Cassandra Liew
Optometrist · Philadelphia, PA
Cassandra Liew is an optometrist with a practice address in Philadelphia, Pennsylvania, and NPI 1336511765, issued on Oct 25, 2015. Check the license (Pennsylvania OEG003131, as entered in NPPES) with the Pennsylvania board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Cassandra Liew
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- OEG003131 PA
OP1000336 DC
TUV008366 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1523 Walnut St, Philadelphia, PA 19102
- Phone
- (215) 845-0987
- Enumerated
- Oct 25, 2015
- Record last updated
- Jan 20, 2017 (not updated in 9 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,640 in Pennsylvania → Look up another NPI →
Also registered at 1523 Walnut St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cathy MoonOptometrist1043788946
Verify Cassandra Liew in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license OEG003131Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Cassandra Liew among 2,640 optometrist records in Pennsylvania
Cassandra Liew is one of 2,640 optometrist records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2015, is newer than 76% of them.
- NPI issued2015 · 76% of these records are older, 22% newer
- In a Medicare fileNo · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2017 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Pennsylvania
There are 2,640 optometrist records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,640 in Pennsylvania → Every provider in Philadelphia → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Valerie Biscardi, O.D.Philadelphia, PA 191021194818906
- Carole Levin, O.D.Philadelphia, PA 191021104128818
- Cathy MoonPhiladelphia, PA 191021043788946
- Ronald Platt, O.D.Philadelphia, PA 191021811942972
- Delbert Ritchey, O.D.Philadelphia, PA 191021194878520
- Amy Sumner, ODPhiladelphia, PA 191021063084101
- Linden Will, O.D.Philadelphia, PA 191021790168995
- Robert Wortman, O.D.Philadelphia, PA 191021427117795
Common questions
What is Cassandra Liew's NPI number?
Cassandra Liew's National Provider Identifier (NPI) is 1336511765, issued on Oct 25, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Cassandra Liew located?
The NPPES record lists a practice address at 1523 Walnut St, Philadelphia, PA, 19102. Phone: (215) 845-0987. Providers update this record themselves, so call before visiting.
How can I verify Cassandra Liew's license?
NPPES lists Pennsylvania license number OEG003131, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.