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Carrie L. Sieren, CNP

NPI 1407619828ActiveIndividual· Nurse Practitioner, Family· Springfield, IL

Nurse Practitioner, Family (CNP) with Springfield Clinic, LLP and 1 other group, practicing in Springfield, Illinois. Their prescriptions cost Medicare Part D more than their services did: $37,834 for 172 claims, against $21,441 paid for services in 2024. Tg Therapeutics, Inc. was the largest of 31 companies reporting payments in 2025, $3,216 in all, mostly food and beverage. Lists Decatur Memorial Hospital and 4 other hospitals as hospital affiliations.

Overview

NPI1407619828
StatusActive
Entity typeIndividual
CredentialCNP
Sole proprietorNo
NPI issuedJan 31, 2024
Last updated in NPPESSep 11, 2024
Certified by providerSep 11, 2024

Specialties and licenses

TaxonomyCodeLicenseState
Nurse Practitioner, Family Primary363LF0000X209029257IL

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 - Nurse Practitioner (IL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients160
Services billed209 across 11 procedure codes
Paid by Medicare$21,441

Part D prescriptions in 2024

Prescriptions (claims)172 · 382 30-day fills
Patients88
Total drug cost$37,834
Generic share79% of claims

Medicare sources and data years

Education and affiliations

Graduation year2023
Medicare specialtyNurse Practitioner
TelehealthOffers telehealth

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$3,216 · 152 payments from 31 companies
  • 2024$3,305 · 104 payments from 21 companies

Top paying companies in 2025

CompanyAmountPayments
Tg Therapeutics, Inc.$448.5124
Abbvie Inc.$367.6733
Alexion Pharmaceuticals, Inc.$243.599
Amgen Inc.$215.574
Biogen, Inc.$201.779

What the 2025 payments were for

  • Food and Beverage$3,216 · 152 payments

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

Other family nurse practitioners in Springfield

All 310 family nurse practitioners in Springfield · All family nurse practitioners in Illinois