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PROVIDER PROFILE · NPI 1508018508

Lewis LengM.D.

NeurosurgerySan Francisco, CAI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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PRESCRIBING · PART D · 2024
Total Rx claims
64
Beneficiaries
—
Total drug cost
$349
Distinct drugs
3
Brand share
0.0%
Top prescribed drugs
Meloxicam27 claims
Gabapentin23 claims
Baclofen14 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
459
Unique beneficiaries
—
Total services
503
Distinct HCPCS
11
Medicare payment
$65K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 497 Neurosurgery providers in CA — top quintile (cohort median 341).
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$71
Payment records
2
By payment type
Food and Beverage$71
REFERRAL NETWORK

Where Lewis Leng'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 · 27 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Derk Purcell
Diagnostic Radiology · San Francisco, CA
3590
CARPENTER, HOWARD3474
MOON, KIRK2557
Thomas Kaiser
Cardiology · San Francisco, CA
2445
RICHEY, LUTHER2068
City & County Of San Francisco
Ambulance Service Provider · San Francisco, CA
1729
Lily Park
Dermatology · Modesto, CA
1649
NPI 12755679431334
Stefani Wedl
Internal Medicine · Castro Valley, CA
1241
Ovidiu Dumitrescu
Internal Medicine · San Francisco, CA
1128
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
SUTTER BAY HOSPITALS137460
Jerome Barakos
Diagnostic Radiology · San Francisco, CA
55147
SUTTER BAY HOSPITALS53147
OSHITA, ALLEN40110
Brian Andrews
Neurosurgery · San Francisco, CA
36101
William Harvey
Diagnostic Radiology · San Francisco, CA
2867
Maya Meux
Diagnostic Radiology · San Francisco, CA
2767
Amy Huang
Diagnostic Radiology · San Francisco, CA
2773
Protransport 1
Ambulance Service Provider · Rohnert Park, CA
2664
Thomas Kaiser
Cardiology · San Francisco, CA
2575
CARPENTER, HOWARD2273
Laboratory Corporation Of America
Clinical Laboratory · San Diego, CA
2262
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.