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Valerie Siqueira Duhn, MD

NPI 1023296050ActiveIndividual· Internal Medicine, Nephrology· Kalamazoo, MI

Internal Medicine, Nephrology (MD) in Kalamazoo, Michigan, trained at Indiana University School of Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $486,770 for 1,782 claims, against $148,420 paid for services in 2024. Novo Nordisk Inc was the largest of 2 companies reporting payments in 2025, $46.15 in all, mostly food and beverage.

Overview

NPI1023296050
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJan 31, 2008
Last updated in NPPESNov 9, 2023
Certified by providerNov 9, 2023

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 - Nephrology (MI)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients309
Services billed998 across 20 procedure codes
Paid by Medicare$148,420

Part D prescriptions in 2024

Prescriptions (claims)1,782 · 3,990 30-day fills
Patients289
Total drug cost$486,770
Generic share84% of claims

Medicare sources and data years

Education and affiliations

Medical schoolIndiana University School of Medicine
Graduation year2000
Medicare specialtyNephrology
Secondary specialtiesInternal Medicine
TelehealthOffers telehealth

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$46.15 · 2 payments from 2 companies
  • 2024$25.03 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Novo Nordisk Inc$24.131
Travere Therapeutics, Inc.$22.021

What the 2025 payments were for

  • Food and Beverage$46.15 · 2 payments

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

Other Internal Medicine, Nephrology providers in Kalamazoo

All Internal Medicine, Nephrology providers in Michigan →