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 1619944758

Karl GruberMD

PathologyN Charleston, SCI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
552
Unique beneficiaries
—
Total services
914
Distinct HCPCS
9
Medicare payment
$24K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 151 Pathology providers in SC — bottom quintile (cohort median 2,143).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Karl Gruber'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). 65 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
TRIDENT MEDICAL CENTER LLC6791,276
Brian Burke
Diagnostic Radiology · Mount Pleasant, SC
85153
Phillip Raduazo
Diagnostic Radiology · Grand Rapids, MI
77111
Robbie Taha
Gastroenterology · Saint Clair Shores, MI
68203
Thomas Puckette
Diagnostic Radiology · Mount Pleasant, SC
5986
Salvatore Moscatello
Gastroenterology · North Charleston, SC
57171
Aron Rosenthal
Diagnostic Radiology · Mount Pleasant, SC
5779
John Mcgue
Diagnostic Radiology · Mount Pleasant, SC
5593
BRYANS, WILLIAM5556
Matthew Dunn
Diagnostic Radiology · Charleston, SC
5490
MULLANEY, JOSEPH5283
Rya Kaplan
Gastroenterology · Mount Pleasant, SC
50127
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.