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Diana Lou, O.D.
NPI 1164546487 · Optometrist · El Monte, CA
Diana Lou, O.D. is a Optometrist provider in El Monte, CA (NPI 1164546487).
Provider details
- NPI number
- 1164546487
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 9988T (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Detailed profile(90/100 index)
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
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
10906 Valley Mall
El Monte, CA 91731-2616
Phone: (626) 579-2020
Fax: (626) 444-8522
Street-level locationGet directions
Mailing address
3811 Steinbeck Ct
Irvine, CA 92606-1832
Registry dates
- Enumerated
- 2007-03-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Diana Lou's NPI number?
- Diana Lou's National Provider Identifier (NPI) is 1164546487, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Lou's specialty?
- Diana Lou is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Diana Lou located?
- Diana Lou's practice location on file with NPPES is 10906 Valley Mall, El Monte, CA 91731-2616.
- What is Diana Lou's phone number?
- The practice phone number listed in the NPPES registry for Diana Lou is (626) 579-2020.
- Is Diana Lou's NPI active?
- Yes — Diana Lou's NPI (1164546487) 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.