Cassandra Liew
NPI 1336511765 · Optometrist · Philadelphia, PA
Cassandra Liew is a Optometrist provider in Philadelphia, PA (NPI 1336511765).
Provider details
- NPI number
- 1336511765
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Sex
- Female
- Sole proprietor
- No
- License
- OP1000336 (DC)
Specialties & taxonomies
Eye and Vision Services Providers
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
10 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
Mailing address
Registry dates
- Enumerated
- 2015-10-25
- Last updated
- 2017-01-20
Frequently asked questions
- What is Cassandra Liew's NPI number?
- Cassandra Liew's National Provider Identifier (NPI) is 1336511765, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassandra Liew's specialty?
- Cassandra Liew is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Cassandra Liew located?
- Cassandra Liew's practice location on file with NPPES is 1523 Walnut St, Philadelphia, PA 19102-3001.
- What is Cassandra Liew's phone number?
- The practice phone number listed in the NPPES registry for Cassandra Liew is (215) 845-0987.
- Is Cassandra Liew's NPI active?
- Yes — Cassandra Liew's NPI (1336511765) is active in the NPPES registry as of the last update on 2017-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.