Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor
Guang-Ji Wang, O.D.
Optometrist in Malden, MA · enumerated 2006 · practices at Guang-Ji Wang.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1457462921
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Registry record
Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2223768 | Other | MA | AETNA |
| 6176 | Other | MA | NEIGHBERHOOD |
| 0391883 | Medicaid | MA | - |
| 99321901 | Other | MA | NETWORK |
| 9724630 | Medicaid | MA | - |
| W20319 | Other | MA | BLUE CROSS & BLUE SHIELD |
| W22016 | Other | MA | BLUE CROSS & BLUE SHIELD |
| 45722700001 | Other | MA | CIGNA |
| 762408 | Other | MA | TUFTS |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
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Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-23.