Leonard Wartofsky, MD
NPI 1336198282 · Endocrinology, Diabetes & Metabolism Physician · Washington, DC
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonard Wartofsky, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Washington, DC (NPI 1336198282).
Provider details
- NPI number
- 1336198282
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- MD4979 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-05-09
- Last updated
- 2007-07-08
Frequently asked questions
- What is Leonard Wartofsky's NPI number?
- Leonard Wartofsky's National Provider Identifier (NPI) is 1336198282, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Wartofsky's specialty?
- Leonard Wartofsky is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Wartofsky located?
- Leonard Wartofsky's practice location on file with NPPES is 110 Irving St Nw, Washington, DC 20010-2976.
- What is Leonard Wartofsky's phone number?
- The practice phone number listed in the NPPES registry for Leonard Wartofsky is (202) 877-2848.
- Does Leonard Wartofsky accept Medicare?
- Leonard Wartofsky is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leonard Wartofsky's NPI active?
- Yes — Leonard Wartofsky's NPI (1336198282) 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.