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 1790193845

Kara WarnerNP

PRACTICEMGHSee all providers at this practice →
Nurse PractitionerBoston, MAI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
94
Unique beneficiaries
—
Total services
121
Distinct HCPCS
4
Medicare payment
$11K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 5,906 Nurse Practitioner providers in MA — below median (cohort median 289).
REFERRAL NETWORK

Where Kara Warner'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). 9 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
THE GENERAL HOSPITAL CORPORATION93268
Ramon Gonzalez
Diagnostic Radiology · Boston, MA
1823
HEDLEY-WHYTE, E1718
Daniel Cahill
Neurosurgery · Boston, MA
1745
Hillary Kelly
Diagnostic Radiology · Boston, MA
1522
Matthew Frosch
Pathology · Boston, MA
1518
COPEN, WILLIAM1314
Otto Rapalino
Diagnostic Radiology · Boston, MA
1221
Christopher William
Pathology · Boston, MA
1113
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.