Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Chwen-Jing Chen, D.M.D.

General Practice Dentistry in Potomac, MD · enumerated 2005.

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

National Provider Identifier

1275516809

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Registry record

Entity type Individual (Type 1)

Name Chwen-Jing Chen

Credential D.M.D.

Sex Female

Practice address Potomac, MD, 20854

Phone (301) 610-9588

Enumeration date Nov 29, 2005

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 11851 (MD) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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

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 Chwen-Jing Chen?

Chwen-Jing Chen is registered in NPPES with the primary taxonomy of General Practice Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.