NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Christopher Slusarczyk, PHARMD

Pharmacist in Chicago, IL · enumerated 2016 · practices at American Drug Stores LLC.

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

National Provider Identifier

1639527211

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Christopher Slusarczyk
Credential PHARMD
Sex Male
Practice address 2520 N Narragansett Ave, Chicago, IL, 60639
Phone (773) 637-1819
Fax (773) 637-1875
Enumeration date May 24, 2016
Last updated in NPPES May 24, 2016

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 051-039421 (IL) Primary
PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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 NPI 1639527211 active?
Yes, as of the latest NPPES snapshot, NPI 1639527211 is active (record last updated 2016-05-24).
How do I verify Christopher Slusarczyk's NPI record?
Cross-check NPI 1639527211 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-05-24.