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John A. Hayward, MD

NPI 1376539411ActiveIndividual· Internal Medicine, Hematology & Oncology· Chico, CA

Internal Medicine, Hematology & Oncology (MD) in Chico, California, licensed in CA, with an NPI issued in September 2005. Their prescriptions cost Medicare Part D more than their services did: $90,833 for 1,487 claims, against $1,882 paid for services in 2024.

Overview

NPI1376539411
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorYes
NPI issuedSep 23, 2005
Last updated in NPPESMay 19, 2010

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Hematology & Oncology Primary207RH0003XG061995CA

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 - Internal Medicine (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients14
Services billed34 across 6 procedure codes
Paid by Medicare$1,882

Part D prescriptions in 2024

Prescriptions (claims)1,487 · 1,527 30-day fills
Patients37
Total drug cost$90,833
Generic share83% of claims

Medicare sources and data years

Industry payments (Open Payments)

None reported for 2025 or 2024.

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

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