NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Dennis Owen Steinbrenner, R.PH.

Pharmacist in Lemont, IL · enumerated 2007 · practices at American Drug Stores LLC.

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

National Provider Identifier

1619188224

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Registry record

Entity type Individual (Type 1)
Name Mr. Dennis Owen Steinbrenner
Credential R.PH.
Sex Male
Practice address 1202 State St, Lemont, IL, 60439
Phone (630) 243-1887
Fax (630) 243-1906
Enumeration date May 25, 2007
Last updated in NPPES Jun 4, 2019

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 051-029262 (IL) Primary
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential

Other identifiers

Identifier Type State Issuer
051-029262 Other IL STATE OF ILLINOIS DEPARTMENT OF FINANCIAL AND AND PROFESSIONAL REGULATION

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 Dennis Steinbrenner?
Dennis Steinbrenner 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-04.