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PROVIDER PROFILE · NPI 1851314611

Leif JohnsonM.D.

PRACTICECRYSTAL TERRYSee all providers at this practice →
Emergency MedicineAlameda, CAI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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PRESCRIBING · PART D · 2024
Total Rx claims
68
Beneficiaries
—
Total drug cost
$526
Distinct drugs
4
Brand share
36.8%
Top prescribed drugs
Cephalexin28 claims
Ibuprofen15 claims
Albuterol Sulfate13 claims
Sulfamethoxazole/Trimethoprim12 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
559
Unique beneficiaries
—
Total services
631
Distinct HCPCS
8
Medicare payment
$60K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 5,287 Emergency Medicine providers in CA — top quintile (cohort median 355).
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Leif Johnson'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). 11 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
BLOOM, ROBERT86159
Royal Ambulance Inc.
Ambulance Service Provider · San Leandro, CA
3271
Catherine Pyun
Internal Medicine · Alameda, CA
3174
James Yeh
Internal Medicine · Alameda, CA
2455
Lilavati Indulkar
Internal Medicine · Oakland, CA
1826
William Kammerer
Emergency Medicine · Daly City, CA
1753
Alka Sharma
Internal Medicine · Alameda, CA
1464
Robert Deutsch
Pulmonary Disease · Alameda, CA
1436
SUTTER EAST BAY HOSPITALS1328
Bernice Rodrigues
Emergency Medicine · Castro Valley, CA
1137
Edward Lee
Emergency Medicine · Alameda, CA
1142
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.