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Gregory J. Louis, M.D.

NPI 1346237344ActiveIndividual· Specialist· Euclid, OH

Specialist (M.D.) in Euclid, Ohio, licensed in OH, with an NPI issued in October 2005. In 2024 Medicare paid $223,463 for 1,022 patients, and Part D covered 4,060 of their prescriptions, 73% of them generic. Sight Sciences, Inc. was the largest of 2 companies reporting payments in 2025, $38.25 in all, mostly food and beverage.

Overview

NPI1346237344
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedOct 4, 2005
Last updated in NPPESFeb 9, 2010

Specialties and licenses

TaxonomyCodeLicenseState
Specialist Primary174400000X35052070OH

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 (OH)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients1,022
Services billed2,740 across 42 procedure codes
Paid by Medicare$223,463

Part D prescriptions in 2024

Prescriptions (claims)4,060 · 6,724 30-day fills
Patients1,042
Total drug cost$175,307
Generic share73% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$38.25 · 2 payments from 2 companies
  • 2024$23.95 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Sight Sciences, Inc.$20.291
Thea Pharma Inc.$17.961

What the 2025 payments were for

  • Food and Beverage$38.25 · 2 payments

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

Other Specialist providers in Euclid

All Specialist providers in Ohio