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Walter A. Orenstein, MD

NPI 1467482109ActiveIndividual· Internal Medicine, Infectious Disease· Atlanta, GA

Internal Medicine, Infectious Disease (MD) in Atlanta, Georgia, licensed in GA, with an NPI issued in July 2006. Modernatx, Inc. was the largest of 2 companies reporting payments in 2025, $14,084 in all, mostly consulting fees.

Overview

NPI1467482109
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJul 4, 2006
Last updated in NPPESJul 8, 2007

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Infectious Disease Primary207RI0200X018172GA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

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

Medicare

Enrollment (PECOS)Not in the public enrollment file of Oct 1, 2026

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$14,084 · 9 payments from 2 companies
  • 2024$33,858 · 17 payments from 5 companies

Top paying companies in 2025

CompanyAmountPayments
Modernatx, Inc.$12,3036
Merck Sharp & Dohme LLC$1,7813

What the 2025 payments were for

  • Consulting Fee$13,698 · 7 payments
  • Travel and Lodging$261.42 · 1 payment
  • Food and Beverage$125.00 · 1 payment

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

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