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Nathan Leung, OD
NPI 1801784491 · Optometrist · San Dimas, CA
Nathan Leung, OD is a Optometrist provider in San Dimas, CA (NPI 1801784491).
Provider details
- NPI number
- 1801784491
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- No
- License
- 35958 (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Established profile(54/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
520 N Lone Hill Ave
San Dimas, CA 91773-1725
Phone: (909) 394-4545
Street-level locationGet directions
Mailing address
1350 Avonrea Rd
San Marino, CA 91108-2305
Registry dates
- Enumerated
- 2025-06-24
- Last updated
- 2025-06-24
- Certified
- 2025-06-24
Frequently asked questions
- What is Nathan Leung's NPI number?
- Nathan Leung's National Provider Identifier (NPI) is 1801784491, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Leung's specialty?
- Nathan Leung is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Nathan Leung located?
- Nathan Leung's practice location on file with NPPES is 520 N Lone Hill Ave, San Dimas, CA 91773-1725.
- What is Nathan Leung's phone number?
- The practice phone number listed in the NPPES registry for Nathan Leung is (909) 394-4545.
- Is Nathan Leung's NPI active?
- Yes — Nathan Leung's NPI (1801784491) is active in the NPPES registry as of the last update on 2025-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.