IndividualActive
Philip Knowles, PHD
NPI 1811052905 · Psychologist · Edmonds, WA
Philip Knowles, PHD is a Psychologist provider in Edmonds, WA (NPI 1811052905).
Provider details
- NPI number
- 1811052905
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- PY00000874 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
21616 76th Ave W
#102
Edmonds, WA 98026-7512
Phone: (425) 774-1538
Fax: (425) 744-1527
Street-level locationGet directions
Mailing address
Po Box 5194
Lynnwood, WA 98046-5194
Registry dates
- Enumerated
- 2006-12-27
- Last updated
- 2011-11-04
Frequently asked questions
- What is Philip Knowles's NPI number?
- Philip Knowles's National Provider Identifier (NPI) is 1811052905, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Philip Knowles's specialty?
- Philip Knowles is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Philip Knowles located?
- Philip Knowles's practice location on file with NPPES is 21616 76th Ave W, Edmonds, WA 98026-7512.
- What is Philip Knowles's phone number?
- The practice phone number listed in the NPPES registry for Philip Knowles is (425) 774-1538.
- Is Philip Knowles's NPI active?
- Yes — Philip Knowles's NPI (1811052905) is active in the NPPES registry as of the last update on 2011-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.