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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. Kanagaratnam Sivalingam
๐Ÿฉบ
MDIndividual

Kanagaratnam Sivalingam, M.D.

NPI: 1578578365
Lancaster, CA
10 years of data
Internal Medicine
$4.2M
Total Payments
25.5K
Beneficiaries
53.1K
Services
2.23x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$4.2M
Specialty median$84.0K

๐Ÿ“‹ Key Findings

1Billed $4.2M over 10 years
22.23x markup ratio (above median)
399th percentile in Internal Medicine by payments
4Payments surged 138% in 2016
51 procedure with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $4.2M in total Medicare payments ranks in the 99th percentile of Internal Medicine providers nationally.

Medicare payments to this provider grew 551% 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 138% in 2016

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$203.24$85.942.36x$117.30$151.6K1.8K1.1K
2015$252.08$103.912.43x$148.17$76.3K800578
2016$219.83$84.362.61x$135.47$181.9K2.1K1.0K
2017$185.00$74.702.48x$110.30$168.0K2.2K1.2K
2018$153.72$63.652.42x$90.07$286.4K3.8K2.0K
2019$167.98$73.542.28x$94.44$376.7K4.7K2.6K
2020$190.23$88.242.16x$101.99$446.2K5.4K3.0K
2021$213.58$94.872.25x$118.71$602.0K7.0K3.8K
2022$175.83$79.112.22x$96.72$887.5K11.9K4.9K
2023$182.23$76.762.37x$105.47$987.4K13.4K5.3K

Top Procedures (20)

99214Established patient office or other outpatient, visit typically 25 minutes
$1.7M
18.4K services$93.63/svc2.14x markup
99443Physician telephone patient service, 21-30 minutes of medical discussion
$442.6K
4.4K services$100.40/svc1.99x markup
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
$358.6K
2.7K services$134.57/svc2.17x markup
G0438Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit
$209.6K
1.1K services$182.77/svc2.18x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$193.0K
3.0K services$63.48/svc2.36x markup
99457Remote physiologic monitoring treatment management services, health care professional time in a calendar month requiring interactive communication with the patient/caregiver; first 20 minutes
$192.2K
4.6K services$41.93/svc2.39x markup
99454Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days
$141.2K
2.8K services$49.96/svc3.00x markup
99204New patient office or other outpatient visit, typically 45 minutes
$115.2K
954 services$120.71/svc1.66x markup
99458Remote physiologic monitoring treatment management services, health care professional time in a calendar month requiring interactive communication with the patient/caregiver; each additional 20 minute
$112.2K
3.3K services$33.99/svc2.65x markup
99215Established patient office or other outpatient, visit typically 40 minutes
$72.8K
529 services$137.69/svc1.82x markup
99490Chronic care management services at least 20 minutes per calendar month
$72.3K
2.0K services$35.37/svc2.83x markup
99205New patient office or other outpatient visit, typically 60 minutes
$66.6K
392 services$169.79/svc2.06x markup
99487Complex chronic care management services 60 minutes clinical staff time
$57.9K
809 services$71.51/svc2.10x markup
99442Physician telephone patient service, 11-20 minutes of medical discussion
$49.8K
688 services$72.32/svc1.94x markup
95816Measurement and recording of brain wave (eeg) activity, awake and drowsy
$42.3K
119 services$355.72/svc2.53x markup
95957Digital analysis of electrical brain wave activity (eeg)
$28.5K
119 services$239.69/svc2.50x markup
G0402Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
$25.6K
142 services$180.33/svc1.84x markup
95923Testing of autonomic (sympathetic) nervous system function
$24.7K
217 services$113.92/svc2.63x markup
99497Advance care planning by the physician or other qualified health care professional
$21.6K
302 services$71.45/svc2.80x markup
93000Routine EKG using at least 12 leads including interpretation and reportโš  5.7x markup
$20.7K
1.6K services$13.16/svc5.70x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99214Established patient office or other outpatient, visit typically 25 minutes18.4K$1.7M$93.632.14x
99443Physician telephone patient service, 21-30 minutes of medical discussion4.4K$442.6K$100.401.99x
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit2.7K$358.6K$134.572.17x
G0438Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit1.1K$209.6K$182.772.18x
99213Established patient office or other outpatient visit, typically 15 minutes3.0K$193.0K$63.482.36x
99457Remote physiologic monitoring treatment management services, health care professional time in a calendar month requiring interactive communication with the patient/caregiver; first 20 minutes4.6K$192.2K$41.932.39x
99454Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days2.8K$141.2K$49.963.00x
99204New patient office or other outpatient visit, typically 45 minutes954$115.2K$120.711.66x
99458Remote physiologic monitoring treatment management services, health care professional time in a calendar month requiring interactive communication with the patient/caregiver; each additional 20 minute3.3K$112.2K$33.992.65x
99215Established patient office or other outpatient, visit typically 40 minutes529$72.8K$137.691.82x
99490Chronic care management services at least 20 minutes per calendar month2.0K$72.3K$35.372.83x
99205New patient office or other outpatient visit, typically 60 minutes392$66.6K$169.792.06x
99487Complex chronic care management services 60 minutes clinical staff time809$57.9K$71.512.10x
99442Physician telephone patient service, 11-20 minutes of medical discussion688$49.8K$72.321.94x
95816Measurement and recording of brain wave (eeg) activity, awake and drowsy119$42.3K$355.722.53x
95957Digital analysis of electrical brain wave activity (eeg)119$28.5K$239.692.50x
G0402Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment142$25.6K$180.331.84x
95923Testing of autonomic (sympathetic) nervous system function217$24.7K$113.922.63x
99497Advance care planning by the physician or other qualified health care professional302$21.6K$71.452.80x
93000Routine EKG using at least 12 leads including interpretation and report1.6K$20.7K$13.165.70x

Markup Analysis

Charge-to-Payment Ratio

2.23x

This provider submits charges 2.23 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.23x means for every $100 Medicare pays, this provider initially charges $223. This is higher than the national average.

Location

Lancaster, 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 Internal Medicine providers in CA for peer comparison.

Kanagaratnam Sivalingam (you)
$4.2M
Aaron Jeng, MD, MPH
$45.6M
Richard Park, M.D.โš ๏ธ
$34.7M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Aaron Jeng, MD, MPHSan Gabriel, CA$45.6Mโœ“ Clear
Richard Park, M.D.Granada Hills, CA$34.7Mโš ๏ธ Flagged

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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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