NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tammy Liu

Pharmacist in Dover, DE · enumerated 2014 · practices at Delaware Cvs Pharmacy LLC.

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

National Provider Identifier

1437561388

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Tammy Liu
Sex Female
Practice address 148 John Hunn Brown Rd, Dover, DE, 19901
Enumeration date May 27, 2014
Last updated in NPPES May 27, 2014

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License A1-0004317 (DE) 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

How do I verify Tammy Liu's NPI record?
Cross-check NPI 1437561388 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1437561388 active?
Yes, as of the latest NPPES snapshot, NPI 1437561388 is active (record last updated 2014-05-27).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-27.