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Stephanie Elizabeth O'Brien, DO

NPI 1346944105ActiveIndividual· Hospitalist· Tucson, AZ

Hospitalist (DO) in Tucson, Arizona, trained at Midwestern University, Chicago College of Osteopathic Med (class of 2019). Part D covered 123 prescriptions written in 2024, 82% of them generic. Amgen Inc. was the largest of 4 companies reporting payments in 2025, $565.93 in all, mostly food and beverage.

Overview

NPI1346944105
StatusActive
Entity typeIndividual
CredentialDO
Sole proprietorNo
NPI issuedMar 27, 2023
Last updated in NPPESJul 9, 2026
Certified by providerJul 9, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Hospitalist Primary208M00000X012484AZ
Internal Medicine207R00000X012484AZ

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 - Internal Medicine (AZ)

Part D prescriptions in 2024

Prescriptions (claims)123 · 180 30-day fills
Patients51
Total drug cost$19,474
Generic share82% of claims

Medicare sources and data years

Education and affiliations

Medical schoolMidwestern University, Chicago College of Osteopathic Med
Graduation year2019
Medicare specialtyInternal Medicine

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$565.93 · 9 payments from 4 companies

Top paying companies in 2025

CompanyAmountPayments
Amgen Inc.$293.263
Novo Nordisk Inc$137.772
Teleflex LLC$103.803
Alexion Pharmaceuticals, Inc.$31.101

What the 2025 payments were for

  • Food and Beverage$565.93 · 9 payments

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

Other hospitalists in Tucson

All 50 hospitalists in Tucson · All hospitalists in Arizona