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PROVIDER PROFILE · NPI 1831105550

John BarnwellM.D.

General SurgeryDetroit, MII
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$312
Payment records
5
By payment type
Food and Beverage$312
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
164
Unique beneficiaries
—
Total services
221
Distinct HCPCS
5
Medicare payment
$15K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 741 General Surgery providers in MI — top quintile (cohort median 205).
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where John Barnwell's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 45 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
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4190
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39169
Gary Galens
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3796
Glenn Webster
Diagnostic Radiology · Statesville, NC
3685
Hershel Jackson
Gastroenterology · Detroit, MI
3386
Ahmad Aburashed
Gastroenterology · Southfield, MI
3272
Joseph Koza
Diagnostic Radiology · Detroit, MI
3179
Refers patients to
Outbound — where patients go next
No outbound pairs above the suppression threshold.
Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.