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 1053516641

Karen HirschMD

PRACTICESTANFORD HEALTH CARESee all providers at this practice →
NeurologyStanford, CAI
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
Final MIPS score
88.5
Quality
87.1
Cost
69.5
Improvement activities
40.0
Promoting interop.
100.0
Payment adjustment
0.57%
Group
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 050242
Hospital
CCN 050441
Hospital
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$41
Payment records
1
By payment type
Food and Beverage$41
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
90
Unique beneficiaries
—
Total services
142
Distinct HCPCS
3
Medicare payment
$21K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,670 Neurology providers in CA — bottom quintile (cohort median 581).
REFERRAL NETWORK

Where Karen Hirsch'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). 7 inbound referrers · 17 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Zina Zarshenas Payman
Diagnostic Radiology · Stanford, CA
2242
Ann Leung
Diagnostic Radiology · Stanford, CA
1670
Nancy Fischbein
Diagnostic Radiology · Stanford, CA
1638
Kathryn Stevens
Diagnostic Radiology · Stanford, CA
1244
Gregory Zaharchuck
Diagnostic Radiology · Stanford, CA
1227
Joshua Spin
Cardiology · Stanford, CA
1233
Bruce Daniel
Diagnostic Radiology · Stanford, CA
1128
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
Haiwei Guo
Diagnostic Radiology · Stanford, CA
31168
Protransport 1
Ambulance Service Provider · Rohnert Park, CA
2559
STANFORD HEALTH CARE2394
Ann Leung
Diagnostic Radiology · Stanford, CA
22107
Linda Morimoto
Diagnostic Radiology · Stanford, CA
1641
Paul Zei
Clinical Cardiac Electrophysiology · Boston, MA
1672
Joshua Spin
Cardiology · Stanford, CA
1545
WEINACKER, ANN1450
Waimei Tai
Neurology · Newark, DE
1257
FEDERLE, MICHAEL1227
Zina Zarshenas Payman
Diagnostic Radiology · Stanford, CA
1224
JEFFREY, ROBERT1233
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.