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PROVIDER PROFILE · NPI 1528175346

Leif HassM.D.

HospitalistOakland, CAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
139
Beneficiaries
—
Total drug cost
$13K
Distinct drugs
9
Brand share
29.5%
Top prescribed drugs
Amlodipine Besylate21 claims
Prednisone21 claims
Pantoprazole Sodium17 claims
Apixaban16 claims
Metoprolol Tartrate14 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
511
Unique beneficiaries
—
Total services
819
Distinct HCPCS
5
Medicare payment
$67K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,917 Hospitalist providers in CA — top quintile (cohort median 446).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Leif Hass'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). 58 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Kathryn Klima
Diagnostic Radiology · Oakland, CA
126590
RICH, PHILIP98402
Linda Gordon
Diagnostic Radiology · San Jose, CA
72305
Sangeeta Gambhir
Diagnostic Radiology · Walnut Creek, CA
58264
Royal Ambulance Inc.
Ambulance Service Provider · San Leandro, CA
39138
NPI 124529964339119
Robert Kim
Diagnostic Radiology · Walnut Creek, CA
31108
Alvin Rivera
Internal Medicine · Berkeley, CA
31113
SUTTER EAST BAY HOSPITALS29117
Mitul Kadakia
Interventional Cardiology · Oakland, CA
2888
Jeeven Brah
Internal Medicine · Oakland, CA
27199
Reina Rodriguez
Hospitalist · Oakland, CA
24132
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.