caretrace.iopowered by▸healthparse
SearchCohort Builder
Tools▾
KOL FinderTerritoriesDrug Compare
AI Query
Browse▾
By stateBy specialty
Pricing
SearchCohort BuilderToolsKOL FinderTerritoriesDrug CompareAI QueryBrowseBy stateBy specialtyPricing
PROVIDER PROFILE · NPI 1265456206

William JohnstonMD

PRACTICERLGMDPA INCSee all providers at this practice →
Family PracticeVicksburg, MSI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (3)

CCN 251313
Hospital
CCN 251336
Hospital
CCN 25Z313
Nursing home
PRESCRIBING · PART D · 2024
Total Rx claims
463
Beneficiaries
—
Total drug cost
$3K
Distinct drugs
19
Brand share
22.7%
Top prescribed drugs
Prednisone86 claims
Pantoprazole Sodium33 claims
Nabumetone32 claims
Ondansetron30 claims
Amoxicillin/Potassium Clav29 claims
QUALITY · MIPS · 2024
Final MIPS score
99.2
Quality
90.0
Cost
87.2
Improvement activities
40.0
Promoting interop.
0.0
Payment adjustment
1.02%
Group
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where William Johnston'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). 5 inbound referrers · 8 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
VICKSBURG HEALTHCARE LLC63166
ST DOMINIC-JACKSON MEMORIAL HOSPITAL55122
Robert Giffin
Family Practice · Vicksburg, MS
26112
Murray Whitaker
Internal Medicine · Vicksburg, MS
25111
James Thomasson
Diagnostic Radiology · Jackson, MS
1630
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
ST DOMINIC-JACKSON MEMORIAL HOSPITAL117455
VICKSBURG HEALTHCARE LLC50123
Robert Giffin
Family Practice · Vicksburg, MS
25119
Murray Whitaker
Internal Medicine · Vicksburg, MS
2397
Paul Pierce
Cardiology · Vicksburg, MS
18101
Scott Mcpherson
Interventional Radiology · Jackson, MS
1636
Benton Parker
Diagnostic Radiology · Jackson, MS
1527
John Barnes
Family Practice · Vicksburg, MS
1325
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.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
385
Unique beneficiaries
—
Total services
402
Distinct HCPCS
4
Medicare payment
$40K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 642 Family Practice providers in MS — below median (cohort median 1,279).