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Cornelius E. Regan Jr., MD

NPI 1508220252ActiveIndividual· Ophthalmology, Retina Specialist· Hattiesburg, MS

Ophthalmology, Retina Specialist (MD) in Hattiesburg, Mississippi, trained at Louisiana State University School of Medicine in New Orleans (class of 2016). In 2024 Medicare paid $613,727 for 503 patients, and Part D covered 470 of their prescriptions, 64% of them generic. Alcon Vision LLC was the largest of 3 companies reporting payments in 2025, $162.59 in all, mostly food and beverage.

Overview

NPI1508220252
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedApr 8, 2016
Last updated in NPPESDec 28, 2022
Certified by providerDec 28, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Ophthalmology, Retina Specialist Primary207WX0107X27509MS
Ophthalmology207W00000X60893TN

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Ophthalmology (MS); Practitioner - Ophthalmology (TN)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients503
Services billed10,983 across 40 procedure codes
Paid by Medicare$613,727

Part D prescriptions in 2024

Prescriptions (claims)470 · 634 30-day fills
Patients116
Total drug cost$17,918
Generic share64% of claims

Medicare sources and data years

Education and affiliations

Medical schoolLouisiana State University School of Medicine in New Orleans
Graduation year2016
Medicare specialtyOphthalmology

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$162.59 · 3 payments from 3 companies
  • 2024$21.06 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Alcon Vision LLC$118.821
Astellas Pharma US Inc$28.531
Genentech USA, Inc.$15.241

What the 2025 payments were for

  • Food and Beverage$162.59 · 3 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other Ophthalmology, Retina Specialist providers in Hattiesburg

All Ophthalmology, Retina Specialist providers in Mississippi