David Klein, LCSW
NPI 1447998638 · Clinical Social Worker · Fairfax, VA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Klein, LCSW is a Clinical Social Worker provider in Fairfax, VA (NPI 1447998638).
Provider details
- NPI number
- 1447998638
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- 0904013890 (VA)
Specialties & taxonomies
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
4 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
- 2022-05-26
- Last updated
- 2022-05-26
- Certified
- 2022-05-26
Frequently asked questions
- What is David Klein's NPI number?
- David Klein's National Provider Identifier (NPI) is 1447998638, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Klein's specialty?
- David Klein is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is David Klein located?
- David Klein's practice location on file with NPPES is 8221 Willow Oaks Corporate Dr, Fairfax, VA 22031-4512.
- What is David Klein's phone number?
- The practice phone number listed in the NPPES registry for David Klein is (985) 303-5227.
- Does David Klein accept Medicare?
- David Klein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Klein's NPI active?
- Yes — David Klein's NPI (1447998638) is active in the NPPES registry as of the last update on 2022-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.