Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ansu Mariam Nathan, O.D

Optometrist in Vienna, VA · enumerated 2014.

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

National Provider Identifier

1831504976

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ansu Mariam Nathan

Credential O.D

Sex Female

Practice address 8369 Leesburg Pike Ste A, Vienna, VA, 22182

Phone (703) 506-0000

Fax (703) 506-0705

Enumeration date Jun 27, 2014

Last updated in NPPES Jun 2, 2021

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OPC5321 (FL) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 0618002626 (VA) Primary

152W00000X Optometrist Eye and Vision Services Providers · License 046.010812 (IL) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License TA2621 (MD) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Ansu Nathan's NPI record?

Cross-check NPI 1831504976 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1831504976 active?

Yes, as of the latest NPPES snapshot, NPI 1831504976 is active (record last updated 2021-06-02).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-02.