93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve function⚠ 6.4x markup
$505.8K
7.2K services$70.68/svc6.38x markup
99223Initial hospital inpatient care, typically 70 minutes per day⚠ 3.2x markup
$413.2K
2.4K services$169.21/svc3.24x markup
99233Subsequent hospital inpatient care, typically 35 minutes per day⚠ 3.1x markup
$394.2K
4.4K services$89.09/svc3.13x markup
99214Established patient office or other outpatient, visit typically 25 minutes⚠ 3.6x markup
$373.8K
4.2K services$88.31/svc3.64x markup
99356Prolonged inpatient or observation hospital service first hour⚠ 3.5x markup
$258.3K
3.3K services$78.89/svc3.55x markup
99309Subsequent nursing facility visit, typically 25 minutes per day
$111.1K
1.5K services$74.49/svc2.88x markup
78492Nuclear medicine studies of blood flow in heart muscle at rest and with stress
$97.0K
71 services$1.4K/svc2.49x markup
78431Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan
$84.4K
53 services$1.6K/svc1.26x markup
99204New patient office or other outpatient visit, typically 45 minutes⚠ 3.8x markup
$77.9K
673 services$115.70/svc3.80x markup
A9555Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries⚠ 6.0x markup
$52.4K
126 services$415.76/svc6.01x markup
93010Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report⚠ 4.8x markup
$45.7K
6.5K services$7.08/svc4.78x markup
93351Ultrasound examination and continuous monitoring of the heart performed during rest, exercise, and/or drug-induced stress with interpretation and report⚠ 3.7x markup
$27.2K
135 services$201.35/svc3.74x markup
99308Subsequent nursing facility visit, typically 15 minutes per day⚠ 3.6x markup
$21.9K
356 services$61.53/svc3.56x markup
99215Established patient office or other outpatient, visit typically 40 minutes
$17.9K
153 services$117.14/svc2.97x markup
93000Routine EKG using at least 12 leads including interpretation and report⚠ 5.7x markup
$17.7K
1.4K services$12.74/svc5.66x markup
93016Exercise or drug-induced heart and blood vessel stress test with EKG monitoring and physician supervision
$10.7K
581 services$18.38/svc2.75x markup
99205New patient office or other outpatient visit, typically 60 minutes⚠ 3.5x markup
$10.2K
74 services$138.48/svc3.52x markup
93224Heart rhythm tracing, analysis, and interpretation of 48-hour EKG⚠ 4.5x markup
$8.3K
127 services$65.43/svc4.45x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99232Subsequent hospital inpatient care, typically 25 minutes per day43.7K$2.7M$62.363.32x
99222Initial hospital inpatient care, typically 50 minutes per day7.7K$858.6K$111.813.50x
93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve function7.2K$505.8K$70.686.38x
99223Initial hospital inpatient care, typically 70 minutes per day2.4K$413.2K$169.213.24x
99233Subsequent hospital inpatient care, typically 35 minutes per day4.4K$394.2K$89.093.13x
99214Established patient office or other outpatient, visit typically 25 minutes4.2K$373.8K$88.313.64x
99356Prolonged inpatient or observation hospital service first hour3.3K$258.3K$78.893.55x
99309Subsequent nursing facility visit, typically 25 minutes per day1.5K$111.1K$74.492.88x
78492Nuclear medicine studies of blood flow in heart muscle at rest and with stress71$97.0K$1.4K2.49x
78431Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan53$84.4K$1.6K1.26x
99204New patient office or other outpatient visit, typically 45 minutes673$77.9K$115.703.80x
A9555Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries126$52.4K$415.766.01x
93010Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report6.5K$45.7K$7.084.78x
93351Ultrasound examination and continuous monitoring of the heart performed during rest, exercise, and/or drug-induced stress with interpretation and report135$27.2K$201.353.74x
99308Subsequent nursing facility visit, typically 15 minutes per day356$21.9K$61.533.56x
99215Established patient office or other outpatient, visit typically 40 minutes153$17.9K$117.142.97x
93000Routine EKG using at least 12 leads including interpretation and report1.4K$17.7K$12.745.66x
93016Exercise or drug-induced heart and blood vessel stress test with EKG monitoring and physician supervision581$10.7K$18.382.75x
99205New patient office or other outpatient visit, typically 60 minutes74$10.2K$138.483.52x
93224Heart rhythm tracing, analysis, and interpretation of 48-hour EKG127$8.3K$65.434.45x

Markup Analysis

Charge-to-Payment Ratio

3.63x

This provider submits charges 3.63 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.63x means for every $100 Medicare pays, this provider initially charges $363. 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.

Similar Providers

Other Cardiology providers in CA for peer comparison.

Christopher Chu (you)
$6.2M
Leo Polosajian, M.D.
$52.5M
Athar Ansari, M.D.
$38.2M
Hanumandla Reddy, M.D
$38.1M
Mehran Khorsandi, M.D.,
$36.4M
Shashi Sharma, D.M.
$35.4M
Show detailed table ▾
ProviderLocationTotal PaymentsStatus
Leo Polosajian, M.D.Reseda, CA$52.5M✓ Clear
Athar Ansari, M.D.El Centro, CA$38.2M✓ Clear
Hanumandla Reddy, M.DHanford, CA$38.1M✓ Clear
Mehran Khorsandi, M.D.,Los Angeles, CA$36.4M✓ Clear
Shashi Sharma, D.M.Visalia, CA$35.4M✓ Clear

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Data Sources

  • • Centers for Medicare & Medicaid Services (CMS)
  • • Medicare Provider Utilization and Payment Data (2014-2023)
  • • 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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