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 ยท OpenFeds ยท OpenSpending

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

Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Matthew Lockwood
๐ŸŽ—๏ธ
MDIndividual

Matthew Lockwood, MD

NPI: 1265875470
Fayetteville, AR
5 years of data
Hematology-Oncology
$13.7M
Total Payments
326
Beneficiaries
1.1M
Services
3.23x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$13.7M
Specialty median$339.6K

๐Ÿ“‹ Key Findings

1Billed $13.7M over 5 years
23.23x markup ratio (above median)
3Risk score: 68 โ€” flagged for review
499th percentile in Hematology-Oncology by payments
5847 services/day โ€” physically implausible
6Payments surged 422% in 2020

โš ๏ธ Flagged for Review

Risk Score: 68
  • 65x specialty median spending
  • Markup 11.4x (specialty median: 4.0x)
  • 32x specialty median beneficiaries
  • 346x specialty median services
View Deep Dives โ†’Report Fraud โ†’

Statistical flag only โ€” not an accusation of fraud

โš ๏ธ This provider averages 847 services per working day โ€” physically unusual for an individual practitioner

Based on 1.1M total services over 5 years (250 working days/year). Learn about impossible service volumes โ†’

๐Ÿ”Ž Data Analysis

This provider's $13.7M in total Medicare payments ranks in the 99th percentile of Hematology-Oncology providers nationally.

Averaging 847 services per working day raises questions about billing patterns.

Medicare payments to this provider grew 605% from 2019 to 2023.

This provider has been statistically flagged with a risk score of 68/100. 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 422% in 2020

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
2019$39.31$12.083.25x$27.23$596.7K49.4K44
2020$42.86$13.713.13x$29.15$3.1M226.9K68
2021$37.66$11.913.16x$25.75$2.7M230.5K65
2022$38.57$11.753.28x$26.82$3.1M263.1K73
2023$48.33$14.543.32x$33.79$4.2M289.0K76

Top Procedures (20)

J9271Injection, pembrolizumab, 1 mgโš  3.4x markup
$2.7M
66.2K services$41.11/svc3.41x markup
J9299Injection, nivolumab, 1 mgโš  3.5x markup
$1.6M
67.8K services$23.00/svc3.48x markup
J1561Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg
$989.3K
28.0K services$35.29/svc2.41x markup
J9144Injection, daratumumab, 10 mg and hyaluronidase-fihj
$939.4K
26.1K services$35.99/svc2.36x markup
78815Nuclear medicine study from skull base to mid-thigh with ct scanโš  3.0x markup
$738.6K
742 services$995.42/svc3.01x markup
J9041Injection, bortezomib, 0.1 mgโš  3.4x markup
$548.6K
19.6K services$27.99/svc3.39x markup
J0897Injection, denosumab, 1 mg
$524.5K
31.6K services$16.62/svc2.41x markup
Q5115Injection, rituximab-abbs, biosimilar, (truxima), 10 mgโš  3.8x markup
$476.2K
10.7K services$44.34/svc3.84x markup
A9607Lutetium lu 177 vipivotide tetraxetan, therapeutic, 1 millicurie
$460.2K
2.4K services$191.74/svc2.35x markup
J9312Injection, rituximab, 10 mg
$404.9K
5.5K services$73.09/svc2.60x markup
J0129Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)
$329.3K
7.7K services$42.91/svc2.56x markup
99214Established patient office or other outpatient visit, 30-39 minutes
$287.3K
3.3K services$86.25/svc2.32x markup
96413Administration of chemotherapy into vein, 1 hour or lessโš  3.1x markup
$271.6K
2.9K services$93.38/svc3.11x markup
J9022Injection, atezolizumab, 10 mg
$187.6K
3.1K services$60.13/svc2.53x markup
G9678Oncology care model (ocm) monthly enhanced oncology services (meos) payment for ocm enhanced services. g9678 payments may only be made to ocm practitioners for ocm beneficiaries for the furnishment of enhanced services as defined in the ocm participation a
$181.4K
1.1K services$159.72/svc1.00x markup
J2796Injection, romiplostim, 10 micrograms
$151.7K
2.4K services$63.51/svc2.20x markup
J9035Injection, bevacizumab, 10 mg
$144.9K
2.3K services$63.01/svc2.54x markup
Q5106Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 unitsโš  3.3x markup
$139.4K
20.8K services$6.70/svc3.28x markup
A9596Gallium ga-68 gozetotide, diagnostic, (illuccix), 1 millicurie
$139.2K
123 services$1.1K/svc2.43x markup
Q5107Injection, bevacizumab-awwb, biosimilar, (mvasi), 10 mg
$128.4K
3.1K services$41.03/svc2.44x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
J9271Injection, pembrolizumab, 1 mg66.2K$2.7M$41.113.41x
J9299Injection, nivolumab, 1 mg67.8K$1.6M$23.003.48x
J1561Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg28.0K$989.3K$35.292.41x
J9144Injection, daratumumab, 10 mg and hyaluronidase-fihj26.1K$939.4K$35.992.36x
78815Nuclear medicine study from skull base to mid-thigh with ct scan742$738.6K$995.423.01x
J9041Injection, bortezomib, 0.1 mg19.6K$548.6K$27.993.39x
J0897Injection, denosumab, 1 mg31.6K$524.5K$16.622.41x
Q5115Injection, rituximab-abbs, biosimilar, (truxima), 10 mg10.7K$476.2K$44.343.84x
A9607Lutetium lu 177 vipivotide tetraxetan, therapeutic, 1 millicurie2.4K$460.2K$191.742.35x
J9312Injection, rituximab, 10 mg5.5K$404.9K$73.092.60x
J0129Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)7.7K$329.3K$42.912.56x
99214Established patient office or other outpatient visit, 30-39 minutes3.3K$287.3K$86.252.32x
96413Administration of chemotherapy into vein, 1 hour or less2.9K$271.6K$93.383.11x
J9022Injection, atezolizumab, 10 mg3.1K$187.6K$60.132.53x
G9678Oncology care model (ocm) monthly enhanced oncology services (meos) payment for ocm enhanced services. g9678 payments may only be made to ocm practitioners for ocm beneficiaries for the furnishment of enhanced services as defined in the ocm participation a1.1K$181.4K$159.721.00x
J2796Injection, romiplostim, 10 micrograms2.4K$151.7K$63.512.20x
J9035Injection, bevacizumab, 10 mg2.3K$144.9K$63.012.54x
Q5106Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units20.8K$139.4K$6.703.28x
A9596Gallium ga-68 gozetotide, diagnostic, (illuccix), 1 millicurie123$139.2K$1.1K2.43x
Q5107Injection, bevacizumab-awwb, biosimilar, (mvasi), 10 mg3.1K$128.4K$41.032.44x

Markup Analysis

Charge-to-Payment Ratio

3.23x

This provider submits charges 3.23 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.23x means for every $100 Medicare pays, this provider initially charges $323. This is higher than the national average.

Location

Fayetteville, AR

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 AR for peer comparison.

Matthew Lockwood (you)
$13.7M
Kamal Patel, M.D.โš ๏ธ
$58.7M
Balagopalan Nair, M.D.โš ๏ธ
$54.5M
Eric Schaefer, M.D.
$35.5M
Thomas Sneed, M.D.
$34.7M
Lawrence Mendelsohn, MDโš ๏ธ
$34.6M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Kamal Patel, M.D.Little Rock, AR$58.7Mโš ๏ธ Flagged
Balagopalan Nair, M.D.Little Rock, AR$54.5Mโš ๏ธ Flagged
Eric Schaefer, M.D.Fayetteville, AR$35.5Mโœ“ Clear
Thomas Sneed, M.D.Little Rock, AR$34.7Mโœ“ Clear
Lawrence Mendelsohn, MDLittle Rock, AR$34.6Mโš ๏ธ Flagged

Related

Browse
โ† Back to Provider Directory
State
All providers in AR โ†’
Specialty
All Hematology-Oncology providers โ†’
Tool
Compare this provider โ†’
Analysis
Fraud Watchlist โ†’
Search
Search all providers โ†’

Share This Provider

Share this provider's Medicare payment information

Share:

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