Mr. Stephen Szewczyk, R.PH.

Mr. Stephen Szewczyk is a Pharmacist provider (Pharmacist) practicing in Deerfield, IL, registered in the NPPES registry with NPI 1730220401 since 2007. The credential RPH stands for Registered Pharmacist.

✓ Active NPI ✓ Valid NPI checksum

NPI	1730220401
Entity type	Individual (Type 1)
Name	Mr. Stephen Szewczyk
Credential	R.PH.
Sex	Male
Practice address	1417 LAKE COOK RD, MS #L459, Deerfield, IL, 60015
Phone	8479646927
Fax	8479648814
Enumeration date	2007-02-08
Last updated in NPPES	2007-07-08

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
183500000X	Pharmacist	Primary	—	IL

RPH — Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential

Copy-ready billing details

Provider: Stephen Szewczyk, R.PH.
NPI: 1730220401
Taxonomy: 183500000X (Pharmacist)
Address: 1417 LAKE COOK RD, MS #L459, Deerfield, IL, 60015

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1083605232	Guy Cozzi	Individual	Pharmacist	Deerfield, IL
1518948116	Amy Pfeifer	Individual	Pharmacist	Deerfield, IL
1720368434	Rose Tang	Individual	Pharmacist	Deerfield, IL

Verify this record

Cross-check NPI 1730220401 against the authoritative CMS record: view Mr. Stephen Szewczyk on the official NPPES registry .

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 or validate an NPI number.

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 Stephen Szewczyk?

Stephen Szewczyk 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.