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Chetachi A. Okereke, M.D, M.B.B.S

NPI 1083842199ActiveIndividual· Internal Medicine, Rheumatology· Walnut Creek, CA

Internal Medicine, Rheumatology (M.D, M.B.B.S) with Permanente Medical Group Inc, practicing in Walnut Creek, California. Part D covered 1,765 prescriptions written in 2024, 77% of them generic.

Overview

NPI1083842199
StatusActive
Entity typeIndividual
CredentialM.D, M.B.B.S
Sole proprietorYes
NPI issuedJun 26, 2009
Last updated in NPPESFeb 11, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Rheumatology Primary207RR0500XA109220CA
Internal Medicine207R00000XA109220CA

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 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Rheumatology (CA)

Part D prescriptions in 2024

Prescriptions (claims)1,765 · 4,076 30-day fills
Patients479
Total drug cost$1,219,776
Generic share77% of claims

Medicare sources and data years

Education and affiliations

Graduation year2001
Medicare specialtyRheumatology
Secondary specialtiesInternal Medicine
TelehealthOffers telehealth

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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