PROVIDER PROFILE · NPI 1417928896

Mark Sivak

Psychiatry & NeurologyNew York, NYI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$21K

Distinct drugs

Brand share

100.0%

Top prescribed drugs

Immune Globul G/Gly/Iga Avg 4611 claims

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 Mark Sivak'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). 2 inbound referrers · 4 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MOUNT SINAI HOSPITAL	42	60
Jesse Weinberger Neurology · New York, NY	36	58

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
MOUNT SINAI HOSPITAL	46	274
Jesse Weinberger Neurology · New York, NY	36	47
Quest Diagnostics Incorporated Clinical Laboratory · Clifton, NJ	21	72
MOUNT SINAI HOSPITAL	15	17

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