Leonidas A. Johnson, O.D., a Professional Corporation
NPI 1891983235 · Optometrist · Los Angeles, CA
Leonidas A. Johnson, O.D., a Professional Corporation is a Optometrist organization in Los Angeles, CA (NPI 1891983235).
Provider details
- NPI number
- 1891983235
- Entity type
- Organization
- Primary specialty
- OptometristEye and Vision Services Providers
- Organization subpart
- No
- Authorized official
- Leonidas Johnson, President(714) 828-7798
- License
- 8254 TLG (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
Other names (DBA / former)
- Doing business as
- Eye Clinic Optometry
Registry dates
- Enumerated
- 2007-10-10
- Last updated
- 2017-06-30
Frequently asked questions
- What is Leonidas A. Johnson, O.D., a Professional Corporation's NPI number?
- Leonidas A. Johnson, O.D., a Professional Corporation's National Provider Identifier (NPI) is 1891983235, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Leonidas A. Johnson, O.D., a Professional Corporation?
- Leonidas A. Johnson, O.D., a Professional Corporation is classified in the NPPES registry as Optometrist (Eye and Vision Services Providers).
- Where is Leonidas A. Johnson, O.D., a Professional Corporation located?
- Leonidas A. Johnson, O.D., a Professional Corporation's practice location on file with NPPES is 4403 S Vermont Ave, Los Angeles, CA 90037-2413.
- What is Leonidas A. Johnson, O.D., a Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Leonidas A. Johnson, O.D., a Professional Corporation is (323) 778-7798.
- Who is the authorized official for Leonidas A. Johnson, O.D., a Professional Corporation?
- The authorized official listed on Leonidas A. Johnson, O.D., a Professional Corporation's NPPES record is Leonidas Johnson, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Leonidas A. Johnson, O.D., a Professional Corporation's NPI active?
- Yes — Leonidas A. Johnson, O.D., a Professional Corporation's NPI (1891983235) is active in the NPPES registry as of the last update on 2017-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.