What is Marc Lazzaro's specialty?

Marc Lazzaro (NPI 1851557623) is a Medicare-billing provider whose primary specialty is Neurology in Milwaukee, WI.

Where does Marc Lazzaro practice?

Marc Lazzaro practices in Milwaukee, WI, based on the location reported in the CMS Medicare provider datasets for NPI 1851557623.

How much does Medicare pay Marc Lazzaro?

Marc Lazzaro (NPI 1851557623) received approximately $27K in total Medicare Part B payments, serving 160 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1851557623

Marc LazzaroM.D.

NeurologyMilwaukee, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

199

Unique beneficiaries

—

Total services

261

Distinct HCPCS

Medicare payment

$21K

Peer benchmark

Total Medicare services vs. 268 Neurology providers in WI — below median (cohort median 374).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$973

Distinct drugs

Brand share

35.7%

Top prescribed drugs

Clopidogrel Bisulfate20 claims

Atorvastatin Calcium18 claims

Levetiracetam18 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Marc Lazzaro'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). 17 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
FROEDTERT MEMORIAL LUTHERAN HOSPITAL, INC.	167	561
MARK, LEIGHTON	32	63
Evgueni Fayn Clinical Cardiac Electrophysiology · Milwaukee, WI	30	74
NPI 1306898663	24	57
MALMSTEN, CATHARINE	23	60
Mazen Noufal Neurology · Milwaukee, WI	21	40
Ahsan Sattar Neurology · East Lansing, MI	21	47
John Lynch Neurology · Milwaukee, WI	18	48
Kaushik Shahir Diagnostic Radiology · Milwaukee, WI	15	30
Panayotis Fasseas Interventional Cardiology · Milwaukee, WI	15	30
Vijay Johnson Critical Care (Intensivists) · Summit, WI	15	42
Rajeev Mannem Radiation Oncology · Milwaukee, WI	15	31

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.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events