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Katherine Elizabeth Oakley, M.D.

NPI 1083064935ActiveIndividual· General Practice· Claremont, CA

General Practice (M.D.) in Claremont, California, licensed in CA, with an NPI issued in June 2016. Their prescriptions cost Medicare Part D more than their services did: $137,967 for 1,520 claims, against $2,657 paid for services in 2024. Evofem Biosciences, Inc. reported $22.24 in payments in 2025, mostly food and beverage.

Overview

NPI1083064935
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 21, 2016
Last updated in NPPESDec 6, 2021

Specialties and licenses

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 (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients31
Services billed446 across 14 procedure codes
Paid by Medicare$2,657

Part D prescriptions in 2024

Prescriptions (claims)1,520 · 3,931 30-day fills
Patients261
Total drug cost$137,967
Generic share89% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$22.24 · 2 payments from 1 company

Top paying companies in 2025

CompanyAmountPayments
Evofem Biosciences, Inc.$22.242

What the 2025 payments were for

  • Food and Beverage$22.24 · 2 payments

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

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