OpenMedicare
Start Here
Explore
Fraud
Investigations
Data
Tools
About

Footer

OpenMedicare

Independent Medicare data journalism

Sister Sites

  • OpenMedicaid
  • OpenFeds
  • OpenSpending

Explore

  • Providers
  • Procedures
  • States
  • Specialties
  • Search

Fraud Analysis

  • Still Out There (AI)
  • Fraud Overview
  • Fraud Watchlist
  • Deep Dive Profiles
  • Impossible Numbers
  • Report Fraud

Investigations

  • The Algorithm Knows
  • How We Built the Model
  • Internal Medicine Crisis
  • Florida & California Fraud
  • Million Dollar Flagged
  • All Investigations

Tools

  • Provider Lookup
  • Compare
  • Cost Calculator
  • Your Medicare Dollar
  • Downloads

About

  • About OpenMedicare
  • Methodology
  • Glossary
  • Data Sources
  • API Docs
  • Updates
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.
Sister Sites: OpenMedicaid · OpenFeds · OpenSpending

© 2026 OpenMedicare. Independent data journalism. Built by TheDataProject.ai

Methodology•Download Data
  1. Home
  2. Providers
  3. Kevin Chen
⚕️
MDIndividual

Kevin Chen, MD

NPI: 1740291780
Marion, IL
10 years of data
Nephrology
$4.2M
Total Payments
23.6K
Beneficiaries
57.2K
Services
2.8x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$4.2M
Specialty median$185.2K

📋 Key Findings

1Billed $4.2M over 10 years
22.8x markup ratio (above median)
398th percentile in Nephrology by payments
47 procedures with >3x markup
✓ No flags detected

🔎 Data Analysis

This provider's $4.2M in total Medicare payments ranks in the 98th percentile of Nephrology providers nationally.

This provider's billing patterns fall within normal ranges for their specialty.

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

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$256.00$88.372.90x$167.63$367.6K4.3K2.0K
2015$288.46$98.912.92x$189.55$368.0K4.8K2.5K
2016$276.88$97.912.83x$178.97$489.5K7.6K3.2K
2017$309.31$99.533.11x$209.78$524.4K8.7K3.1K
2018$331.67$109.073.04x$222.60$544.3K8.0K2.9K
2019$339.44$107.663.15x$231.78$521.9K7.5K2.9K
2020$309.17$95.933.22x$213.24$332.3K4.4K1.8K
2021$316.45$119.022.66x$197.43$358.7K5.4K2.2K
2022$427.14$148.112.88x$279.03$347.9K4.3K1.9K
2023$413.24$135.113.06x$278.13$297.8K2.3K1.2K

Top Procedures (20)

90960Dialysis services (4 or more physician visits per month), patient 20 years of age and older⚠ 3.0x markup
$1.1M
4.8K services$223.91/svc3.04x markup
90966Home dialysis services per month, patient 20 years of age or older⚠ 3.6x markup
$785.7K
4.1K services$189.79/svc3.58x markup
99214Established patient office or other outpatient, visit typically 25 minutes
$581.5K
7.9K services$73.41/svc1.85x markup
99232Subsequent hospital inpatient care, typically 25 minutes per day
$454.0K
8.2K services$55.55/svc2.70x markup
99223Initial hospital inpatient care, typically 70 minutes per day
$397.9K
2.6K services$150.22/svc2.14x markup
99211Established patient office or other outpatient visit, typically 5 minutes
$308.4K
22.8K services$13.54/svc2.95x markup
99205New patient office or other outpatient visit, typically 60 minutes
$209.8K
1.4K services$145.16/svc2.93x markup
99233Subsequent hospital inpatient care, typically 35 minutes per day
$73.0K
911 services$80.12/svc2.25x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$55.0K
1.3K services$43.97/svc1.93x markup
99222Initial hospital inpatient care, typically 50 minutes per day
$43.5K
425 services$102.33/svc2.31x markup
99204New patient office or other outpatient visit, typically 45 minutes⚠ 3.1x markup
$38.0K
353 services$107.65/svc3.12x markup
90961Dialysis services (2-3 physician visits per month), patient 20 years of age and older⚠ 3.0x markup
$28.3K
148 services$191.43/svc3.03x markup
99212Established patient office or other outpatient visit, typically 10 minutes
$24.4K
649 services$37.61/svc1.74x markup
90989Dialysis training completed⚠ 3.5x markup
$19.2K
49 services$391.57/svc3.49x markup
90935Hemodialysis procedure with one physician evaluation⚠ 6.3x markup
$18.7K
332 services$56.20/svc6.32x markup
99441Physician telephone patient service, 5-10 minutes of medical discussion
$16.5K
541 services$30.49/svc1.81x markup
99215Established patient office or other outpatient, visit typically 40 minutes
$15.7K
151 services$103.67/svc1.74x markup
99231Subsequent hospital inpatient care, typically 15 minutes per day
$2.2K
71 services$30.38/svc2.47x markup
90962Dialysis services (1 physician visit per month), patient 20 years of age and older⚠ 4.5x markup
$1.5K
14 services$109.11/svc4.54x markup
90970Dialysis services, per day (less than full month service), patient 20 years of age or older
$1.5K
250 services$6.09/svc2.46x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
90960Dialysis services (4 or more physician visits per month), patient 20 years of age and older4.8K$1.1M$223.913.04x
90966Home dialysis services per month, patient 20 years of age or older4.1K$785.7K$189.793.58x
99214Established patient office or other outpatient, visit typically 25 minutes7.9K$581.5K$73.411.85x
99232Subsequent hospital inpatient care, typically 25 minutes per day8.2K$454.0K$55.552.70x
99223Initial hospital inpatient care, typically 70 minutes per day2.6K$397.9K$150.222.14x
99211Established patient office or other outpatient visit, typically 5 minutes22.8K$308.4K$13.542.95x
99205New patient office or other outpatient visit, typically 60 minutes1.4K$209.8K$145.162.93x
99233Subsequent hospital inpatient care, typically 35 minutes per day911$73.0K$80.122.25x
99213Established patient office or other outpatient visit, typically 15 minutes1.3K$55.0K$43.971.93x
99222Initial hospital inpatient care, typically 50 minutes per day425$43.5K$102.332.31x
99204New patient office or other outpatient visit, typically 45 minutes353$38.0K$107.653.12x
90961Dialysis services (2-3 physician visits per month), patient 20 years of age and older148$28.3K$191.433.03x
99212Established patient office or other outpatient visit, typically 10 minutes649$24.4K$37.611.74x
90989Dialysis training completed49$19.2K$391.573.49x
90935Hemodialysis procedure with one physician evaluation332$18.7K$56.206.32x
99441Physician telephone patient service, 5-10 minutes of medical discussion541$16.5K$30.491.81x
99215Established patient office or other outpatient, visit typically 40 minutes151$15.7K$103.671.74x
99231Subsequent hospital inpatient care, typically 15 minutes per day71$2.2K$30.382.47x
90962Dialysis services (1 physician visit per month), patient 20 years of age and older14$1.5K$109.114.54x
90970Dialysis services, per day (less than full month service), patient 20 years of age or older250$1.5K$6.092.46x

Markup Analysis

Charge-to-Payment Ratio

2.8x

This provider submits charges 2.8 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.8x means for every $100 Medicare pays, this provider initially charges $280. This is higher than the national average.

Location

Marion, IL

Provider Verification

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

Related

Browse
← Back to Provider Directory
State
All providers in IL →
Specialty
All Nephrology providers →
Tool
Compare this provider →
Analysis
Fraud Watchlist →
Search
Search all providers →

Share This Provider

Share this provider's Medicare payment information

Share:

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.

Believe this data is inaccurate? Dispute this data