Markham Giblin, PHD

NPI 1013971167 · on the registry since 2006

Practice

Address: 1300 Nw Harrison Blvd
Ste # 140
Corvallis, OR 97330
Phone: (541) 738-6516
Fax: (541) 738-6517
Organisation at this address: David A Hart Md Pc
Barbara Garretson Msw, Lcsw, Pc
Transformative Health And Wellness
Inferred from a shared address, not stated in the registry.
Clinicians at this address: 30

Registry record

Primary taxonomy: Psychologist
103T00000X
Licence states on file: OR
From the registry's licence fields, which are often incomplete.
Sex: Male
Record last updated: 2026-07-13

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in Oregon