NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Palmero

Pharmacist in Libertyville, IL · enumerated 2022 · practices at American Drug Stores LLC.

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

National Provider Identifier

1013645332

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mark Palmero
Sex Male
Practice address 1300 S Milwaukee Ave, Libertyville, IL, 60048
Enumeration date Aug 14, 2022
Last updated in NPPES Feb 3, 2026

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 31266 (NC) Secondary
183500000X Pharmacist Pharmacy Service Providers · License 051.307887 (IL) 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 specialty is Mark Palmero?
Mark Palmero is registered in NPPES with the primary taxonomy of Pharmacist. 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 2026-02-03.