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

Martha Whitfield Davis, PHD

Individual provider Clinical Psychologist · NPI 1104891977

Martha Whitfield Davis, PHD is a Clinical Psychologist in Des Moines, Washington. Qualified in 1988, 38 years ago. Accepts Medicare assignment. Licensed in Washington.

Years since qualifying
38
Licensed in
WA
In the registry since
2006
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

22517 7th Ave S
Des Moines, WA 98198-6820
Phone: (206) 870-9051
Fax: (206) 870-9081
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 1558 (WA)

Record details

NPI number1104891977
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedFebruary 23, 2006
Last updated in NPPESJuly 13, 2026
Mailing address22517 7th Ave S, Des Moines, WA 98198-6820

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1988 (38 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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