Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Grace Chang, Od PC

Q: What type of organization is Grace Chang, Od PC?

Grace Chang, Od PC is registered in NPPES as a Optometrist (its primary provider taxonomy).

Optometrist in Springfield, VA · enumerated 2017 · authorized official Grace Chang, Owner/Optometrist.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1013453877

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Registry record

Entity type Organization (Type 2)

Legal business name Grace Chang, Od PC

Practice address 6575n Frontier Dr, Springfield, VA, 22150

Phone (703) 971-7722

Fax (703) 971-1724

Enumeration date Jan 17, 2017

Last updated in NPPES Jan 17, 2017

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 0618002188 (VA) Primary

Authorized official

Name Grace Chang

Title Owner/Optometrist

Phone (703) 971-7722

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Grace Chang, Od PC?

Grace Chang, Od PC is registered in NPPES as a Optometrist (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-17.