NPI Portal NPI Lookup & Verification

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

Eric Chi-Jun Jan, OD

Optometrist in Rockville, MD · enumerated 2009 · practices at Eric Jan, O.D., LLC.

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

National Provider Identifier

1285862110

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Eric Chi-Jun Jan
Credential OD
Sex Male
Practice address Rockville, MD, 20850
Phone (301) 996-7806
Enumeration date Jun 30, 2009
Last updated in NPPES Oct 19, 2011

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 0618001846 (VA) Primary
152W00000X Optometrist Eye and Vision Services Providers · License TA2152 (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

What specialty is Eric Jan?
Eric Jan is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-19.