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 1811917578

John O'connorMD

Internal MedicineCalverton, NYI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
3,350
Beneficiaries
—
Total drug cost
$248K
Distinct drugs
87
Brand share
18.1%
Top prescribed drugs
Pantoprazole Sodium153 claims
Atorvastatin Calcium138 claims
Amlodipine Besylate136 claims
Rosuvastatin Calcium125 claims
Levothyroxine Sodium122 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
314
Unique beneficiaries
—
Total services
589
Distinct HCPCS
9
Medicare payment
$40K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 7,864 Internal Medicine providers in NY — above median (cohort median 552).
REFERRAL NETWORK

Where John O'connor'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). 53 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
CENTRAL SUFFOLK HOSPITAL2131,123
Quest Diagnostics Clinical Laboratories Inc
Clinical Laboratory · Melville, NY
202829
Laboratory Corporation Of America Holdings
Clinical Laboratory · Raritan, NJ
115277
Sunrise Medical Laboratories, Inc.
Clinical Laboratory · Hicksville, NY
47183
Ricardo Monserrate
Cardiology · Riverhead, NY
47163
Mitchell Meyerson
Dermatology · Riverhead, NY
4366
KIRSHY, DAVID3649
David Trachtenberg
Psychiatry · Manhasset Hills, NY
36127
Robert Goodman
Diagnostic Radiology · Riverhead, NY
3553
Deepali Sharma
Internal Medicine · Riverhead, NY
3179
David Gross
Diagnostic Radiology · Riverhead, NY
3047
UNIVERSITY HOSPITAL AT STONY BROOK3066
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.