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Michelle Woo, APN

NPI 1942690243ActiveIndividual· Nurse Practitioner, Gerontology· Chicago, IL

Nurse Practitioner, Gerontology (APN) with Oak Street Health Physicians Group PC, practicing in Chicago, Illinois. Their prescriptions cost Medicare Part D more than their services did: $664,811 for 6,261 claims, against $11,679 paid for services in 2024. Exact Sciences Corporation reported $16.15 in payments in 2025, mostly food and beverage. Lists Insight Hospital and Medical Center Chicago as a hospital affiliation.

Overview

NPI1942690243
StatusActive
Entity typeIndividual
CredentialAPN
Sole proprietorNo
NPI issuedJan 26, 2015
Last updated in NPPESMar 12, 2026
Certified by providerMar 12, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Nurse Practitioner, Gerontology Primary363LG0600X209.012124IL

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 patients73
Services billed253 across 19 procedure codes
Paid by Medicare$11,679

Part D prescriptions in 2024

Prescriptions (claims)6,261 · 16,836 30-day fills
Patients549
Total drug cost$664,811
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Graduation year2014
Medicare specialtyNurse Practitioner

Medical group

Hospital affiliation

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$16.15 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Exact Sciences Corporation$16.151

What the 2025 payments were for

  • Food and Beverage$16.15 · 1 payment

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

Other gerontology nurse practitioners in Chicago

All 72 gerontology nurse practitioners in Chicago · All gerontology nurse practitioners in Illinois