IndividualActive
Karen Tsai, OD
NPI 1639705965 · Optometrist · Los Angeles, CA
Karen Tsai, OD is a Optometrist provider in Los Angeles, CA (NPI 1639705965).
Provider details
- NPI number
- 1639705965
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- 34676 (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Established profile(64/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
11301 Wilshire Blvd
Los Angeles, CA 90073-1003
Phone: (301) 478-3711
Approximate (ZIP-level) locationGet directions
Mailing address
929 Westridge Dr
Milpitas, CA 95035-7830
Registry dates
- Enumerated
- 2020-03-18
- Last updated
- 2020-12-07
- Certified
- 2020-12-07
Frequently asked questions
- What is Karen Tsai's NPI number?
- Karen Tsai's National Provider Identifier (NPI) is 1639705965, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Tsai's specialty?
- Karen Tsai is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Karen Tsai located?
- Karen Tsai's practice location on file with NPPES is 11301 Wilshire Blvd, Los Angeles, CA 90073-1003.
- What is Karen Tsai's phone number?
- The practice phone number listed in the NPPES registry for Karen Tsai is (301) 478-3711.
- Is Karen Tsai's NPI active?
- Yes — Karen Tsai's NPI (1639705965) is active in the NPPES registry as of the last update on 2020-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.