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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. Roman Kleynberg
๐ŸŽ—๏ธ
MDIndividual

Roman Kleynberg, M.D.

NPI: 1700103298
Los Angeles, CA
8 years of data
Hematology-Oncology
$7.6M
Total Payments
30.1K
Beneficiaries
92.5K
Services
2.25x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$7.6M
Specialty median$339.6K

๐Ÿ“‹ Key Findings

1Billed $7.6M over 8 years
22.25x markup ratio (above median)
398th percentile in Hematology-Oncology by payments
4Payments surged 835% in 2017
51 procedure with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $7.6M in total Medicare payments ranks in the 98th percentile of Hematology-Oncology providers nationally.

Medicare payments to this provider grew 1075% from 2016 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 835% in 2017

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
2016$195.66$106.951.83x$88.71$90.4K1.2K341
2017$195.69$105.221.86x$90.47$845.6K9.8K2.7K
2018$172.59$94.311.83x$78.28$1.1M13.5K4.1K
2019$170.55$92.541.84x$78.01$1.0M12.6K4.4K
2020$220.76$99.392.22x$121.37$1.2M13.6K4.7K
2021$230.63$94.572.44x$136.06$1.1M14.1K4.5K
2022$230.99$92.322.50x$138.67$1.2M14.7K4.8K
2023$224.29$85.682.62x$138.61$1.1M12.8K4.7K

Top Procedures (7)

99232Subsequent hospital inpatient care, typically 25 minutes per day
$3.1M
50.1K services$62.82/svc2.32x markup
99233Subsequent hospital inpatient care, typically 35 minutes per day
$2.4M
26.7K services$89.97/svc2.26x markup
99223Initial hospital inpatient care, typically 70 minutes per day
$1.2M
7.1K services$169.23/svc2.33x markup
99222Initial hospital inpatient care, typically 50 minutes per day
$764.6K
6.6K services$115.70/svc1.84x markup
99231Subsequent hospital inpatient care, typically 15 minutes per day
$65.2K
2.0K services$33.10/svc1.90x markup
99221Initial hospital inpatient care, typically 30 minutes per day
$1.3K
15 services$85.41/svc1.83x markup
G2010Remote evaluation of recorded video and/or images submitted by an established patient (e.g., store and forward), including interpretation with follow-up with the patient within 24 business hours, not originating from a related e/m service provided within tโš  3.9x markup
$469.70
61 services$7.70/svc3.90x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99232Subsequent hospital inpatient care, typically 25 minutes per day50.1K$3.1M$62.822.32x
99233Subsequent hospital inpatient care, typically 35 minutes per day26.7K$2.4M$89.972.26x
99223Initial hospital inpatient care, typically 70 minutes per day7.1K$1.2M$169.232.33x
99222Initial hospital inpatient care, typically 50 minutes per day6.6K$764.6K$115.701.84x
99231Subsequent hospital inpatient care, typically 15 minutes per day2.0K$65.2K$33.101.90x
99221Initial hospital inpatient care, typically 30 minutes per day15$1.3K$85.411.83x
G2010Remote evaluation of recorded video and/or images submitted by an established patient (e.g., store and forward), including interpretation with follow-up with the patient within 24 business hours, not originating from a related e/m service provided within t61$469.70$7.703.90x

Markup Analysis

Charge-to-Payment Ratio

2.25x

This provider submits charges 2.25 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.25x means for every $100 Medicare pays, this provider initially charges $225. 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 Hematology-Oncology providers in CA for peer comparison.

Roman Kleynberg (you)
$7.6M
Luke Dreisbach, M.D.
$77.2M
Sachin Gupta, M.D.
$55.1M
Ravi Rao, MDโš ๏ธ
$49.1M
Michael Sherman, M.D., PHD
$38.9M
Nerses Tchekmedyian, M.D.
$38.0M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Luke Dreisbach, M.D.Rancho Mirage, CA$77.2Mโœ“ Clear
Sachin Gupta, M.D.Fresno, CA$55.1Mโœ“ Clear
Ravi Rao, MDFresno, CA$49.1Mโš ๏ธ Flagged
Michael Sherman, M.D., PHDWalnut Creek, CA$38.9Mโœ“ Clear
Nerses Tchekmedyian, M.D.Irvine, CA$38.0Mโœ“ Clear

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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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