NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Karen Louise Niemi, RPH

Pharmacist in Prophetstown, IL · enumerated 2020 · practices at Hartig Drug Co Corp.

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

National Provider Identifier

1013531359

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Registry record

Entity type Individual (Type 1)
Name Karen Louise Niemi
Credential RPH
Sex Female
Practice address Prophetstown, IL, 61277
Phone (815) 537-2400
Fax (815) 537-2404
Enumeration date Jun 2, 2020
Last updated in NPPES Jun 2, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 17862 (IA) Secondary
183500000X Pharmacist Pharmacy Service Providers · License 051286610 (IL) Primary
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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.

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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 Karen Niemi?
Karen Niemi 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-02.