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 1013120104

John Warren

PRACTICETUSKALOOSA INTERNAL MEDICINE LLCSee all providers at this practice →
Internal MedicineTuscaloosa, ALI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
No data available for this provider in 2024.
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (8)

CCN 017009
Home health agency
CCN 017080
Home health agency
CCN 017300
Home health agency
CCN 011506
Hospice
CCN 011517
Hospice
CCN 010045
Hospital
CCN 010092
Hospital
CCN 015186
Nursing home
PRESCRIBING · PART D · 2024
Total Rx claims
29,272
Beneficiaries
—
Total drug cost
$2.6M
Distinct drugs
261
Brand share
22.0%
Top prescribed drugs
Levothyroxine Sodium1,212 claims
Amlodipine Besylate1,114 claims
Atorvastatin Calcium920 claims
Gabapentin794 claims
Losartan Potassium749 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
7,038
Unique beneficiaries
—
Total services
25,622
Distinct HCPCS
54
Medicare payment
$339K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,263 Internal Medicine providers in AL — top quintile (cohort median 839).
REFERRAL NETWORK

Where John Warren'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). 75 inbound referrers · 171 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
John Miller
Internal Medicine · Tuscaloosa, AL
152608
Ross Vaughn
Internal Medicine · Tuscaloosa, AL
148717
Northstar Ems, Inc.
Ambulance Service Provider · Tuscaloosa, AL
121492
Leonard Jones
Internal Medicine · Tuscaloosa, AL
105577
Russell Scholl
Diagnostic Radiology · Tuscaloosa, AL
87242
Margaret Guarisco
Diagnostic Radiology · Tuscaloosa, AL
76247
Louis Lucas
Diagnostic Radiology · Birmingham, AL
76234
Bernard Veillon
Diagnostic Radiology · Tuscaloosa, AL
74177
Elizabeth Caldwell
Diagnostic Radiology · Tuscaloosa, AL
70225
SPEED, JAMES69272
Robert Hamiter
Diagnostic Radiology · Tuscaloosa, AL
65236
KING, CHARLES56193
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
THE DCH HEALTHCARE AUTHORITY6663,426
John Summerford
Internal Medicine · Tuscaloosa, AL
186818
Ross Vaughn
Internal Medicine · Tuscaloosa, AL
166938
Northstar Ems, Inc.
Ambulance Service Provider · Tuscaloosa, AL
166658
Scott Fulgham
Internal Medicine · Tuscaloosa, AL
161629
John Miller
Internal Medicine · Tuscaloosa, AL
159672
Leonard Jones
Internal Medicine · Tuscaloosa, AL
139634
Jerry Lushington
Diagnostic Radiology · Tuscaloosa, AL
123431
C Sneckenberger
Diagnostic Radiology · Tuscaloosa, AL
122398
KENDRICK, RICHARD120419
MILLER, GRADY117366
Cunningham Pathology, Llc
Clinical Laboratory · Birmingham, AL
115335
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.