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Guerline Sinsmyr, MD

NPI 1255715462ActiveIndividual· Internal Medicine· Creston, IA

Internal Medicine (MD) with Theoria Medical, practicing in Creston, Iowa. Part D covered 4,081 prescriptions written in 2024, 86% of them generic. Lilly USA, LLC was the largest of 2 companies reporting payments in 2025, $28.81 in all, mostly food and beverage. Lists Dallas County Hospital and 1 other hospital as hospital affiliations.

Overview

NPI1255715462
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJul 17, 2015
Last updated in NPPESMar 17, 2025
Certified by providerMar 17, 2025

Specialties and licenses

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)Enrolled Practitioner - Internal Medicine (IA)

Part D prescriptions in 2024

Prescriptions (claims)4,081 · 7,591 30-day fills
Patients246
Total drug cost$272,699
Generic share86% of claims

Medicare sources and data years

Education and affiliations

Graduation year2013
Medicare specialtyInternal Medicine

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$28.81 · 2 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Lilly USA, LLC$14.461
Exact Sciences Corporation$14.351

What the 2025 payments were for

  • Food and Beverage$28.81 · 2 payments

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

Other Internal Medicine providers in Creston

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