MARTHA WHITFIELD DAVIS PHD
NPI 1104891977
Psychologist - Clinical in Des Moines, WA
About Martha Whitfield Davis Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARTHA WHITFIELD DAVIS PHD (NPI 1104891977) is an individual clinical provider in Des Moines, Washington, licensed in Washington (1558) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1988).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Martha Whitfield Davis Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98198 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Martha Davis's NPI number?
The NPI number for Martha Davis is 1104891977. It was assigned to this individual provider in the NPPES registry on February 23, 2006.
Where is Martha Davis located?
Martha Davis practices at 22517 7th Ave S, Des Moines, WA 98198. The listed phone number is (206) 870-9051.
What is Martha Davis's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Martha Davis enrolled in Medicare?
Yes. Martha Davis is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does Martha Davis accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Martha Davis as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Martha Davis was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Martha Whitfield Davis, PHD · NPI 1104891977
Clinical provider in Des Moines, Washington. Individual provider, active in the CMS NPPES registry since February 23, 2006.
## Identity
- **NPI:** 1104891977 (Entity type: Individual)
- **Enumerated:** February 23, 2006
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **State license:** 1558 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 22517 7TH AVE S, Des Moines, WA 98198-6820
- **Phone:** (206) 870-9051 · **Fax:** (206) 870-9081
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Medical school:** Other, class of 1988
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1104891977) · Data from the CMS NPPES public registry.