Katherine Leftin
NPI 1740580216 · Clinical Social Worker · Falls Church, VA
Katherine Leftin is a Clinical Social Worker provider in Falls Church, VA (NPI 1740580216).
Provider details
- NPI number
- 1740580216
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 2013008452 (MO)
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Clinical Social Worker1041C0700X
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
15 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
- 2010-10-29
- Last updated
- 2019-02-11
Frequently asked questions
- What is Katherine Leftin's NPI number?
- Katherine Leftin's National Provider Identifier (NPI) is 1740580216, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Leftin's specialty?
- Katherine Leftin is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Katherine Leftin located?
- Katherine Leftin's practice location on file with NPPES is 201 N Washington St, Falls Church, VA 22046-4518.
- What is Katherine Leftin's phone number?
- The practice phone number listed in the NPPES registry for Katherine Leftin is (314) 684-9481.
- Is Katherine Leftin's NPI active?
- Yes — Katherine Leftin's NPI (1740580216) is active in the NPPES registry as of the last update on 2019-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.