IndividualActive
Elizabeth Deffley
NPI 1851075535 · School Social Worker · Fairfax, VA
Elizabeth Deffley is a School Social Worker provider in Fairfax, VA (NPI 1851075535).
Provider details
- NPI number
- 1851075535
- Entity type
- Individual
- Primary specialty
- School Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(52/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
83% 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
8270 Willow Oaks Corporate Dr
Fairfax, VA 22031-4530
Phone: (571) 522-6035
Street-level locationGet directions
Mailing address
8270 Willow Oaks Corporate Dr
Fairfax, VA 22031-4530
Registry dates
- Enumerated
- 2023-06-13
- Last updated
- 2023-06-13
- Certified
- 2023-06-13
Frequently asked questions
- What is Elizabeth Deffley's NPI number?
- Elizabeth Deffley's National Provider Identifier (NPI) is 1851075535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth Deffley's specialty?
- Elizabeth Deffley is listed in the NPPES registry with a primary specialty of School Social Worker (Behavioral Health & Social Service Providers).
- Where is Elizabeth Deffley located?
- Elizabeth Deffley's practice location on file with NPPES is 8270 Willow Oaks Corporate Dr, Fairfax, VA 22031-4530.
- What is Elizabeth Deffley's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth Deffley is (571) 522-6035.
- Is Elizabeth Deffley's NPI active?
- Yes — Elizabeth Deffley's NPI (1851075535) is active in the NPPES registry as of the last update on 2023-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.