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Devin Colin Oliver Walker, DO

NPI 1801384599ActiveIndividual· Psychiatry & Neurology, Child & Adolescent Psychiatry· Fontana, CA

Psychiatry & Neurology, Child & Adolescent Psychiatry (DO) with Southern California Permanente Medical Group, practicing in Fontana, California. Part D covered 387 prescriptions written in 2024, 98% of them generic.

Overview

NPI1801384599
StatusActive
Entity typeIndividual
CredentialDO
Sole proprietorNo
NPI issuedApr 27, 2018
Last updated in NPPESMay 1, 2024
Certified by providerMay 1, 2024

Specialties and licenses

TaxonomyCodeLicenseState
Psychiatry & Neurology, Child & Adolescent Psychiatry Primary2084P0804X20A17649CA

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 - Psychiatry (CA)

Part D prescriptions in 2024

Prescriptions (claims)387 · 824 30-day fills
Patients135
Total drug cost$15,016
Generic share98% of claims

Medicare sources and data years

Education and affiliations

Graduation year2018
Medicare specialtyPsychiatry

Medical group

Source: CMS Care Compare

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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