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Clyde W. Dayhoff Jr., DO

NPI 1255417382ActiveIndividual· Family Medicine· Herscher, IL

Family Medicine (DO) in Herscher, Illinois, trained at Midwestern University, Chicago College of Osteopathic Med (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $579,567 for 4,300 claims, against $86,461 paid for services in 2024. Novo Nordisk Inc was the largest of 23 companies reporting payments in 2025, $1,037 in all, mostly food and beverage.

Overview

NPI1255417382
StatusActive
Entity typeIndividual
CredentialDO
Sole proprietorNo
NPI issuedOct 31, 2006
Last updated in NPPESJul 8, 2007

Specialties and licenses

TaxonomyCodeLicenseState
Family Medicine Primary207Q00000X—IL

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 patients260
Services billed1,828 across 47 procedure codes
Paid by Medicare$86,461

Part D prescriptions in 2024

Prescriptions (claims)4,300 · 10,049 30-day fills
Patients390
Total drug cost$579,567
Generic share79% of claims

Medicare sources and data years

Education and affiliations

Medical schoolMidwestern University, Chicago College of Osteopathic Med
Graduation year1995
Medicare specialtyFamily Practice

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,037 · 57 payments from 23 companies
  • 2024$1,110 · 63 payments from 18 companies

Top paying companies in 2025

CompanyAmountPayments
Novo Nordisk Inc$220.7916
Pfizer Inc.$140.286
Lilly USA, LLC$84.095
Glaxosmithkline, LLC.$69.904
Amgen Inc.$54.793

What the 2025 payments were for

  • Food and Beverage$1,037 · 57 payments

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

Other family medicine physicians in Herscher

All family medicine physicians in Illinois