John Walker, PH.D.
NPI 1366658825 · Marriage & Family Therapist · Hockessin, DE
John Walker, PH.D. is a Marriage & Family Therapist provider in Hockessin, DE (NPI 1366658825).
Provider details
- NPI number
- 1366658825
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0717001110 (VA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2007-05-14
- Last updated
- 2012-03-08
Frequently asked questions
- What is John Walker's NPI number?
- John Walker's National Provider Identifier (NPI) is 1366658825, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Walker's specialty?
- John Walker is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is John Walker located?
- John Walker's practice location on file with NPPES is 710 Yorklyn Rd, Hockessin, DE 19707-8747.
- What is John Walker's phone number?
- The practice phone number listed in the NPPES registry for John Walker is (302) 354-1078.
- Is John Walker's NPI active?
- Yes — John Walker's NPI (1366658825) is active in the NPPES registry as of the last update on 2012-03-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.