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Mark R. Fitzsimmons, MD

NPI 1639284706ActiveIndividual· Family Medicine· Port Washington, WI

Family Medicine (MD) in Port Washington, Wisconsin, trained at Medical College of Wisconsin (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $645,049 for 7,919 claims, against $70,085 paid for services in 2024. Astrazeneca Pharmaceuticals LP reported $124.99 in payments in 2024, mostly food and beverage.

Overview

NPI1639284706
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 20, 2006
Last updated in NPPESNov 18, 2021
Certified by providerNov 18, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Family Medicine Primary207Q00000X33627WI

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 - Family Practice (WI)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients224
Services billed871 across 42 procedure codes
Paid by Medicare$70,085

Part D prescriptions in 2024

Prescriptions (claims)7,919 · 18,242 30-day fills
Patients556
Total drug cost$645,049
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Medical schoolMedical College of Wisconsin
Graduation year1991
Medicare specialtyFamily Practice
TelehealthOffers telehealth

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2024$124.99 · 1 payment from 1 company

Top paying companies in 2024

CompanyAmountPayments
Astrazeneca Pharmaceuticals LP$124.991

What the 2024 payments were for

  • Food and Beverage$124.99 · 1 payment

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

Other Family Medicine providers in Port Washington

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