Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Prof. Marsha J Treadwell, PHD

Individual provider Health Service Psychologist · NPI 1851955058

Prof. Marsha J Treadwell, PHD is a Health Service Psychologist in Oakland, California. Licensed in California. Registered with an NPI since 2019.

Licensed in
CA
In the registry since
2019
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

747 52nd St
Oakland, CA 94609-1809
Phone: (510) 428-3356
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Health Service Psychologist (primary) Taxonomy 103TH0100X · Licence PSY9981 (CA)

Record details

NPI number1851955058
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedApril 24, 2019
Last updated in NPPESApril 24, 2019

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