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Zachary Daniel Standefer, CRNA

NPI 1669041307ActiveIndividual· Nurse Anesthetist, Certified Registered· Alton, IL

Nurse Anesthetist, Certified Registered (CRNA) in Alton, Illinois, trained at Southern Illinois University School of Medicine (class of 2021). Medicare paid $23,739 for services to 145 patients in 2024. Merck Sharp & Dohme LLC reported $23.84 in payments in 2025, mostly food and beverage.

Overview

NPI1669041307
StatusActive
Entity typeIndividual
CredentialCRNA
Sole proprietorNo
NPI issuedJun 17, 2021
Last updated in NPPESJun 17, 2021
Certified by providerJun 13, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Nurse Anesthetist, Certified Registered Primary367500000X209023397IL

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 - Certified Registered Nurse Anesthetist (CRNA) (IL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients145
Services billed148 across 33 procedure codes
Paid by Medicare$23,739

Medicare sources and data years

Education and affiliations

Medical schoolSouthern Illinois University School of Medicine
Graduation year2021
Medicare specialtyCertified Registered Nurse Anesthetist (Crna)

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$23.84 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Merck Sharp & Dohme LLC$23.841

What the 2025 payments were for

  • Food and Beverage$23.84 · 1 payment

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

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