Leonard Lefkowitz, MD
NPI 1386865210 · Pediatrics Physician · Washington, DC
Leonard Lefkowitz, MD is a Pediatrics Physician provider in Washington, DC (NPI 1386865210).
Provider details
- NPI number
- 1386865210
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD2906 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
- 2007-05-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Leonard Lefkowitz's NPI number?
- Leonard Lefkowitz's National Provider Identifier (NPI) is 1386865210, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Lefkowitz's specialty?
- Leonard Lefkowitz is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Lefkowitz located?
- Leonard Lefkowitz's practice location on file with NPPES is 2141 K St Nw, Washington, DC 20037-1810.
- What is Leonard Lefkowitz's phone number?
- The practice phone number listed in the NPPES registry for Leonard Lefkowitz is (202) 994-6827.
- Is Leonard Lefkowitz's NPI active?
- Yes — Leonard Lefkowitz's NPI (1386865210) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.