Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Julie Sophia Hwang, O.D.
Optometrist in Sunnyvale, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1457544488
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Julie Sophia Hwang
Credential O.D.
Sex Female
Practice address 927 E Arques Ave Ste 181, Sunnyvale, CA, 94085
Phone (408) 749-1530
Enumeration date Aug 22, 2007
Last updated in NPPES Jan 3, 2022
Taxonomy & licenses
152WL0500X Low Vision Rehabilitation Optometrist Eye and Vision Services Providers · License 1642 (AZ) Secondary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
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
What specialty is Julie Hwang?
Julie Hwang is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-03.