Leonard Kogan, M.D.
NPI 1689010779 · Ophthalmology Physician · Washington, DC
Leonard Kogan, M.D. is a Ophthalmology Physician provider in Washington, DC (NPI 1689010779).
Provider details
- NPI number
- 1689010779
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- DO006165 (MD)
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
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
- 2013-05-15
- Last updated
- 2013-05-15
Frequently asked questions
- What is Leonard Kogan's NPI number?
- Leonard Kogan's National Provider Identifier (NPI) is 1689010779, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Kogan's specialty?
- Leonard Kogan is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Kogan located?
- Leonard Kogan's practice location on file with NPPES is 2801 New Mexico Nw #320, Washington, DC 20007.
- What is Leonard Kogan's phone number?
- The practice phone number listed in the NPPES registry for Leonard Kogan is (202) 365-2784.
- Is Leonard Kogan's NPI active?
- Yes — Leonard Kogan's NPI (1689010779) is active in the NPPES registry as of the last update on 2013-05-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.