Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Eleanor H Yoon, MD
Obstetrics & Gynecology Physician in Fairfax, VA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1053302596
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 115857 | Other | - | ANTHEM |
| 533606 | Other | - | NCPPO |
| 540894297 | Other | - | GW ONE HEALTH |
| 34300009 | Other | - | BCBS OF DC |
| 0703850 | Other | - | UNHC |
| 379651 | Other | - | ALLIANCE |
| 3503396 | Other | - | AETNA HMO |
| 379651 | Other | - | MDIPA OPTIMUM |
| 5569742 | Other | - | AETNA |
| 01-0097592 | Medicaid | VA | - |
| 540894297 | Other | - | PHCS |
| 9068176003 | Other | - | CIGNA |
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.
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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-27.