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Jeffrey C. Tanzi, DO

NPI 1891706107ActiveIndividual· Family Medicine· Ottawa, IL

Family Medicine (DO) in Ottawa, Illinois, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $316,909 for 3,511 claims, against $45,846 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 2 companies reporting payments in 2025, $159.94 in all, mostly food and beverage.

Overview

NPI1891706107
StatusActive
Entity typeIndividual
CredentialDO
Sole proprietorNo
NPI issuedAug 11, 2006
Last updated in NPPESOct 17, 2022
Certified by providerOct 17, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Family Medicine Primary207Q00000X036.121629IL

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 (IL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients193
Services billed674 across 33 procedure codes
Paid by Medicare$45,846

Part D prescriptions in 2024

Prescriptions (claims)3,511 · 7,591 30-day fills
Patients280
Total drug cost$316,909
Generic share86% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Graduation year2005
Medicare specialtyFamily Practice

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$159.94 · 8 payments from 2 companies
  • 2024$870.33 · 40 payments from 14 companies

Top paying companies in 2025

CompanyAmountPayments
Astrazeneca Pharmaceuticals LP$102.445
Abbvie Inc.$57.503

What the 2025 payments were for

  • Food and Beverage$159.94 · 8 payments

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

Other family medicine physicians in Ottawa

All 16 family medicine physicians in Ottawa · All family medicine physicians in Illinois