Sarah Leffler, MSW, LCSW
NPI 1336490499 · Clinical Social Worker · Alexandria, VA
Sarah Leffler, MSW, LCSW is a Clinical Social Worker provider in Alexandria, VA (NPI 1336490499).
Provider details
- NPI number
- 1336490499
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW, LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0904007021 (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
13 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
- 2012-09-28
- Last updated
- 2025-05-29
Frequently asked questions
- What is Sarah Leffler's NPI number?
- Sarah Leffler's National Provider Identifier (NPI) is 1336490499, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Leffler's specialty?
- Sarah Leffler is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Sarah Leffler located?
- Sarah Leffler's practice location on file with NPPES is 2121 Eisenhower Avenue, Alexandria, VA 22314.
- What is Sarah Leffler's phone number?
- The practice phone number listed in the NPPES registry for Sarah Leffler is (703) 495-3105.
- Is Sarah Leffler's NPI active?
- Yes — Sarah Leffler's NPI (1336490499) is active in the NPPES registry as of the last update on 2025-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.