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 1740478791

Karl ZhengM.D.

PRACTICESTANFORD HEALTH CARESee all providers at this practice →
AnesthesiologyStanford, CAI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
152
Unique beneficiaries
—
Total services
153
Distinct HCPCS
4
Medicare payment
$53K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 4,547 Anesthesiology providers in CA — top quintile (cohort median 182).
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Karl Zheng'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). 10 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Ivan Cheng
Orthopedic Surgery · Kyle, TX
47125
Serena Hu
Orthopedic Surgery · Stanford, CA
28108
Jaime Lopez
Neurosurgery · Stanford, CA
2126
MURRAY, MAI1818
Christopher Beaulieu
Diagnostic Radiology · Stanford, CA
1618
Zina Zarshenas Payman
Diagnostic Radiology · Stanford, CA
1420
Ann Leung
Diagnostic Radiology · Stanford, CA
1419
Linda Morimoto
Diagnostic Radiology · Stanford, CA
1213
Ingela Schnittger
Cardiology · Stanford, CA
1112
Kathryn Stevens
Diagnostic Radiology · Stanford, CA
1116
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.
QUALITY · MIPS · 2024
Final MIPS score
88.5
Quality
87.1
Cost
69.5
Improvement activities
40.0
Promoting interop.
100.0
Payment adjustment
0.57%
Group
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.