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Mark Sampson Winslow II, DDS

NPI 1144621236ActiveIndividual· Dentist· Porterville, CA

Dentist (DDS) in Porterville, California, licensed in CA, with an NPI issued in September 2014. Part D covered 32 prescriptions written in 2024, 84% of them generic.

Overview

NPI1144621236
StatusActive
Entity typeIndividual
CredentialDDS
Sole proprietorYes
NPI issuedSep 9, 2014
Last updated in NPPESSep 9, 2014

Specialties and licenses

TaxonomyCodeLicenseState
Dentist Primary122300000X63899CA

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 Order and Referring Only - Dentist (CA)

Part D prescriptions in 2024

Prescriptions (claims)32 · 34 30-day fills
Patients23
Total drug cost$196.15
Generic share84% 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

Other dentists in Porterville

All 32 dentists in Porterville · All dentists in California