Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Joanne Yooseon Yoo, NP

Family Nurse Practitioner in Springfield, VA · enumerated 2006.

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

National Provider Identifier

1235183575

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Registry record

Entity type Individual (Type 1)

Name Ms. Joanne Yooseon Yoo

Credential NP

Sex Female

Practice address 8330 Old Keene Mill Rd, Springfield, VA, 22152

Phone (703) 569-1220

Enumeration date May 20, 2006

Last updated in NPPES Jun 8, 2020

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024165727 (VA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
363LF0000X	Other	VA	NOT A GROUP
P00091905	Other	VA	RAILROAD MEDICARE
010051444	Medicaid	VA	-

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

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.

What specialty is Joanne Yoo?

Joanne Yoo is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-08.