IndividualActive
Calvin Chan, OD
NPI 1639067457 · Optometrist · Los Angeles, CA
Calvin Chan, OD is a Optometrist provider in Los Angeles, CA (NPI 1639067457).
Provider details
- NPI number
- 1639067457
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- No
- License
- OPT35953-TLG (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
833 S Western Ave Ste 2
Los Angeles, CA 90005-3376
Phone: (213) 384-1001
Street-level locationGet directions
Mailing address
408 W Hammel St
Monterey Park, CA 91754-7132
Registry dates
- Enumerated
- 2025-06-27
- Last updated
- 2025-07-06
- Certified
- 2025-07-06
Frequently asked questions
- What is Calvin Chan's NPI number?
- Calvin Chan's National Provider Identifier (NPI) is 1639067457, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Calvin Chan's specialty?
- Calvin Chan is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Calvin Chan located?
- Calvin Chan's practice location on file with NPPES is 833 S Western Ave Ste 2, Los Angeles, CA 90005-3376.
- What is Calvin Chan's phone number?
- The practice phone number listed in the NPPES registry for Calvin Chan is (213) 384-1001.
- Is Calvin Chan's NPI active?
- Yes — Calvin Chan's NPI (1639067457) is active in the NPPES registry as of the last update on 2025-07-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.