Skip to content

Gerilyn Olsen, MD

NPI 1538746847ActiveIndividual· Dermatology· Brookfield, WI

Dermatology (MD) in Brookfield, Wisconsin, trained at Medical College of Wisconsin (class of 2021). Enrolled in Medicare as practitioner - dermatology and practitioner - dermatology.

Overview

NPI1538746847
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedMar 24, 2021
Last updated in NPPESSep 16, 2026
Certified by providerSep 16, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Dermatology Primary207N00000X1021464WI

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 - Dermatology (MA); Practitioner - Dermatology (WI)

Medicare sources and data years

Education and affiliations

Medical schoolMedical College of Wisconsin
Graduation year2021
Medicare specialtyDermatology

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

None reported for 2025 or 2024.

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

Other Dermatology providers in Brookfield

All Dermatology providers in Wisconsin →