Individual provider · Type 1 NPI

Gwyneth Leigh Holderby, DNP

Family Nurse Practitioner · Alva, OK

NPI number 1124447305 Active

About NPI 1124447305

Gwyneth Leigh Holderby, DNP's National Provider Identifier is 1124447305, issued on Apr 15, 2014. The primary taxonomy on file is Family Nurse Practitioner (363LF0000X), and the practice location is in Alva, OK. The record was last updated on Jul 21, 2026.