caretrace.iopowered by▸healthparse
SearchCohort Builder
Tools▾
KOL FinderTerritoriesDrug Compare
AI Query
Browse▾
By stateBy specialty
Pricing
SearchCohort BuilderToolsKOL FinderTerritoriesDrug CompareAI QueryBrowseBy stateBy specialtyPricing
PROVIDER PROFILE · NPI 1154398055

Hak Ko

Psychiatry & NeurologyWilliamsville, NYI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
MEDICARE UTILIZATION · PART B · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 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 Hak Ko'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). 29 inbound referrers · 60 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
NIAGARA FALLS MEMORIAL MEDICAL CENTER3651,782
Lasalle Ambulance Inc
Ambulance Service Provider · Buffalo, NY
93255
MOUNT ST. MARY'S HOSPITAL OF NIAGARA FALLS92282
Gerald Gorman
Emergency Medicine · Brockton, MA
71148
Don Collure
Emergency Medicine · Dunkirk, NY
66154
FINCH, VIRGINIA60166
David Ludwig
Diagnostic Radiology · Niagara Falls, NY
54102
PERRY, MARK4892
Joseph Besl
Physician Assistant · Grand Island, NY
4466
Kalaiselvi Rajendran
Psychiatry · Niagara Falls, NY
43124
Kathleen Ventry
Nurse Practitioner · Niagara Falls, NY
32186
EASTERN NIAGARA HOSPITAL, INC3055
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
NIAGARA FALLS MEMORIAL MEDICAL CENTER4403,481
FINCH, VIRGINIA109318
Viktor Yatsynovich
Psychiatry & Neurology · Niagara Falls, NY
96175
Lasalle Ambulance Inc
Ambulance Service Provider · Buffalo, NY
91245
MOUNT ST. MARY'S HOSPITAL OF NIAGARA FALLS89268
Quest Diagnostics Of Pennsylvania, Inc.
Clinical Laboratory · Pittsburgh, PA
71190
YAP, DEDENIA67208
Don Collure
Emergency Medicine · Dunkirk, NY
65149
Gerald Gorman
Emergency Medicine · Brockton, MA
64154
Joseph Sciammarella
Emergency Medicine · Greenport, NY
54115
Chiemeka Nwokonko
Emergency Medicine · Wellsville, NY
52105
Shelley Bath
Diagnostic Radiology · Middleport, NY
5293
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.