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PROVIDER PROFILE · NPI 1154326122

John WittpennM.D.

OphthalmologyEast Setauket, NYI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
3,126
Unique beneficiaries
—
Total services
3,985
Distinct HCPCS
21
Medicare payment
$393K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,438 Ophthalmology providers in NY — above median (cohort median 1,869).
PRESCRIBING · PART D · 2024
Total Rx claims
2,029
Beneficiaries
—
Total drug cost
$1.1M
Distinct drugs
24
Brand share
30.9%
Top prescribed drugs
Prednisolone Acetate542 claims
Loteprednol Etabonate308 claims
Ofloxacin253 claims
Erythromycin Base109 claims
Valacyclovir Hcl102 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$1K
Payment records
32
By payment type
Food and Beverage$1K
REFERRAL NETWORK

Where John Wittpenn'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). 49 inbound referrers · 80 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Quest Diagnostics Clinical Laboratories Inc
Clinical Laboratory · Melville, NY
193551
JOHN T. MATHER MEMORIAL HOSPITAL134222
Sunrise Medical Laboratories, Inc.
Clinical Laboratory · Hicksville, NY
128244
Laboratory Corporation Of America Holdings
Clinical Laboratory · Raritan, NJ
120215
Stephen Vlay
Clinical Cardiac Electrophysiology · East Setauket, NY
72164
ENZO CLINICAL LABS, INC.65138
William Lawson
Interventional Cardiology · Islandia, NY
61171
Anzhelika Vaccaro
Ophthalmology · Port Jefferson, NY
4368
Northwell Health Laboratories
Clinical Laboratory · New Hyde Park, NY
41195
ST. CHARLES HOSPITAL4066
Ameripath New York Llc
Clinical Laboratory · White Plains, NY
2840
Ketan Laud
Ophthalmology · Massapequa, NY
2647
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
UNIVERSITY HOSPITAL AT STONY BROOK3241,160
Quest Diagnostics Clinical Laboratories Inc
Clinical Laboratory · Melville, NY
163477
JOHN T. MATHER MEMORIAL HOSPITAL132216
Sunrise Medical Laboratories, Inc.
Clinical Laboratory · Hicksville, NY
129265
Laboratory Corporation Of America Holdings
Clinical Laboratory · Raritan, NJ
123213
Stephen Vlay
Clinical Cardiac Electrophysiology · East Setauket, NY
71142
William Lawson
Interventional Cardiology · Islandia, NY
5777
ENZO CLINICAL LABS, INC.53113
Northwell Health Laboratories
Clinical Laboratory · New Hyde Park, NY
46191
ST. CHARLES HOSPITAL4383
Anzhelika Vaccaro
Ophthalmology · Port Jefferson, NY
3971
Daniel Garibaldi
Ophthalmology · Rockville Centre, NY
3949
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.