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PROVIDER PROFILE · NPI 1043521313

Ewan JohnsonMD, PHD

PRACTICETOMBALL REGIONAL INTERNAL MEDICINE ASSOCIATESSee all providers at this practice →
Internal MedicineTomball, TXI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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PRESCRIBING · PART D · 2024
Total Rx claims
126
Beneficiaries
—
Total drug cost
$901
Distinct drugs
7
Brand share
32.5%
Top prescribed drugs
Amoxicillin/Potassium Clav25 claims
Cefdinir22 claims
Meloxicam21 claims
Dexamethasone16 claims
Nitrofurantoin Monohyd/M-Cryst16 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (3)

CCN 030154
Hospital
CCN 450370
Hospital
CCN 451377
Hospital
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
215
Unique beneficiaries
—
Total services
218
Distinct HCPCS
4
Medicare payment
$19K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 6,183 Internal Medicine providers in TX — bottom quintile (cohort median 673).
REFERRAL NETWORK

Where Ewan Johnson'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). 37 inbound referrers · 113 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
TOMBALL TEXAS HOSPITAL COMPANY LLC146508
CHCA BAYSHORE LP5794
Margaret Lang-Williams
Hospitalist · Houston, TX
56207
NORTHWEST TEXAS HEALTHCARE SYSTEM INC45140
NORTHWEST COMMUNITY HEALTH, INC44123
Quest Diagnostics Clinical Laboratories Inc
Clinical Laboratory · Houston, TX
3591
Jose Spencer
Diagnostic Radiology · Katy, TX
35104
Larry Grissom
Diagnostic Radiology · Houston, TX
3066
Madelyn Vuong
Diagnostic Radiology · Houston, TX
2558
Mustansir Vejlani
Pulmonary Disease · Tomball, TX
2463
Christopher Vu
Emergency Medicine · Tomball, TX
2467
Adrian Santamaria
Neurology · Tomball, TX
2498
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
TOMBALL TEXAS HOSPITAL COMPANY LLC165638
Laboratory Corporation Of America
Clinical Laboratory · Houston, TX
149292
CHCA BAYSHORE LP148292
COE, WILLIAM64246
Margaret Lang-Williams
Hospitalist · Houston, TX
64238
S Janel Beatie
Internal Medicine · Tomball, TX
62207
NORTHWEST TEXAS HEALTHCARE SYSTEM INC56200
Tariq Hashmy
Diagnostic Radiology · Houston, TX
53223
Voon Liaw
Interventional Radiology · Houston, TX
48140
Sandro Sinatora
Internal Medicine · Tomball, TX
47147
NORTHWEST COMMUNITY HEALTH, INC47202
Waqar Khan
Cardiology · Tomball, TX
47265
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.