Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Martin Slowinski
Pharmacist in Hillside, IL · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1053908947
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Registry record
Entity type Individual (Type 1)
Name Martin Slowinski
Sex Male
Practice address 600 N Mannheim Rd, Hillside, IL, 60162
Phone (708) 649-3741
Enumeration date Dec 25, 2020
Last updated in NPPES Dec 25, 2020
Taxonomy & licenses
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.
Frequently asked questions
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.
What specialty is Martin Slowinski?
Martin Slowinski 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.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-25.