NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Yoomi Ko

Pharmacist in Downingtown, PA · enumerated 2017.

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

National Provider Identifier

1003332180

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Yoomi Ko
Sex Female
Practice address 101 Wallace Ave, Downingtown, PA, 19335
Phone (610) 873-4725
Enumeration date Aug 20, 2017
Last updated in NPPES Jun 17, 2024

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License RP451727 (PA) Primary

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 is the NPI number for Yoomi Ko?
The National Provider Identifier (NPI) for Yoomi Ko is 1003332180, a Type 1 (individual) record in the CMS NPPES registry.
Where does Yoomi Ko practice?
The practice location on file with NPPES is in Downingtown, PA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-17.