Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Dawn Louise Siil, R.PH.

Pharmacist in Woodridge, IL · enumerated 2007.

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

National Provider Identifier

1932322575

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Registry record

Entity type Individual (Type 1)

Name Mrs. Dawn Louise Siil

Credential R.PH.

Sex Female

Practice address 2363 63rd St, Woodridge, IL, 60517

Phone (630) 493-9084

Fax (630) 493-9089

Enumeration date Apr 11, 2007

Last updated in NPPES Oct 26, 2010

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 051.035804 (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.

Read the full guide → Validate an NPI →

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 Dawn Siil?

Dawn Siil 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 2010-10-26.