Stephen Lum, O.D.
NPI 1538210182 · Optometrist · National City, CA
Stephen Lum, O.D. is a Optometrist provider in National City, CA (NPI 1538210182).
Provider details
- NPI number
- 1538210182
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 12485T (CA)
Specialties & taxonomies
Eye and Vision Services Providers
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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 1200 Highland AveNational City, CA 91950Phone: (619) 477-9621Fax: (619) 477-9717
Registry dates
- Enumerated
- 2007-01-12
- Last updated
- 2018-12-04
Frequently asked questions
- What is Stephen Lum's NPI number?
- Stephen Lum's National Provider Identifier (NPI) is 1538210182, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Lum's specialty?
- Stephen Lum is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Stephen Lum located?
- Stephen Lum's practice location on file with NPPES is 1200 Highland Ave, National City, CA 91950.
- What is Stephen Lum's phone number?
- The practice phone number listed in the NPPES registry for Stephen Lum is (619) 477-9621.
- Is Stephen Lum's NPI active?
- Yes — Stephen Lum's NPI (1538210182) is active in the NPPES registry as of the last update on 2018-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.